SM20 Level controller or high power interface module Primary output can directly control motors up to 2HP cosF 0.4-0.5 single phase 2 SPCO relay outputs 12Vac sensor voltage 1, 2 or 3 sensor inputs 240 or 415Vac supply DIN rail mounting Technical Specification Supply Voltage Sensor Voltage Sensor Inputs Power supply 240/415 Vac. Two out-puts: Main output SPCO 20(8) Ampere 250V Secondary output SPCO 10(4) Ampere 250V automatic/manual switch Output 2 SPCO 750 not approved 250 not approved A A A 20 10 8 10 10 4 Inputs 1, 2 or 3 Outputs 2 Terminal Assignment Mechanical Diagram 24 23 22 21 20 19 18 17 16 15 14 13 SM20 Interface Module AUTO MAN The module can be used as a dry-running protection, with a pressure switch or filling level control switch, to start and stop a pump. VA W V V Output 1 SPCO 1500 560 250 28 Other versions can be made for particular applications. Please contact Cynergy3 with your requirements. LEVEL It works with all kind of level switches, including conductive probes, as well as pressure switches or other limit switches. Standard Parts SM20 POWER One level switch can be connected for an alarm or two level switches to start and stop a submersible pump or a solenoid valve for emptying/filling function Output ratings Contact Form Switching Power Max ac Switching Power Max dc Switching Voltage AC Max Switching Voltage DC Max Switching Current Max Resistive (n/o contact) (n/c contact) Switching Current Max Inductive PUMP The SM20 is a versatile level control or interface module that can also be used in many other process control applications. V 240 or 415ac V 12Vac switch contacts or conductive probes LED indicators for: power supply, low level and output on. Made in Italy 90 mm 1 Cynergy3 Components Ltd. 7 Cobham Road Ferndown Industrial Estate Wimborne, Dorset BH21 7PE Telephone +44 (0) 1202 897969 2 3 4 5 6 7 53 mm 8 9 10 11 12 1 3 4 9 10 11 13 14 15 19-20 21-22 23 24 Supply Neutral Supply Live 240Vac Supply Live 415Vac Output 1 nc contact Output 1 no contact Output 1 common Output 2 no contact Output 2 common Output 2 nc contact Low voltage input sensor Sensor common input Sensor minimum level Sensor maximum level Low voltage input 19-20 for pressure switch with contacts closed at minimum pressure or level switch with contacts closed when level low. NB These terminals must be bridged if no sensor is connected. Email:[email protected] ISO9001 C E R T I F I E D www.cynergy3.com © 2012 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited. Level controller or high power interface module The SM20 can be used for many process control functions, including: Dry running control with 2 level switches Dry running control with 1 level switch Dry running control with conductive probes Pump control by pressure switch Pump control by level switch Automatic/manual control selector “No water” alarm or secondary control output Troubleshooting Pump does not start, green LED off No power to module Pump does not start, yellow LED on check connections 9-10-11 for pump supply Pump does not start, yellow LED off Check link between 19-20. Check pressure or level switch, if fitted. Check system has not already reach maximum pressure or level Pump does not start, red LED on No water in supply tank. Check maximum level switch is correctly installed. Check terminals 21-22-23-24 Pump does no stop Check the Auto/Man selector. Check that pressure or level switch, on 19-20, functions correctly. Top tank switch (NC when level low) Example: Rainwater supply Secondary or Alarm circuit Filling a vented roof tank from a rainwater tank. The pump will operate when the roof tank level is not at max level and the water in the rainwater tank is above the low level. The secondary output relay will operate, if the level in the rainwater tank drops to the low level, and opens a solenoid valve to supply water from the mains water supply, which will remain operated until the rainwater tank fills to the high level. The illustration is only for 220/240Vac supply, which is connected to terminals 0 (neutral) and 3 (live). NC 24 23 22 21 20 19 18 17 16 15 14 13 AUTO MAN LEVEL PUMP POWER SM20 Interface Module MADE IN ITALY 1 2 3 4 5 6 7 8 9 10 11 12 Solenoid valve nc Common no High level switch (NC when level high) Supply pipe X Mains water Pump up to 2HP Low level switch (NC when level high) Rainwater tank Link Example: Sump pump to drain 24 23 22 21 20 19 18 17 16 15 14 13 Low level switch (NC when level high) AUTO MAN LEVEL POWER SM20 Interface Module PUMP This will pump out a sump from a high level down to a low level. The pump will be started when the level in the sump reaches the high level and will continue to pump until the level falls to the low level. The pump can also be operated manually using the switch on the module. To drain The illustration is only for 220/240Vac supply, which is connected to terminals 0 (neutral) and 3 (live). High level switch (NC when level high) MADE IN ITALY 1 2 3 4 5 6 7 8 9 10 11 12 nc Common no Pump Sump tank NB The diagrams shown above are simplified illustrations of how the module may be used and do not include any necessary safety devices, such as fuses or thermal cutouts, or statutory requirements for installation of such electrical equipment. ISO9001 C E R T I F I E D www.cynergy3.com © 2012 Cynergy3 Components, All Rights Reserved. Specifications are subject to change without prior notice. Cynergy3 Components and the Cynergy3 Components logo are trademarks of Cynergy3 Components Limited.