Eaton ELC-PC12NNDR/T Instruction Sheet

Also see for ELC-PC12NNAR: Basic training manual Operation manual Instruction sheet

There are two types of DC type wiring: SINK and SOURCE, defined as follows:SINK Mode SOURCE Mode+24V 0VDC Power SupplyS/S X0 X1 X2Sink mode+24V 0VDC Power SupplyS/S X0 X1 X2Source mode5.5 AC Type WiringInput Circuit Connection 110V AC Input SpecificationsCOM X0 X1 X2ELC-12PCNNAR85~132VAC50/60HzInput voltage 100~120VAC (-15%~+10%)Input impedance 21Kohm/50Hz 18Kohm/60HzInput current 4.7mA 100VAC/50Hz6.2mA 110VAC/60HzOFF ON/ON OFFШ Ш 80V 3.8mA/30V 1.7mAResponse time OFF ON:30ms ON OFF:50msШ ШCircuit isolation/Operation indication Photocoupler/LED On5.6 Output Point Wiring Output point wiringY0RYLEDC0LOADPOWERELC-**-**NN*RRELAY OUTPUT1. ELC-PC series have two output modules, relay and transistor. See“Function Specifications” for their specifications.2. Please watch out the connection of common terminals whilewire theoutputs. For example, when wiring ELC-PC12NNDR/T,outputterminal Y0 uses one common terminal C0, Y1 uses C1, and Y2~Y3share C2, as shown below:C0 Y0 Y1 Y2C1 Y3C2RELAYC0 Y0 C2 Y2 Y3C1 Y1TransistorWhen output points are enabled, their corresponding indicators onthe front panel will be on.3. Isolation circuit: The optical coupler is used to isolate signalsbetween the circuit inside ELC and input modules.Y0LEDC0TRANSISTOR OUTPUTLOADELC-**-**NN*T< 0.5ATrig g er c irc uit The Relay Output Circuit Wiring2315C0 Y0 Y1C1 Y2 Y3C24MC19327861 Flywheel diode: To extend the life span of contact*12 Emergency stop: Uses external switch3 Fuse: Uses 5 ~ 10A fuse at the shared terminal of output contactsto protect the output circuit.4 Varistor: To reduce the interference on AC load*2:5 Empty terminal: no in use6 DC power supply7 AC power supply 8 Incandescent light (resistive load)9 Manually exclusive output: Uses external circuit and forms an interlock, together with ELC internal program, to ensure safeprotection in case of any unexpected errors. *3*1: For switching direct current on inductive loads, a reverse-current protection diode should be installed in parallelwith the load. The relay contact life decreases significantly if this is not done.The reverse-current protection diode needs to satisfy the following specifications.- The diode is rated for maximum reverse voltage of 5~10 times the load voltage.- The forward current is more that the load current*2: For switching AC on inductive loads, a surge absorber (0.1uF + “100ohm to 120ohm”) should be installed inparallel with the load. The relay contat life decreases significantly if this is not done.*3: Ensure all loads are applied to the same side of each ELC output, see above figure. Loads which shouldNEVER simultaneously operate(e.g. direction control of a motor), because of a critical safety situation, should notrely on the ELC’s sequencing alone. Mechanical interlocks MUST be fitted to all critical safety circuits. The Transistor Output Circuit WiringMC1231C0 Y0 Y1 C2 Y2 Y34534C11 DC power supply2 Emergency stop3 Circuit protection fuse4 Flywheel diode + inductive load5 Manually exclusive output: Uses external circuit and forms aninterlock, together with ELC internal program, to ensure safeprotection in case of any unexpected errors. *1*1: Transistor outputs use internal zener diode(39V) as protection circuitry. When driving the inductive load withtransistor output, a reverse-current protection diode can be installed in parallel with the load if necessary.The reverse-current protection diode needs to satisfy the following specifications.

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