Floatless Level Switch (Compact Type) 61F-G@N CSM_61F-G_N_DS_E_3_3 Improved Design for a More Lightweight Construction and Reduced Standby Power Consumption. • Standby power reduced to 85% or less of previous models. (Applicable to 61F-GN.) • Weighs only 85% or less of previous models. (Applicable to 61F-G3N/-G4N.) • Easy identification of operating status with LED operation indicator. • Increased reliability of internal relay (micro load: 5 VDC, 1 mA) to enable PLC input. • Electrode terminals and other wiring terminals are separated for easy wiring. • Select from three mounting methods: JEM, DIN rail mounting, or screw mounting. Note: LED operation indicator is provided on Controllers manufactured in August 1999 or later. Refer to Safety Precautions for Floatless Level Controllers. Model Number Structure ■ Model Number Legend 61F-@N@ 1 2 1. Controller Application G: Automatic water supply and drainage G1: Automatic water supply with idling prevention or water shortage alarm G2: Automatic water supply and drainage with abnormal water increase alarm G3: Automatic water supply and drainage with full tank and water shortage alarm G4: Automatic water supply with water level indicator for water supply tank and water receiving tank and prevention of idling due to water shortage I: Liquid level indication and alarm (no two-wire models) 2. Type Blank: L 2KM: L 4KM: H: D: R: General-purpose Long-distance (for 2 km) Long-distance (for 4 km) High-sensitivity Low-sensitivity Two-wire Position of LED Indicator Note: LED indicator is provided on Controllers manufactured in August 1999 or later. It is not mounted on the case surface. It can be seen through the case. 1 61F-G@N Ordering Information Classification by application Set contents Generalpurpose Classification by control purpose Controller GN ◆ Models 61F-GN Base x 1 61F-GN 61F-11@ Units x 1 Long-distance HighLow(between sensitivity (for sensitivity (for Controller and high specific low specific Electrodes) resistance) resistance) (See note 2.) Two wire 61F-GNL 61F-GNH 61F-GND 61F-GNR 61F-G1NL 61F-G1NH 61F-G1ND 61F-G1NR G2N ◆ w/alarm for 61F-G2N Base x 1 61F-G2N Models abnormally high 61F-11@ Units x 2 level 61F-G2NL 61F-G2NH 61F-G2ND 61F-G2NR G3N ◆ w/alarm for 61F-G3N Base x 1 61F-G3N Models abnormally high 61F-11@ Units x 3 and low levels 61F-G3NL 61F-G3NH 61F-G3ND 61F-G3NR G4N w/level 61F-G4N Base x 1 61F-G4N Models display of water 61F-11@ Units x 5 source and tank MY3 Relay x 1 61F-G4NL 61F-G4NH 61F-G4ND 61F-G4NR IN Level indication Models with alarm 61F-IN Base x 1 61F-IN 61F-11@ Units x 2 61F-INL 61F-INH 61F-IND 61F-INR 61F-11@ Units x 1 61F-11N 61F-11NL 61F-11NH 61F-11ND 61F-11NR G1N w/pump idling 61F-G1N Base x 1 61F-G1N Models prevention 61F-11@ Units x 2 w/alarm for abnormally low level Relay unit Note: 1. ◆: Automatic water supply and drainage control, : Automatic water supply control 2. Subclassified into 2 km and 4 km models according to the model of relay unit used. Specify 2 km or 4 km when ordering. 3. When ordering, specify the desired operating voltage at the end of the model number. Example: 61F-GN[110/220 VAC] Desired supply voltage 4. Contact your OMRON representative for products with voltages other than those listed above. 