Sequence signal terminal block (tb3) – Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual User Manual
Page 29
Sequence Signal Terminal Block (TB3)
As shown in the figure in page 2-14, there is a sequence signal
terminal block (TB3) on the Regulator Board. The following table
provides the information on each terminal of TB3.
Description
Enter the supplemental contact signal (normally open contact) of the main magnetic contactor.*
The reset signal (+24 VDC) is used to reset fault. Close this reset signal as required.*
Enter the RUN signal (+24 VDC)*.
0 V of +24 VDC power.
+24 VDC power (rating : 24 VDC/0.2 Amps).
Common for IP and RDY signals.
This is a contact signal that is turned ON during instantaneous power loss (contact rating : 30 VDC/
50 mA).
This is a contact signal that is turned ON while the unit is ready for operation (contact rating : 30 VDC/
50 mA).
This is a contact signal that opens while fault occurs (contact rating : 250 VAC/1 Amp or 30 VDC/
1 Amp).
Name of Terminal
Sequence Input
Signals
Power for
Sequence Signals
Sequence Output
Signals
Symbol
MC
RST
PWR
0 V
24 V
COM
IP
RDY
FR, FR
MC
MC
24V
8720MC-RPS
4.7K
1K
RST
24V
8720MC-RPS
4.7K
1K
PWR
24V
8720MC-RPS
4.7K
1K
24V
0V
COM
IP
+VC
0VC
IP
4.64K
Load
8720MC-RPS
24V
0V
COM
RDY
+VC
0VC
RDY
4.64K
Load
8720MC-RPS
FR
FR
8720MC-RPS
* Because driving current of sequence input signals
is 5mA and below, use a contact of which
minimum applicable load is 5mA and below.
* Because driving current of sequence input signals
is 5mA and below, use a contact of which
minimum applicable load is 5mA and below.
* Because driving current of sequence input signals
is 5mA and below, use a contact of which
minimum applicable load is 5mA and below.
2-17
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