7 Description of Function Codes NICE5000 User Manual
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The slow-down signals are used to enable the elevator to stop at the slow-down speed when
the car position is abnormal, which is an important method to guarantee elevator safety. The
system automatically records the positions of the switches in group FH during shaft auto-
tuning.
22: Shorting door lock circuit contactor feedback
It is the feedback signal when the door lock circuit is shorted if the function of door pre-open
upon arrival or re-leveling at door open is enabled for the elevator congured with the pre-
open module. This is to ensure safety during the elevator running.
23: Fireghter switch signal
It is the reghter switch signal and is used to enable the reghter operation mode. After
the elevator returns to the re emergency oor, the elevator enters the reghter operation
state if the reghter signal is active.
24: Door machine 1 light curtain signal 25: Door machine 2 light curtain signal
26: Door machine 1 safety edge signal 29: Door machine 2 safety edge signal
They are used to detect the light curtain signals of door machine 1 and door machine 2 (if
existing).
127: EPS valid signal
It is the emergency running signal at power failure. If it is active, it indicates that the elevator
is running for emergency evacuation at power failure. For more details, see section 5.5.1.
28: Elevator lock signal
If this signal is active, the elevator enters the locked state, returns to the elevator lock oor
and does not respond to any calls until the signal becomes inactive.
30: Shorting PMSM stator feedback signal
The shorting PMSM stator contactor protects the elevator from falling at high speed in the
case of brake failure. This signal is used to monitor whether the shorting PMSM stator
contactor is normal.
32: Motor overheat signal
If this signal remains active for more than 2s, the controller stops output and reports
fault Err39 to prompt motor overheat. After this signal becomes inactive, Err39 is reset
automatically and the system resumes to normal operation.
33: VIP signal
The elevator enters the VIP service state after this signal is active.
34: Earthquake signal
If this signal remains active for more than 2s, the elevator enters the earthquake stop state,
stops at the nearest landing oor and opens the door. Then the elevator starts running again
after the earthquake signal becomes inactive.
35: Security signal
If this signal is active, each time the elevator passes the security oor, it opens and closes
the door once, and then runs to the destination oor.
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