5. If you order with a standard model number, the corresponding Relay Units are also delivered as part of a set. If you order the 61F-GN, one 61F-11 Relay Unit is included in the set. 2 61F-G@N Specifications Standard Models Items Type General-purpose Controllers 61F-@N Long-distance Controllers Controlling materials and For control of ordinary purified water and operating conditions wastewater 61F-@NL 2KM (2 km) 61F-@NL 4KM (4 km) High-sensitivity Controllers 61F-@NH For control of ordinary purified water and For control of liquids with high specific wastewater. Particularly in cases where the resistance, such as distilled water distance between the pumps and water tanks or between supply and receiver tanks are far apart or where remote control is required. Rated voltage 100/200, 110/220 or 120/240 VAC, 50/60 Hz (both supported on same model) Allowable voltage fluctuation range 85% to 110% of rated voltage Inter-electrode voltage 8 VAC Inter-electrode current Approx. 1 mA AC max. Power consumption GN@: 3 VA max., G1N@, G2N@, IN@: 4 VA max., G3N@: 5.5 VA max., G4N@: 8.5 VA max. Inter-electrode operation resistance (recommended values) 0 to approx. 4 kΩ 0 to 1.8 kΩ (for 2 km) 0 to 0.7 kΩ (for 4 km) Approx. 10 kΩ to 40 kΩ (See note 4.) Inter-electrode release resistance (recommended values) Approx. 15 k to ∞Ω 4 k to ∞Ω (for 2 km) 2.5 k to ∞Ω (for 4 km) Approx. 100 k to ∞Ω Cable length (See note 2.) 1 km max. 2 km max. 4 km max. 50 m max. Output 3 A, 200 VAC (Resistive load) Ambient operating temperature −10 to 55°C Ambient operating humidity 45% to 85% Insulation resistance (See note 3.) 100 MΩ min. (at 500 VDC) Dielectric strength (See note 3.) 2,000 VAC, 50/60 Hz for 1 min. Life expectancy Electrical: 250,000 operations min. Mechanical: 10,000,000 operations min. Weight GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g; G4N models: 870 g Internal Circuit Diagrams Example: 61F-GN S2 Example: 61F-GNL S2 S0 S1 Tb Tb Ta Tc Example: 61F-GNH 200 V 8V U 100 V 24 V 200 V 8V 0 V Transformer 61F-11N Relay Unit U U E2 E1 E3 Ta Tc U 0 V Transformer 61F-11N Relay Unit U E3 S0 S1 Tb U 0 V Transformer 24 V Ta Tc U 100 V S2 S0 S1 100 V 24 V 200 V 8V 61F-11N Relay Unit U U E2 E1 E3 E2 E1 Note: 1. The @ in the model name represents G, G1, G2, G3, G4, or I. 2. The length when using completely insulated, 600-V, 3-core (0.75 mm2) cabtire cables. Usable cable lengths will become shorter as the cable diameter or number of cores becomes larger due to increased floating capacity. For details, refer to Safety Precautions for Floatless Level Controllers. 3. The insulation resistance and dielectric strength are the values between power terminals and Electrode terminals, between power terminals and contact terminals, and between Electrode terminals and contact terminals. For details, refer to Safety Precautions for Floatless Level Controllers. 4. Application is possible with 10 kΩ or less, however, this may cause reset failures. 3 61F-G@N Type Low-sensitivity Controller 61F-@ND Two-wire Controller 61F-@NR Items Controlling materials and operating conditions For control of liquids with low specific For control of ordinary purified water resistance, such as salt water, wastewater, or wastewater. Used with a Two-wire acid chemicals, or alkaline chemicals Electrode Holder (incorporating a resistor of 6.8 kΩ) Rated voltage 100/200, 110/220 or 120/240 VAC, 50/60 Hz (supported by the same model) Allowable Voltage Fluctuation 85% to 110% of rated voltage Inter-electrode current Approx. 1 mA AC max. GN@: 3 VA max., G1N@, G2N@, IN@: 4 VA max., G3N@: 5.5 VA max., G4N@: 8.5 VA max. Inter-electrode 0 to approx. 1.8 kΩ operation resistance (recommended values) Approx. 0 to 1.1 kΩ Inter-electrode release Approx. 5 k to ∞ Ω resistance (recommended values) Approx. 15 k to ∞ Ω Cable length (See note 2.) 1 km max. 800 m max. Output 3 A, 200 VAC (Resistive load) Ambient operating temperature −10 to 55°C Ambient operating humidity 45% to 85% Insulation resistance (See note 3.) 