Monitoring Relays 1-Phase True RMS AC Over/Under Voltage Types DUB02, PUB02 DUB02 • TRMS AC over/under voltage monitoring relays • Measuring if power supply is within set limits • Measure on own power supply • Measuring ranges: 24, 115, 230 VAC • Power ON delay 1 or 6 s selectable by DIP-switch • Separately adjustable upper/lower level on relative scale • Adjustable delay on alarm or on recovery (0.1 to 30 s) • Programmable latching or inhibit at set level • Output: 8 A SPDT relay N.D. or N.E. selectable • For mounting on DIN-rail in accordance with DIN/EN 50 022 (DUB02) or plug-in module (PUB02) • 22.5 mm Euronorm housing (DUB02) or 36 mm plug-in module (PUB02) • LED indication for relay, alarm and power supply ON PUB02 Product Description Ordering Key even after the end of the alarm condition. Inhibit function can be used to avoid relay operation when not desired (maintenance, transitions). The LED's indicate the state of the alarm and the output relay. Housing Function Type Item number Output Power supply Mounting Output Supply: 24, 115, 230 VAC DIN-rail Plug-in SPDT SPDT DUB 02 C T23 PUB 02 C T23 DUB02 and PUB02 are precise TRMS AC window voltage monitoring relays. The relays monitor their own power supply which is selectable by DIP-switch (24, 115 or 230 VAC). The advantage of using the latch function is that the relay can be kept energized DUB 02 C T23 Type Selection Input Specifications Output Specifications Input Own power supply Output Rated insulation voltage Contact ratings (AgSnO2) Resistive loads AC 1 DC 12 Small inductive loads AC 15 DC 13 Mechanical life Electrical life DUB02: PUB02: Measuring ranges Selectable by DIP-switch 24 VAC 115 VAC 230 VAC Contact input DUB02 PUB02 Disabled Enabled Pulse width Hysteresis A1, A2 (24, 115, 230 VAC) 2, 10 (24, 115, 230 VAC) Upper level -5% to +20% 22.8 to 28.8 V 109 to 138 V 218 to 275 V Lower level -20% to +5% 19.2 to 25.2 V 92 to 121 V 184 to 242 V Terminals Z1, Z2 Terminals 8, 9 > 10 kΩ < 500 Ω > 500 ms ~ 2% of set value - fixed Specifications are subject to change without notice (21.10.00) SPDT relay 250 VAC µ 8 A @ 250 VAC 5 A @ 24 VDC 2.5 A @ 250 VAC 2.5 A @ 24 VDC ≥ 30 x 106 operations ≥ 105 operations (at 8 A, 250 V, cos ϕ = 1) ≤ 7200 operations/h Operating frequency Dielectric strength Dielectric voltage 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs) 1 DUB02, PUB02 Supply Specifications General Specifications (cont.) Power supply Rated operational voltage through terminals: A1 and A2 (DUB02) or 2 and 10 (PUB02) Accuracy Temperature drift Delay ON alarm Repeatability Indication for Power supply ON Alarm ON Dielectric voltage Dielectric voltage Supply to output Rated operational power Overvoltage cat. III (IEC 60664, IEC 60038) 24 VAC ± 20%, 115 VAC ± 20% or 230 VAC ± 20% None 4 kV 4 VA General Specifications Power ON delay Reaction time Alarm ON delay Alarm OFF delay 1 s ± 0.5 s or 6 s ± 0.5 s (input signal variation from -20% to +20% or from +20% to -20% of set value) < 200 ms < 200 ms Output relay ON Environment Degree of protection Pollution degree Operating temperature Storage temperature Housing dimensions DIN-rail version Plug-in version Weight Screw terminals Tightening torque CE-Marking (15 min warm-up time) ± 1000 ppm/°C ± 10% on set value ± 50 ms ± 0.5% on full-scale LED, green LED, red (flashing 2 Hz during delay time) LED, yellow IP 20 3 (DUB02), 2 (PUB02) -20 to 60°C, R.H. < 95% -30 to 80°C, R.H. < 95% 22.5 x 80 x 99.5 mm 36 x 80 x 87 mm Approx. 150 g Max. 0.5 Nm acc. to IEC 60947 Yes Mode of Operation DUB02 and PUB02 monitor the TRMS value of their own power supply. Example 1 (no connection between terminals Z1, Z2 or 8, 9 - Delay ON alarm - N.E. relay) The relay operates and the yellow LED is ON as long as the measured value is within the upper and lower limits. The relay releases after the adjustable time delay when the measured voltage exceeds the upper set level or drops below the lower set level. The red LED flashes until the delay time has expired or the measured value falls off the limits. Example 2 (connection between terminals Z1, Z2 or 8, 9 - latching function enabled - delay on recovery - N.E. relay) The relay operates and the yellow LED is ON as long as the measured value is within the upper and lower limits. The relay releases and latches in alarm position as soon as the measured voltage exceeds the upper set level or drops below the lower set level. Provided that the voltage has dropped below the upper set level (minus hysteresis) or exceeded the lower set level (plus hysteresis) for more than the set delay time, the relay operates when the interconnections between terminals Z1, Z2 or 8, 9 are interrupted. The red LED flashes until the delay time has expired or the measured value falls off the limits. Function/Range/Level and Time Delay Setting Selection of function: DIP-switch selector (1 to 4) 3 Power ON delay 6 ± 0.5 s Power ON delay 1 ± 0.5 s 1 ON Delay ON recovery Delay ON alarm 2 Relay de-energized in normal condition. Relay energized in normal condition. 2 4 Contact input as latch function enable. When the contact is closed, the latch function is activated. Reset of the latch condition occurs when the contact is open or by power down. Contact input as inhibit of alarm enable. When the contact is closed the relay remains in normal position even if the alarm condition occurs. Selection of ranges: DIP-switch selector (5 to 6) Selection of level and time delay: 56 Upper knob: Setting of upper level on relative scale: -5% to +20% of set power supply voltage. 24 VAC ± 20%, 45 to 65 Hz 115 VAC ± 20% 45 to 65 Hz 230 VAC 45 to 65 Hz Centre knob: Setting of lower level on relative scale: -20% to +5% of set power supply voltage. Lower knob: Setting of delay on alarm time on absolute scale (0.1 to 30 s). Specifications are subject to change without notice (21.10.00) DUB02, PUB02 Wiring Diagrams Example 1 Example 1 L L µ Z1 Z2 A1 16 µ 18 9 U 2 8 4 3 U A2 15 10 N 1 N Example 2 Example 2 Latch/inhibit enable L L Latch/inhibit enable µ Z1 Z2 A1 16 µ 18 9 U 8 2 4 3 U A2 15 10 N 1 N PUB02 DUB02 Operation Diagrams Delay ON alarm Delay ON alarm - Latch function Power supply Power supply Upper set level Latch ON Hysteresis Upper set level Hysteresis Lower set level Hysteresis Lower set level Hysteresis 1 or 6 s Relay ON 1 or 6 s Relay ON Red LED ON 1 or 6 s Red LED ON Delay ON recovery Delay ON recovery - Inhibit function Power supply Power supply Upper set level Inhibit ON Hysteresis Upper set level Hysteresis Lower set level Hysteresis 1 or 6 s Lower set level Hysteresis Relay ON 1 or 6 s Red LED ON Relay ON Red LED ON Specifications are subject to change without notice (21.10.00) 3