Rockwell Automation SA500 AC Power Modules - Manual (Page 22)

2-10 SA500 Power Modules
2.2.4 Drive I/O Connector
The connector labeled “DRIVE I/O” is used for digital I/O connections to standard
drive-related signals, such as M-contactor status, the run permissive input (RPI) for
the drive, or for other user-designated functions. Six digital inputs and two digital
outputs are provided. Five of the inputs (AUX IN1 to AUX IN5) and one of the outputs
are user-programmable.
The digital drive I/O operates with 115VAC (50/60Hz) nominal line voltage. All input
and output channels have isolated commons with an isolated voltage rating limited to
150VAC. All inputs and outputs have isolation voltage ratings of 1500 volts between
the I/O and the PMI Regulator's power supply. See figures through for the input and
output circuit diagrams.
The RPI input and the MCR output are interlocked in hardware on the module. The
MCR output is activated only when the RPI signal is asserted (by the user) and the
MCR output is being commanded on by the PMI. The PMI will begin the process to
turn off the MCR output when any of the following conditions occurs:
• The RPI input signal is removed
• A drive fault occurs
• The torque control algorithm is turned off (TRQ_RUN = 0)
Figure 2.5 – Analog Input Circuit
+
–
312K
+15 V
20K
ANALOG+
1.04M
1K
1.04M
ANALOG -
AGND
TO A/D
SUBSYSTEM
5600 pF
ANALOG SHIELD
.33 µ F
-15 V
DGND AGND
.33 µF
10K
THESE COMPONENTS
ARE ON THE PMI
REGULATOR
THIS CONNECTION
IS MADE WITH THE
DC/DC CONVERTER
AGND DGND
312K
AGND