100 MΩ min. (at 500 VDC) Dielectric strength (See note 3.) 2,000 VAC, 50/60 Hz for 1 min. Life expectancy Electrical: 250,000 operations min. Mechanical: 10,000,000 operations min. GN models: 315 g; G1N, G2N, IN models: 410 g; G3N models: 625g; G4N models: 870 g Internal Circuit Diagrams Example: 61F-GND 61F-11N Longdistance Controllers 61F-11NL (for 2 km) Provided 61F-11NL (for 4 km) Highsensitivity Controllers 61F-11NH Lowsensitivity Controller 61F-11ND Two-wire Controller 61F-11NR S2 S0 S1 200 V 8V S S 9 8 24 V S 7 11 24 V Ta U 0 V Transformer 24 V E S0 Tc U 100 V Not provided Relay Unit Circuit S1 Tb Ta Tc --- 10 8V Example: 61F-GNR Tb 0V 61F-11ND Relay Unit U Transformer 100V 24V 200V 8V 61F-11ND Relay Unit U 4 Tb1 5 Ta1 6 Tc1 1 Tc2 2 Ta2 3 Tb2 U Ordering Example U E3 Generalpurpose Controller Terminal Arrangement Weight S2 The Relay Unit can be replaced without removing the wires for maintenance inspections. It can also be replaced with other Relay Units. Compatibility with General Purpose Model (61F-11N) Inter-electrode voltage 8 VAC Power consumption ■ Relay Unit E2 E1 E3 E1 Note: 1. The @ in the model name represents G, G1, G2, G3, G4, or I. 2. The length when using completely insulated, 600-V, 3-core (0.75 mm2) cabtire cables. Usable cable lengths will become shorter as the cable diameter or number of cores becomes larger due to increased floating capacity. For details, refer to Safety Precautions for Floatless Level Controllers. 3. The insulation resistance and dielectric strength are the values between power terminals and Electrode terminals, between power terminals and contact terminals, and between Electrode terminals and contact terminals. For details, refer to Safety Precautions for Floatless Level Controllers. 4. Application is possible with 10 kΩ or less, however, this may cause reset failures. If you order the components listed above, the corresponding Relay Unit will be supplied with the Controller. Example: If a 61F-GN Controller is ordered, a 61F-11N Relay Unit will also be included. 4 61F-G@N ■ Connections Automatic Water Supply Control Compact Model 61F-GN Dimensions page 16 Automatic Water Supply Control Connections • Connect contactor coil terminal to Tb. • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC 220-VAC power supply R S T 61F-GN MCCB Ta 0V S0 Tc E1 24 V 61F-11N Relay Unit U U E2 110 V S1 U Tb 8V 220 V S2 E3 Transformer (See note 1.) Contactor PS-3S Motor protection relay Water tank Water supply source M E1 E3 E2 Stop Start P Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation The pump stops (U indicator ON) when the water level reaches E1 and starts (U indicator OFF) when the water level drops below E2. U 1 Water supply P Pump OFF E1 Pump ON E2 Power supply Relay Unit Layout (U indicator ON) (U indicator OFF) E3 5 61F-G@N Automatic Drainage Control Compact Model 61F-GN Dimensions page 16 Automatic Drainage Control Connections • Connect the contactor coil terminal to Ta. • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC 220-VAC power supply R S T 61F-GN MCCB Ta S0 Tc 0V E1 24 V 61F-11N Relay Unit U U E2 110 V S1 U Tb 220 V S2 8V E3 Transformer Contactor (See note 1.) Motor protection relay PS-3S E1 Wastewater tank M E3 E2 Start Stop P Reservoir Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation • The pump starts (U indicator ON) when the water level reaches E1 and stops (U indicator OFF) when the water level drops below E2. Pump ON E1 Pump OFF E2 E3 (U indicator ON) U 1 Power supply Relay Unit Layout (U indicator