Sec-5.1
Section 5: Troubleshooting
The GCL-MT operators include a self-diagnostic circuit board using troubleshooting LED indicators to signal
the technician of a problem.
TROUBLESHOOTING LED’s
HOIST
INTERLOCK
EXTERNAL
INTERLOCK
+24VDC
STB
ENABLE
INDICATION
OFF
STB Disabled
ON
STB Enabled
ON
ON
ON
Normal Operating Condition
OFF
ON
ON
Hoist Interlock Switch Open:
• Hoist release requires reset
• Hoist interlock connector not plugged in
• Hoist interlock defective
OFF
OFF
ON
External Interlock Open
OFF
OFF
OFF
Power Supply Problem:
• Check AC power supply
• Check main power fuse
• Check secondary fuse (2A)
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STB
ENAB
+ 24
VAC
EXT
INTLK
HOIST
INTLK
TROUBLESHOOTING
LEDs
STB
ENAB
+ 24
VDC
EXT
INTLK
HOIST
INTLK
DETAIL
Содержание GCL-MT
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