SX
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Service and Maintenance Manual 3-36 960714-02B © 2007 I2407
SECTION 3 – COMPONENT REPAIR
ELECTRICAL COMPONENTS
SOLID STATE RELAY (con’t)
5. Set your DVOM to a range capable of
measuring continuity. Contact the black probe
to the red colored terminal block in the
electrical area and the red probe to the number
3 contact on the Solid State Relay as shown in
(Figure 3-99).The DVOM should indicate
continuity.
6. With your DVOM set to test for continuity,
contact the black probe to pin 14 on the Y
Breakout Module in the electrical area, and the
red probe to pin 4 of the Solid State Relay as
shown in (Figure 3-100). The DVOM should
indicate continuity, if it does proceed to the
Incoming Power section.
7. If the tests in steps 5 and 6 show in continuity,
there is a loose connection between the Solid
State Relay and a terminal block. Troubleshoot
the number 3 and 4 connections looking for
shorts, disconnects or frayed wires.
Incoming Power
1. Reconnect all power to the machine and turn
on.
Note: This procedure involves testing high
voltages. Only qualified personnel familiar with
testing electronics should perform this
procedure.
Figure 3-99. Pin 3 on Solid State Relay
Figure 3-100. Solid State Relay Control
USE EXTREME CAUTION WHILE SERVICING A
MACHINE WHILE POWER IS APPLIED.
UNEXPECTED MACHINE STARTUP CAN
CAUSE SERIOUS INJURY OR DEATH.
WARNING
DO NOT ATTEMPT TO SERVICE THE MACHINE
DURING NORMAL OPERATION. KEEP HANDS
AND ARMS CLEAR OF MOVING PARTS.
WARNING
WHEN TESTING ELECTRICAL COMPONENTS
WHILE POWER IS APPLIED TO THE MACHINE,
USE PROPER TROUBLESHOOTING
TECHNIQUES TO AVOID ELECTRICAL SHOCK.
WARNING