OFF) P Water drainage 6 61F-G@N Automatic Water Supply Control with Pump Idling Prevention Compact Model 61F-G1N Dimensions page 16 Automatic Water Supply Control with Pump Idling Prevention Connections 220-VAC power supply R S T MCCB 61F-G1N Tc2 0V S0 B Tb2 110 V S1 Alarm Bell 220 V S2 Ta1 Test Operation/ Recovering from Power Interruptions If the water supply source level has not yet reached E1' when starting the pump or after recovering from a power interruption, press the pushbutton switch to start the pump (U1 indicator ON) by momentarily short-circuiting E1' and E3. U1 U2 E1 24 V 61F-11N Relay Unit U1 24 V 61F-11N Relay Unit U2 U2 E2 E3 8V (Pushbutton switch) • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC • Insert a pushbutton switch (NO contact) between E1' and E3 as shown by the dotted line. • Do not press the pushbutton switch if the pump stops (U1 indicator OFF) during normal operation after an alarm is given for a low water level (e.g., the water level does not reach E2'). E1' Transformer U1 Tb1 E2' Contactor (See note 1.) PS-3S Motor Protection Relay E1 Water tank PS-3S E3 Water supply source M P E1' Stop Start E2 Water shortage E2' E3 Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Note Relay Unit Layout Water shortage E1' E2' (U1 indicator ON) (U1 indicator OFF) E3 B L Water tank Water supply U U 2 1 Power supply • The pump starts (U2 indicator OFF) when the water level drops below E2 and stops (U2 indicator ON) when water level reaches E1. • The pump is forced to stop when the water supply source level drops below E2' (U1 indicator OFF) to prevent the pump from idling and gives an alarm. Water supply source • Length of Electrode E1' When installing the Controller in locations where there is a possibility of momentary power interrupts or blackouts, the length of E1' should be made so that the amount of water corresponding to one pump cycle does not expose the Electrodes. This will prevent the E2' self-holding circuit from failing. P Pump OFF E1 (U2 indicator ON) Float Water supply source E1' Pump ON E2 (U2 indicator OFF) Amount of water for one pump cycle E2' E3 E3 7 61F-G@N Automatic Water Supply Control with Abnormal Water Shortage Alarm Compact Model 61F-G1N Dimensions page 16 Automatic Water Supply Control with Abnormal Water Shortage Alarm Connections 220-VAC power supply R S T MCCB 61F-G1N Tc2 0V S0 B Tb2 Alarm Bell Test Operation/ Recovering from Power Interruptions If the water level has not yet reached E4 when starting the pump or after recovering from a power interruption, press the pushbutton switch to start the pump by short-circuiting E3 and E4 (U1 indicator ON). U1 S1 110 V S2 220 V Ta1 U2 E1 24 V 61F-11N Relay Unit U1 24 V 61F-11N Relay Unit U2 U2 E2 E3 8V Transformer E1' U1 Tb1 (Pushbutton switch) • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC • Insert a pushbutton switch (NO contact) between E3 and E4. • If the pump stops upon releasing the pushbutton switch, keep pressing the pushbutton switch. • Connect the E4 electrode for the water shortage alarm to the E1’ terminal. (E4) E2' Contactor (See note 1.) PS-4S Motor Protection Relay E3 Water supply source M Stop E1 Water tank E4 Start Water shortage E2 P Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Relay Unit Layout Water supply source U U Water supply 2 1 P Pump OFF E1 Pump ON E2 Water shortage E4 B L Power supply • The pump stops (U2 indicator ON) when the water level reaches E1 and starts (U2 indicator OFF) when water level drops below E2. • If the water level drops below E4 for any reason, an alarm is given (U1 indicator