Rockwell Automation 1771-PM , D17716.5.18 U MNL 1771-PM CLUTCH/BRAKE MOD User Manual

Page 80

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Field Wiring Arm Connections

Chapter 6

6Ć28

continuous: Each ON/OFF transition of the ARM CONTINUOUS

button starts a 5-second period in which you must press all active RUN
buttons to start continuous stroking as shown by this indicator.
Pressing the ARM CONTINUOUS button again within 5 seconds (after
the transition) starts another

Important: Press the momentary ARM CONTINUOUS button less than
3 seconds. Pressing it for a longer time may inhibit its function and
require you to release and press it again.

MICRO-INCH - turns on when voting processors detect an error in
micro-inch mode and display a diagnostic message code which is
displayed by means of the diagnostic message display. Use look-up table
7.C to determine the fault or error.

You can use the micro-inch output in two ways:

to turn on the MICRO-INCH indicator
to set the most significant bit in a 9-bit binary output.

Diagnostic codes for micro-inch mode are 9-bit binary (3-digit hex) with
1 as the first digit (Figure 6.14). Diagnostic message codes for all other
modes are 8-bit binary (2-digit hex). (Figure 6.13)

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