GALaxy eHydro Elevator Controller Section 6 – Main CPU Faults & Detailed Faults
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Table 6-2: Faults from the Hall Call Driver Board Devices on the GRCAN Serial Port
Possible Cause/Suggested Fix
HCB rx fault up to
above floor
• Receiver on board is bad – replace device
• Cable is bad or disconnected
• Cables going to wrong port (i.e., switched to above and to below)
• Transmitter from device above is bad.
HCB rx fault down
from below floor
• Receiver on board is bad – replace device
• Cable is bad or disconnected
• Cables going to wrong port (i.e., switched to above and to below)
• Transmitter from device below is bad.
HCB rx fault down
from below floor
• Receiver on board is bad – replace device
• Cable is bad or disconnected
• Cables going to wrong port (i.e., switched to above and to below)
• Transmitter from device below is bad.
• Button is physically stuck – fix button
• Input is stuck on or shorted – replace device
• Button is physically stuck – fix button
• Input is stuck on or shorted – replace device
• Button is physically stuck – fix button
• Input is stuck on or shorted – replace device
• Button is physically stuck – fix button
• Input is stuck on or shorted – replace device
Can't internally read
information from
Transmitter
to device above
• Cable connecting two devices could be flip- flopped (i.e., gray
wire goes from pin 1 on one end to pin 8 on the other end).
Disconnect cable, and if fault changes to Rx Fault, the problem is
the cable.
• Transmitter is bad, Replace the Device
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