OFF). (U2 indicator ON) (U2 indicator OFF) (U1 indicator OFF) E3 8 61F-G@N Automatic Water Supply with Abnormal Water Increase Alarm Compact Model 61F-G2N Dimensions page 16 Automatic Water Supply with Abnormal Water Increase Alarm Connections • Connect power supply terminal S2 to terminal Tb1. • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC 220-VAC power supply R S T 61F-G2N MCCB Ta2 S0 Tc2 B 110 V S1 Alarm Bell Ta1 S2 Tc1 E1 0V U1 220 V 24 V 61F-11N Relay Unit U1 24 V 61F-11N Relay Unit U2 U2 E2 E3 8V U2 E4 Transformer Tb1 (See note 1.) Contactor PS-4S Motor Protection Relay Water tank Water supply source P M Full tank Stop Start E4 E1 E2 E3 Reservoir Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Relay Unit Layout P Water supply E4 Pump OFF E1 Pump ON E2 B L Upper limit (U1 indicator ON) U U 2 1 Power supply • The pump starts (U2 indicator OFF) when the water level reaches E2 and stops (U2 indicator ON) when the water level rises above E1. • If the water level reaches E4 for any reason, an alarm is given (U1 indicator ON). (U2 indicator ON) (U2 indicator OFF) E3 9 61F-G@N Automatic Drainage Control with Abnormal Water Increase Alarm Compact Model 61F-G2N Dimensions page 16 Automatic Drainage Control with Abnormal Water Increase Alarm Connections • Connect power supply S2 to terminal Ta1. • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC 220-VAC power supply R S T 61F-G2N MCCB Ta2 S0 B Tc2 U1 110 V S1 Alarm Bell Ta1 S2 Tc1 E1 0V 24 V 61F-11N Relay Unit U1 24 V 61F-11N Relay Unit U2 U2 E2 8V E3 Transformer E4 220 V U2 Tb1 (See note 1.) Contactor Motor Protection Relay PS-4S Wastewater tank E1 M E3 P E4 E2 Full tank Start Stop Reservoir Note: 1. Be sure to ground the common Electrode E5 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Relay Unit Layout Water tank B L E4 Pump ON E1 Pump OFF E2 U U Upper limit (U1 indicator ON) 2 1 Power supply • The pump starts (U2 indicator ON) when the water level reaches E1 and stops (U2 indicator OFF) when the water level drops below E2. • If the water level reaches E4 for any reason, an alarm is given (U1 indicator ON). (U2 indicator ON) (U2 indicator OFF) E3 P Water drainage 10 61F-G@N Automatic Water Supply Control with Full Tank and Water Shortage Alarm Compact Model 61F-G3N Dimensions page 17 Automatic Water Supply Control with Full Tank and Water Shortage Alarm Connections • Connect contactor coil terminal to Tb. • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC 220-VAC power supply 61F-G3N R S T Transformer Ta 0V S0 MCCB 24 V U2 Tc To 61F-11N Relay Unit 110 V S1 Tb 220 V S2 E2 8V U2 U1 Upper limit E3 U3 61F-11N Relay Unit U1 U1 61F-11N Relay Unit U2 61F-11N Relay Unit U3 LH PL B1 Lc Lower limit B2 U3 LL PL E1 24 V B E4 E5 (See note 1.) Alarm Bell Contactor PS-5S Motor Protection Relay E1 Water tank Water supply source M E3 E5 E2 E4 Full tank Stop Start Water shortage P Note: 1. Be sure to ground the common Electrode E5 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Relay Unit Layout P LH Water supply B (U1 indicator ON) E1 Pump OFF (U2 indicator ON) E2 Pump ON (U2 indicator OFF) E3 E4 E5 U U U 3 2 1 Upper limit Power supply • The pump starts (U2 indicator ON) when the water level reaches E2 and stops (U2 indicator OFF) when the water level drops below E3. • If the water level rises to E1 for any reason, the upper-limit indicator turns ON and an alarm is given (U1 indicator ON). If the water level drops below E4 for any reason, the lower-limit indicator turns ON and an alarm is given (U3 indicator OFF). Lower limit (U3 indicator OFF) LL B 11 61F-G@N Automatic