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1 Stop Circuit Open
Stop circuit-120 (Speed regulator, parachute contact,
stop buttons…) is cut during motion.
Cause
Troubleshooting
1. During startup, check if the rectifier connections are tight
move the faston connectors.
2. Check the input of the rectifier at 55Vac from transformer and
the output 48Vdc.
3. If you have folding buers, check the door contacts (LHI for
low headroom is located to all floor doors except bottom floor
and LPI is for low Pit and is located to the bottom floor door
contact) and the safety relays led condition. they must have
3 leds lit each safety relay. The safety relay is activated if you
press RST button while the low pit and low headroom contacts
are closed (doors closed)
TIP: Check electrical drawings pages 2-5-7
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