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Rockwell Automation Publication 8720MC-RM001K-EN-P - September 2018
Chapter 4
Connector Data and Feature Descriptions
Sequence Signal Terminal
Block
The following table provides information on each of the TB3 terminals.
Table 13 - Sequence Signal Terminal Block (TB3) Descriptions
Function
Signal
Description
Sequence Input Signals
MC
Enter the supplemental contact signal (normally open contact) of the main magnetic contactor.
(1)
RST
The reset signal (+24 VDC) is used to reset faults. Close the reset signal as required.
PWR
Enter the RUN signal (+24 VDC).
Power for Sequence Signals
0V
0 V of +24V DC power
24V
+24V DC power (rating: 24V DC/0.2 Amps)
Sequence Output Signals
COM
Common for IP and RDY signals.
IP
This is a contact signal that is turned ON during instantaneous power loss (contact rating: 30V DC/ 50 mA).
RDY
This is a contact signal that is turned ON when the unit is ready for operation (contact rating: 30V DC/ 50 mA).
FR, FR
This is a contact signal that opens when the fault occurs (contact rating: 250V AC/1 Amp or 30V DC/ 1 Amp).
(1) Because the driving current of sequence input signals is ≤5 mA, use a contact with a minimum applicable load is ≤5 mA.
2.2K
MC
MC
1K
24V
8720MC-RPS
2.2K
RST
1K
24V
8720MC-RPS
2.2K
PWR
1K
24V
8720MC-RPS
+VC
Load
24V
0V
COM
0VC
IP
IP
4.64K
8720MC-RPS
+VC
Load
24V
0V
COM
0VC
IP
RDY
4.64K
8720MC-RPS
FR
8720MC-RPS
FR