Manual and Data Sheet NSE Version 1.0
Variotech – Emergency power supply unit NSE Version 1.0
Date: 10.01.14, Page 3 of 7
Training of the installation and operation personnel:
The operator may only use people for installation and commissioning, which have
the basic rules of accident prevention and safety knowledge and have read and
understood the safety instructions in this manual.
Warranty and liability management:
Warranty and liability claims will be lost if the control is not used as intended or if
any damage due to non-observance of the operating instructions or if the
installation and operating personnel have not been trained properly.
Intended use:
The application of ENA3 safety controls are provided solely lift systems.
The control may not be used in of other systems or particular in industrial plants.
The safety control ENA3 may only be used for the case defined in EN81 Annex 3,
to prevent of an unintendend movement of the car from a standstill.
Commercial data:
Name:
Emergency Power Supply Unit NSE
Packaging Unit:
1 Piece
Customer Tariff:
85044081
Weight / Piece
5N
Product details:
Function:
1. NSE provides an uninterrupted supply of power for the control unit ENA3 and the
trigger coil (24VDC) of the actuator (A3 brake element) for about 10 seconds after a
power failure.
2. After these 10 seconds, the NSE switches off the supply voltage for the ENA3 and
the coil in order not to discharge the backup battery.
3. An emergency rescue button on the box can be pushed to activate the battery again
for additional 15 minutes which supplies the ENA3 and the coil.
During this time, it is possible to make an emergency rescue drive of the lift.
4. This can be repeated multiple times for another 15 minutes, if required.