Rockwell Automation SA500 AC Power Modules - Manual (Page 23)

Power Module Mechanical Description 2-11
If any of these events occurs, the PMI will wait for 100 msec and then turn off the MCR
output. If the RPI signal is removed, the MCR output will be turned off and gate power
will be removed under hardware control within approximately 0.5 second to provide an
additional level of protection.
The user has the option of having an M-contactor (i.e., an output contactor) on the
output of the Power Module. This option is available during UDC parameter
configuration. The M-contactor is controlled by the MCR output, which is under the
control of the PMI processor. If the choice is made to connect the MCR to the output
contactor, the contacts must be wired to the AUX IN1/MFDBK input. The PMI will then
wait for this signal to turn on before executing the control algorithm. The status of the
AUX IN1/ MFDBK input is reported in register 201/1201, bit 1. If this configuration
choice is not made, the AUX IN1 input can be used for any user-designated purpose.
The status of the drive I/O is indicated in UDC register 201/1201 and by eight LEDs on
the module faceplate. In the event of a power loss or if a system reset command is
initiated by the PMI, all outputs are turned off.
The Drive I/O connector pinout is shown in figure 2.6.
Figure 2.7 shows the auxiliary input interface circuit.
The run permissive input (RPI) circuit is shown in figure 2.8.
Figure 2.6 – Drive I/O Connector Pinout
Figure 2.7 – Auxiliary Input Circuit
RPI IN (+)
AUX IN2 (+)
AUX IN1/MFDBK (+)
AUX IN3 (+)
AUX IN4 (+)
AUX IN5 (+)
MCR OUT (+)
AUX OUT (+)
Key Pin
A
C
E
H
K
M
P
S
U
B
D
F
J
L
N
R
T
V
RPI IN (-)
AUX IN1/MFDBK (-)
AUX IN2 (-)
AUX IN3 (-)
AUX IN4 (-)
AUX IN5 (-)
MCR OUT (-)
AUX OUT (-)
Not Used
330 15K
182
DIGITAL
OUT TO
MICROPROCESSOR
.1uF
AUX INPUTS