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Elevator Core Reference Guide

Battery Supply Installation

Battery Supply Requirements

When operating in battery mode the drive uses a different set of conditions for supply voltage thresholds as well as required current . These are detailed in the table below.

Rescue Power Supply Type

Required Connections

Nominal Rating

Minimum Voltage

Maximum Voltage

Current Requirements

Battery Power Supply

High Power connections to terminals +DC and -DC

-

32Vdc (<24Vdc will result in an Undervoltage trip)

200-240V drives = 240Vdc

380-480V drives = 450Vdc

Motor Rated current (P4-03) and considering overload, typically no greater than 200%

Control +24V connection to terminals 0V and +24V

24V

20V

26V

2.2A (60W)

Battery Supply Connection

Battery Supply Connections

Required Contactor Sequencing

Quick_Start_-_Rescue_Mode_Battery_-_Connection_Diagram.svg

  • The Rescue Supply Contactor must only be closed when the Main Contactor is open.

  • A delay time of no less than 2 seconds must be included when changing over to/from Rescue supply to/from mains supply mode.

  • The Main Supply Contactor and Rescue Supply Contactor must be interlocked so that both cannot be energised at the same time, failure to do so may result in damage to the battery/contactor.

  • The Battery must have a reverse power protection diode fitted as shown in the diagram opposite.

  • The protection diode must have a voltage rating of at least 1000V and with a current rating of 2 x drive rated current.

  • The drive will always wait until the next stop command (Direction input removal) before rescue mode operation is activated and likewise when rescue mode is de-activated the drive will wait until the next stop command before changing back to normal mains supply operation.

Warning

A suitable protection diode must be fitted to the battery supply as shown in the example to prevent damage to the system.

Suitable protection must be provided for all wiring.

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