Rockwell Automation 1772-LV,D17726.6.1 A and I MNL MINI-PLC-2/15 PROCESSO - Manual (Page 75)

Maintenance and Troubleshooting
Chapter 5
5Ć5
Figure 5.1
Troubleshooting Flowchart
START
IF NECESSARY, DISABLE
I/O POWER, USE
EMERGENCY STOP SWITCH
REPLACE MINI-PLC-2/15
PROCESSOR RELOAD PROGRAM
IF NECESSARY AND RECHECK
CONTROLLER
REPLACE I/O POWER CABLE
RELOAD PROGRAM IF
NECESSARY RECHECK CONTROLLER
REMOVE SYSTEM POWER
REPLACE POWER SUPPLY
RELOAD PROGRAM IF
NECESSARY AND RECHECK
CONTROLLER
CORRECT LINE-VOLTAGE
RECHECK CONTROLLER
D
C
B
A
YES
NO
YES
NO
YES
YES
NO
NO
NO
YES
NO
YES
YES
NO
10138-I
CONTROLLED IN RUN OR RUN/PROG
MODE OUTPUTS DO NOT BEHAVE AS
PROGRAMMED
IS
LINEĆVOLTAGE
WITHIN NORMAL
RANGE?
IS
RUN
INDICATOR
ON?
IS
PROCESSOR
INDICATOR
ON?
IS
MEMORY
INDICATOR
ON?
ARE
PWER SUPPLY
OUTPUT VOLTAGES
CORRECT?
ARE
VOLATAGES
THROUGH I/O
POWER CABLE
CORRECT?
IS
DC ON
INDICATOR
ON?