Allen-Bradley SMC-50, User Manual

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66 Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019
Chapter 2 Installation
Control Power
Control Voltage
The SMC-50 control module accepts a control power input of 100…240V AC,
(-15 / +10%), 1-PH, 50/60 Hz. Refer to the product nameplate to verify the
control power input voltage.
Connect control power to the module at terminals 1 (L1+)and 2 (L2-) (see
Figure 35 ). The control power requirement for the control module is 75 VA.
Control Wiring
Table 4 provides the control terminal wire capacity and the tightening torque
requirements. Each control terminal will accept a maximum of two wires.
Table 4 - Control Wiring and Tightening Torque
Control Terminal
Designations
Standard Control Terminal Block
SMC-50 control modules come standard with two 24V DC digital on/off inputs
and two relay outputs for auxiliary control functions. The standard digital I/O
wiring terminal block is on the upper right portion of the SMC-50 module. The
terminal block is removable.
Control Wiring Specifications
The following table provides the specifications for all SMC-50 module control
wiring and option module terminal blocks. Each wiring terminal accepts a
maximum of two wires.
Table 5 - Control Wiring Specifications
Wire Size Torque
0.70…2.5 mm

(#18 to #14 AWG) 0.6 N•m (5 lb•in.)
Wire Size 0.2…2.5 mm
2
(#24…14 AWG)
Maximum Torque 0.8 N•m (7 lb•in.)
Maximum Wire Strip Length 7 mm (0.27 in.)
Screw Type M3 Slotted
SHOCK HAZARD: To prevent the risk of electrical shock, disconnect all power
sources from the controller and option module before you install or service it.
Install the controller and option module in a suitable enclosure and keep it
free of contaminants.