GAL GALaxy eHydro Manual page 116

GALaxy eHydro Elevator Controller
Table 6-0: Main CPU Faults
Faults
DT Limit Fault
DTc Limit Fault
DZ Off Redundancy
Ck
EE Tst EE1
Failed OFF
EE Tst EE1
Failed ON
EE Tst EE2
Failed OFF
Description
DT Limit from the NTS
processor turned off
before the normal
slowdown point was
reached.
DTc Limit from the
Main CPU turned off
before the normal
slowdown point was
reached.
The door zone input
went off during the
redundancy check.
Electric Eye Test.
Freight door electric
eye input EE1 failed
off.
Electric Eye Test.
Freight door electric
eye input EE1 failed
on.
Electric Eye Test.
Freight door electric
eye input EE2 failed
off.
Section 6 – Main CPU Faults & Detailed Faults
Possible Cause/Suggested Fix
• The DT limit from the NTS processor is too far from the
bottom landing. Adjust the DT limit closer to the landing by
changing the NTS DT limit count and the relearning the
bottom floor.• The slowdown position is set too close to the
bottom landing. Adjust the bottom floor slowdown count in
the Hoistway Table Floor & SD Counts menu.
• The DT limit from the Main CPU is too far from the bottom
landing. Adjust the DTc limit closer to the landing by
changing the NTS DT limit count and the relearning the
bottom floor.
• The slowdown position is set too close to the bottom
landing. Adjust the bottom floor slowdown count in the
Hoistway Table Floor & SD Counts menu.
• Check that the elevator is holding in the door zone.
• The DZ/DZp output from the SAFETY PAL comes from the
combination of the following signals: NTS dz output, NTS
communicating with APS selector, Main CPU dz output and
Main CPU communicating with APS selector. A loss from any
of these signals could cause the DZ/DZp output from the
SAFETY PAL to turn off unexpectedly. Check for faults
related to the APS selector.
• Verify that the electric eye input EE1 pulses on during the
electric eye test.
• Possible faulty electric eye device.
• Possible faulty EE1 input - replace the input.
• Verify that the electric eye input EE1 is off before the
electric eye test.
• Possible faulty electric eye device.
• Possible faulty EE1 input - replace the input.
• Verify that the electric eye input EE2 pulses on during the
electric eye test.
• Possible faulty electric eye device.
• Possible faulty EE2 input - replace the input.
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