Rockwell Automation Publication 1560F-Um001A-En-P - June - Allen-Bradley SMC-50 User Manual

Figure 35 - Standard Control Terminal Block Identification
12 10
11
24V DC Inputs
(1) See the controller nameplate to verify the control power ratings (120/240V AC or 24V DC).
ATTENTION: IN1 DC (terminal 11) and IN2 DC (terminal 10) are 24V DC
inputs on controllers rated 120/240V AC and on controllers rated 24V DC.
Voltages that exceed the specified input range may cause damage to the
controller.
Terminal Number Description
(1) (2)
1 Control Power +L1
(1)(2)
2 Control Power Common -L2
3 Ground — To connect to the system/control ground point.
(1)(3)
4 Auxiliary Relay Contact #1—rated 3 A @ 120V AC, 1.5 A @ 240V AC
(1)(3)
5 Auxiliary Relay Contact #1—rated 3 A @ 120V AC, 1.5 A @ 240V AC
(1)(3)
6 Auxiliary Relay Contact #2—rated 3 A @ 120V AC, 1.5 A @ 240V AC
(1)(3)
7 Auxiliary Relay Contact #2—rated 3 A @ 120V AC, 1.5 A @ 240V AC
8 DC Internal I/O Power, DC Common
9 Enable I/O
(1)(4)
10 Input #2 (24V DC) (range 15...30V DC)
(1)(4)
11 Input #1 (24V DC) (range 15...30V DC)
12 +24V DC Internal I/O Power
(1) RC snubbers are required when inductive loads are connected to terminal.
(2) See the controller nameplate to verify the control power ratings (120/240V AC or 24V DC)
(3) When set to external bypass mode, the auxiliary contact is used to control a properly sized external contactor and overload once
the motor is at full speed.
(4) Do not connect any additional loads to this terminal. Parasitic loads may cause problems with operation.

Rockwell Automation Publication 1560F-UM001A-EN-P - June 2019

9
8 7 6 5
Aux 2
Relay Outputs
Installation Chapter 2
4 1
3 2
+L1
-L2
Aux 1
Control Power
(1)
and Ground
67