EP Equipment LIST JX0, Service Manual

Page: 127 / 206

REV. 07/2019
ELECTRICAL SYSTEM
8
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8.10.4 Control Circuit Troubleshooting
Enable Switch Button Control Circuit
(Figure 50529)
Check if the circuit is broken by using a multi-
meter:
-
-
-
Set the multimeter to ON-OFF;
Check if #124/#115/#116 circuit (circuit
between enable switch button and controller)
is conducted;
Check if #18 circuit (circuit between lifting
button and GND) is conducted;
Testing
-
-
Check if the push button switch circuit is
connected;
Carry out ON/OFF test to the push button
switch with a multimeter:
push button switch at original position, broken
circuit;
press the button (key switch to “ON”; emerg-
ency stop switch to “Pulled-out” status), the
circuit is conducted.
- Enter TESTER Menu to check the status of
the switches:
“ADD LOW SW”,press the lowering button, if
the display does not change, then it indicates
the lowering button or its circuit failure;(see
Section 8.13)
“ADD LIFT SW”,press the lifting button if the
display does not change, then it indicates the
lifting button or its circuit failure;
(see Section 8.13)
Checking
- Check if the push button switch and the
appearance of cables are in good condition,
and if the plug connection is secure.
8.10.3 Checking and Testing
Platform Lifting switch
Platform Lowering switch