Drainage Control with Full Tank and Water Shortage Alarm Compact Model 61F-G3N Dimensions page 17 Automatic Drainage Control with Full Tank and Water Shortage Alarm Connections • Connect contactor coil terminal to Ta. • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC 220-VAC power supply 61F-G3N R S T Transformer Ta 0V S0 MCCB U2 Tc 110 V S1 Tb 220 V S2 24 V To 61F-11N Relay Unit 8V E2 U2 U1 Upper limit PL E3 U3 61F-11N Relay Unit U1 U1 61F-11N Relay Unit U2 61F-11N Relay Unit U3 LH B1 LC Lower limit B2 U3 LL PL E1 24 V E4 E5 B Alarm Bell Contactor (See note 1.) Motor Protection Relay PS-5S Full tank Start Stop Water shortage E1 E2 Wastewater tank M E5 P E4 E3 Reservoir Note: 1. Be sure to ground the common Electrode E5 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Relay Unit Layout LH B (U1 indicator ON) E1 Pump ON (U2 indicator ON) E2 Pump OFF (U2 indicator OFF) E3 E4 E5 U U U 3 2 1 Upper limit Power supply • The pump starts (U2 indicator ON) when the water level reaches E2 and stops (U2 indicator OFF) when the water level reaches E3. • If the water level rises to E1 for any reason, the upper-limit indicator turns ON and an alarm is given (U1 indicator ON). If the water level drops below E4 for any reason, the lower-limit indicator turns ON and an alarm is given (U3 indicator OFF). Lower limit (U3 indicator OFF) LL B 12 61F-G@N Water Source Level Indication with Prevention of Pump Idling Due to Water Shortage, and Automatic Water Supply Control with Indication of Water Level in Elevated Tank Compact Model 61F-G4N Dimensions page 17 Water Source Level Indication with Prevention of Pump Idling Due to Water Shortage, and Automatic Water Supply Control with Indication of Water Level in Elevated Tank 220-VAC power supply R S T • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC • Insert a pushbutton switch (NO contact) between E2 and E8 as shown by the dotted line. • Do not press the pushbutton switch if the pump stops during normal operation after an alarm is given for low water level (i.e., the water level has not reached E3). 61F-G4N Transformer S0 U2 S1 MCCB 0V X 24 V To 61F-11N Relay Unit MY3 Relay 110 V S2 X Tc 24 V 8V 220 V E1 U5 Tc2 E2 TA U2 E3 E8 B BH1 BL1 Test Operation/ Recovering from Power Interruptions BH2 BL2 When starting the pump and after recovering from a power interruption, if the water source level has not yet reached E2 (U2 indicator OFF), press the pushbutton switch to start the pump by momentarily short-circuiting E2 and E8. LH1 LL1 LH2 Contactor LL2 Elevated tank repletion Elevated tank water shortage Water supply source upper limit Water supply source lower limit Elevated tank repletion Elevated tank water shortage Water supply source upper limit Water supply source lower limit E4 U4 BH1 U1 BL1 U3 BH2 X BL2 61F-11N U2 Relay Unit E6 61F-11N U1 Relay Unit U3 LH2 E5 E7 E8 61F-11N U5 Relay Unit U1 LL1 61F-11N U3 Relay Unit 61F-11N U4 Relay Unit U4 LH1 (Pushbutton switch) Connections U5 X LL2 (See note 1.) PS-5S Motor Protection Relay E4 PS-4S Water supply source M P E1 E2 E8 E3 E5 Water tank Upper limit ON OFF Lower limit E6 E8 Full tank Stop Start Water shortage E7 Note: 1. Be sure to ground the common Electrode E8 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Precaution Relay Unit Layout Power supply • Insert four Electrodes in the water supply source and five Electrodes in the elevated water tank. • The lower-limit indicator for the water supply source remains U5 U4 U3 U2 U1 X ON while the water source level is below E3 (U2 indicator OFF). • When the water level rises to E2, the