Monarch NICE7000 - System Functions; Emergency Evacuation at Power Failure; Eps; 220 V UPS Circuit

5 System Commissioning and Functions NICE7000 User Manual
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5.5 System Functions
5.5.1 Emergency Evacuation at Power Failure
Passengers may be entrapped 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:
1. Emergency power supply (EPS)
2. Shorting PMSM stator
These modes are described in details in the following part.
1. EPS
1) 220 V UPS
In this scheme, the 220 V UPS supplies power to the main unit and the drive control circuit.
The following gure shows the emergency 220 V UPS circuit.
Figure 5-5 220 V UPS circuit
220 VAC
115 VAC
UPS-220 V
UPC
Safety
contactor
21
22
Y6
M6
MCB
61
62
21
22
2
1
3
4
R
N
Transformer
115 VDC
220 VAC
UPS-0 V
(6 A)
(6 A)
A1
A2
65
1413
UPC
NICE7000
R
S
T
UPC
The following gure shows various contacts of the contactors.