Monitoring Relays 1-Phase True RMS AC/DC Over and Under Voltage Types DUC01, PUC01 DUC01 * TRMS AC/DC over+under, over+over or under+under voltage monitoring relays * Selection of measuring range by DIP-switches * Measuring ranges from 2 to 500 V AC/DC * Adjustable voltage on relative scale * Adjustable hysteresis on relative scale * Adjustable delay function (0.1 to 30 s) * Programmable latching or inhibit at set level * Output: 1 or 2 x 8 A SPDT relay N.D. or N.E. selectable * For mounting on DIN-rail in accordance with DIN/EN 50 022 (DUC01) or plug-in module (PUC01) * 45 mm Euronorm housing (DUC01) or 36 mm plug-in module (PUC01) * LED indication for relay, alarm and power supply ON * Galvanically separated power supply PUC01 Product Description Ordering Key DUC01 and PUC01 are precise TRMS AC/DC over+under, over+over or under+under voltage (selectable by DIP-switch) monitoring relays. The voltage levels are adjustable separately and have their own time delay. Housing Function Type Item number Output Power supply Range Owing to the built-in latch function, the ON-position of the relay output can be maintained. 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. DUC 01 D B23 500V Type Selection Mounting Output Supply: 24 to 48 VAC/DC Supply: 115/230 VAC DIN-rail Plug-in 2xSPDT SPDT DUC 01 D D48 500V PUC 01 C D48 500V DUC 01 D B23 500V PUC 01 C B23 500V Input Specifications Output Specifications Input (voltage level) DUC01 PUC01 Measuring ranges Direct Selectable by DIP-switch 2 to 20 V AC/DC 5 to 50 V AC/DC 20 to 200 V AC/DC 50 to 500 V AC/DC Output Terminals Y1, Y2 Terminals 5, 7 Internal resist. Max. volt. > 500 k > 500 k > 500 k > 500 k 350 V 350 V 600 V 600 V Max. voltage for 1 s Note: The input voltage cannot raise over 300 VAC/DC with respect to ground (PUC01 only) Contact input DUC01 PUC01 Disabled Enabled Latch disable 1000 V Rated insulation voltage Contact ratings (AgSnO2) Resistive loads AC 1 DC 12 Small inductive loads AC 15 DC 13 Mechanical life Electrical life 2 x SPDT relays (DUC01) 1 x SPDT relays (PUC01) 250 VAC 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 = 1) 7200 operations/h Operating frequency Dielectric strength Dielectric voltage 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 s) Terminals Z1, Y1 Terminals 8, 9 > 10 k < 500 > 500 ms Specifications are subject to change without notice (10.06.10) 1 DUC01, PUC01 Supply Specifications General Specifications (cont.) Power supply Rated operational voltage through terminals: A1, A2 or A3, A2 (DUC01) 2, 10 or 11, 10 (PUC01) D48: Indication for Power supply ON Alarm ON B23: Dielectric voltage Supply to input Supply to output Input to output Rated operational power AC DC Overvoltage cat. III (IEC 60664, IEC 60038) 24 to 48 VAC 15% 45 to 65 Hz, insulated 115/230 VAC 15% 45 to 65 Hz, insulated DC supply AC supply 2 kV 4 kV 4 kV 4 kV 4 kV 4 kV 5 VA 3W General Specifications Power ON delay Reaction time Alarm ON delay Alarm OFF delay Accuracy Temperature drift Delay ON alarm Repeatability 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) < 100 ms < 100 ms (15 min warm-up time) 1000 ppm/C 10% on set value 50 ms 0.5% on full-scale Output relay ON Environment Degree of protection Pollution degree Operating temperature Storage temperature Housing Dimensions DUC01 PUC01 Material Weight Screw terminals Tightening torque Product standard Approvals CE Marking EMC Immunity Emissions LED, green LED, red (flashing 2 Hz during delay time) 1 or 2 x LED, yellow (EN 60529) IP 20 3 (DUC01), 2 (PUC01) -20 to 60C, R.H. < 95% -30 to 80C, R.H. < 95% 45 x 80 x 99.5 mm 36 x 80 x 94 mm PA66 or Noryl Approx. 