lower-limit indicator turns OFF (U2 indicator ON) and the pump is ready for operation. • When the water level reaches E1, the upper-limit indicator turns ON (U3 indicator ON). • The water-shortage indicator for the elevated tank remains ON while the water level in the elevated tank is below E7. The indicator turns OFF (U1 indicator ON) when the water level rises to E7. • The pump stops (U5 indicator ON) when the water level reaches E5 and starts (U5 indicator OFF) when the water level drops below E6. • If the water level reaches E4 for any reason, the tank repletion indicator for the elevated tank turns ON (U4 indicator ON). • Length of Electrode E2 When installing the Controller in locations where there is a possibility of momentary power interruptions or blackouts, the length of E2 should be made so that the amount of water corresponding to one pump cycle does not expose the Electrodes. This will prevent the E3 self-holding circuit from failing. Float Water supply source E1 E2 E8 Float valve open Amount of water for one pump cycle E3 13 61F-G@N Liquid Level Indication and Alarm Compact Model 61F-IN Dimensions page 16 Liquid Level Indication and Alarm Connections • Connect to power supply terminals. S0-S1: 110 VAC S0-S2: 220 VAC 220-VAC power supply R S T MCCB 61F-IN Tc U2 S0 B B Alarm Bell 110 V S1 L1 PL Lower limit U2 S2 PL Upper limit L2 PL L3 E1 0V U1 220 V 24 V 61F-11N Relay Unit U1 24 V 61F-11N Relay Unit U2 E2 E3 8V Transformer U1 Intermediate (See note 1.) PS-3S Upper limit E1 Water tank E3 Water supply source M E2 Intermediate Lower limit P Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/220 VAC. Principles of Operation Relay Unit Layout Water tank B LH Upper limit (U1 indicator ON) E1 LM Intermediate LL Lower limit (U1 indicator OFF) U U 2 1 Power supply • When the water level drops below E2, the lower-limit indicator turns ON and an alarm is given (U2 indicator OFF). • When the water level reaches E2, the alarm turns OFF and the intermediate indicator turns ON (U2 indicator ON). • When the water level rises to E1, the upperlimit indicator turns ON and an alarm is given (U1 indicator ON). (U2 indicator ON) B E2 (U2 indicator OFF) E3 14 61F-G@N ■ Two-wire Connection The wiring between the 61F Controller and the Electrodes can be reduced by removing the self-hold circuit. This arrangement is called a two-wire connection. Three Electrodes are still required. Both the 61F Controller (including the Relay Unit) and Electrode Holder must be two-wire models. Two-wire Electrode Holders have an in-built resistor of 6.8 kΩ 1W. Automatic Water Supply and Drainage Control Compact Model 61F-GNR Dimensions page 16 Automatic Water Supply Control Automatic Drainage Control Connections Connections 220-VAC power supply 220-VAC power supply R S T R S T MCCB 61F-GNR 61F-GNR MCCB S0 S1 S2 Ta Tc Tb 0V U 110 V E1 24V 61F-11NR Relay Unit U S0 S1 U 8V 220 V Transformer E3 S2 (See note 1.) Contactor Ta 0 V 24 V 61F-11NR U U Relay Unit 110 V Tc Tb E1 U 8V 220 V Transformer E3 Contactor (See note 1.) PS-3SR Motor protection relay Water tank Water supply source M R E1 E2 E3 Motor protection relay Stop Start E2 P PS-3SR R Wastewater tank M P E1 Start Stop E3 Reservoir Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/ 220 VAC. Note: 1. Be sure to ground the common Electrode E3 (the longest Electrode). 