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NICE1000new User Manual
System Commissioning and Application Example
5.2 System Application
5.2.1 Emergency Evacuation at Power Failure
Passengers may be trapped in the car if power failure suddenly happens during the use of
the elevator. The emergency evacuation function at power failure is designed to solve the
problem.
The emergency evacuation function is implemented in the following two modes:
•• Uninterrupted power supply (UPS)
•• Emergency automatic rescue device (ARD) power supply
•• Shorting PMSM stator
The three modes are described in detailed in the following part.
■■ Emergency 220 V UPS
In this scheme, the 220 V UPS provides power supply to the main unit and the drive control
circuit. The following figure shows the emergency 220 V UPS circuit.
Figure 5-7 Emergency 220 V UPS circuit
R
N
UPS-220 V
MCB
M0
Y0
Safety contactor
21 22
UPS-0 V
UPC
21
62
61
22
1
2
(6 A)
Transformer
220 VAC
C
R
220 VAC
115 VAC
UPC
UPC
3
4
5
13
(6 A)
6
14
R
S
T
NICE1000new
The following figure shows various contacts of the contactors.
- 70 -
115 VDC