250 g Max. 0.5 Nm acc. to IEC 60947 EN 60255-6 UL, CSA L.V. Directive 2006/95/EC EMC Directive 2004/108/EC According to EN 60255-26 According to EN 61000-6-2 According to EN 60255-26 According to EN 61000-6-3 Mode of Operation DUC01 and PUC01 monitor both AC and DC over+under, over+over or under+under voltage. Example 1 (no contact input under+over voltage - 2 x SPDT relays (1 x SPDT for PUC01)) DUC01: One relay operates when the voltage drops below the under voltage set point for more than the respective delay time. It releases when the voltage exceeds the set level plus the set hysteresis. The other relay operates when the voltage exceeds the over voltage set point for more than the respective delay time. It releases when the voltage drops below the set level minus hysteresis (the 2 hysteresis is the same for both set levels). PUC01: The relay operates when the voltage drops below the under voltage set level for more than the respective set delay time or when it exceeds the over voltage set level for more than the respective set delay time. The relay releases when the voltage exceeds the under voltage set level plus hysteresis and it drops below the over voltage set level minus hysteresis (the hysteresis is the same for both set levels). Example 2 (latch enabled active under+ under voltage - 2 x SPDT relays (1 x SPDT for PUC01)) DUC01: Each relay operates and latches when the voltage drops below the respective set level for more than the respective delay time. Provided that the voltage has exceeded the respective set level (see hysteresis), each relay releases when the contact input's connection is interrupted. PUC01: The relay operates when the voltage drops below the higher set level for more than the respective delay time. Provided that the voltage has exceeded the respective set level plus hysteresis, the relay releases when the contact input is opened. Example 3 (inhibit enable active - over+ over voltage - DPDT relay (1 x SPDT for PUC01)) Provided that the contact input is opened, the relay operates when the voltage exceeds the lower set level for more than the respective delay time. It releases when the voltage drops below the lower set level (see hysteresis) or when the contact input's pins are connected. Note: When the inhibit contact is opened, if the input signal is already in alarm position, the delay time needs to elapse before relay(s) activation. Specifications are subject to change without notice (10.06.10) DUC01, PUC01 Function/Range/Level and Time Delay Setting Adjust the input range setting the DIP switches 1 and 2 of the main black selector as shown below. Select the desired function setting the DIP switches 3 to 6 of the black selector and 1, 2 of the small red selector as shown below. To access the DIP switches open the grey plastic cover as shown below Upper knob: Setting of hysteresis on relative scale: 0 to 30% on set value. Selection of level, time delay and hysteresis: Set Point 2 (SP2) monitoring function ON: Over voltage OFF: Under voltage Relay(s) coupling ON: 2 x SPDT (DUC01 only) OFF: 1 x DPDT (DUC01, PUC01) Centre knobs: Voltage level setting on relative scale: 10 to 110% on full scale. Lower knobs: Setting of delay on alarm time on absolute scale (0.1 to 30 s). Measuring range ON OFF: 2 to 20 V AC/DC OFF OFF: 5 to 50 V AC/DC ON ON: 20 to 200 V AC/DC OFF ON: 50 to 500 V AC/DC Relay(s) working mode ON: Normally De-Energized (ND) OFF: Normally Energized (NE) Power ON delay ON: 6 s 0.5 s OFF: 1 s 0.5 s Contact input ON: Latch function enable OFF: Inhibit function enable Set Point 1 (SP1) monitoring function ON: Over voltage OFF: Under voltage Operation Diagrams Over+over voltage - N.D. relay(s) Over+over voltage - Latch - N.D. relay(s) Over+under voltage - N.D. relay(s) Over+under voltage - Latch - N.D. relay(s) Specifications are subject to change without notice (10.06.10) 3 DUC01, PUC01 Operation Diagrams (cont.) Under+under voltage - N.D. relay(s) Wiring Diagrams 24/48 VAC/DC 230 VAC 115 VAC 24/48 VAC/DC 230 VAC 115 VAC 24/48 VAC/DC 230 VAC 115 VAC 24/48 VAC/DC 230 VAC 115 VAC DUC01 PUC01 Dimensions Plug-in DIN-rail 80 63 63 28.5 4 90 36 83.5 80 94 99.5 45 28.5 Specifications are subject to change without notice (10.06.10)