2. The above wiring diagram is for a rated voltage of 110/ 220 VAC. • Connect contactor coil terminal to Tb. • Connect to power supply terminals. S0-S1: 100 VAC S0-S2: 200 VAC • The two-wire models require only two cables for the connection between the 61F-GNR and the Electrode Holder, but still requires three Electrodes. • A Two-wire Electrode Holder must be used. (It has an inbuilt resistance R.) • The Relay Unit must also be for two-wire models. • Connect contactor coil terminal to Ta. (Do not connect Tb.) • Connect to power supply terminals. S0-S1: 100 VAC S0-S2: 200 VAC • The two-wire models require only two cables for the connection between 61F-GNR and the Electrode Holder, but still needs three Electrodes. • A Two-wire Electrode Holder must be used. (It has an inbuilt resistance R.) • The Relay Unit must also be for two-wire models. Principles of Operation Principles of Operation P Water supply Pump ON Pump OFF E1 E1 Pump OFF E2 Pump ON E2 (U indicator ON) (U indicator ON) (U indicator OFF) (U indicator OFF) E3 P E3 Water Drainage The pump stops (U indicator ON) when the water level reaches E1 and starts (U indicator OFF) when water level drops below E2. The pump starts (U indicator ON) when the water level reaches E1 and stops (U indicator OFF) when the water level drops below E2. 15 61F-G@N Dimensions Note: All units are in millimeters unless otherwise indicated. 61F-GN, -GNL, -GNH, -GND, -GNR 25 5 14 14 32 3 60 11 5 65 54 10 3.4 Terminal cover 11 9 Nine, M3.5 sems screws 4 min. 5 10 100 70 56 40 50 4 (See note.) 35.4 90 50 39 43.5 4 min. Note: Dimensions are with the DIN rail mounting (sliding) bracket attached. 61F-G1N, -G1NL, -G1NH, -G1ND, -G1NR 61F-G2N, -G2NL, -G2NH, -G2ND, G2NR 61F-IN, - NL, -INH, -IND 25 5 14 14 32 60 3 11 5 65 54 10 3.4 Terminal cover 11 9 Fifteen, M3.5 sems screws 4 min. 10 100 5 70 56 4 (See note.) 65 75 35.4 90 50 39 4 min. 43.5 Note: Dimensions are with the DIN rail mounting (sliding) bracket attached. 16 61F-G@N 61F-G3N, -G3NL, -G3NH, -G3ND, -G3NR, -G3N-NGD 25 5 14 14 32 60 3 11 5 65 54 10 3.4 Terminal cover 11 9 21, M3.5 sems screws Min. 4 10 100 5 70 56 115 125 4 (See note.) 35.4 90 50 39 43.5 Min. 4 Note: Dimensions are with the DIN rail mounting (sliding) bracket attached. 61F-G4N, - G4NL, -G4NH, -G4ND, -G4NR, -G4N-KYD 25 5 32 60 14 14 3 5 11 65 10 3.4 Terminal cover 25, M3.5 sems screws 9 Min. 4 10 100 5 70 56 190 200 4 (See note.) 35.4 90 50 39 43.5 Min. 4 Note: Dimensions are with the DIN rail mounting (sliding) bracket attached. ■ Safety Precautions Refer to Safety Precautions for All Level Controllers. ALL DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527. In the interest of product improvement, specifications are subject to change without notice. 17 Terms and Conditions Agreement Read and understand this catalog. Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. Warranties. (a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. (b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. See http://www.omron.com/global/ or contact your Omron representative for published information. Limitation on Liability; Etc. OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. Suitability of Use. Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases. NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. Programmable Products. Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. Performance Data. Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. Change in Specifications. Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. Errors and Omissions. Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 2015.11 In the interest of product improvement, specifications are subject to change without notice. OMRON Corporation Industrial Automation Company http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2015 All Right Reserved.