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Elevator Core Reference Guide

Rescue Operation Battery Supply - Activation

Figure 6. Activation Conditions for Rescue Mode
Activation Conditions for Rescue Mode

Conditions to switch from mains to Rescue Mode



To switch into Rescue Mode the drive must be stopped.

Note

If the drive is running and the Rescue Mode Digital Input is closed then on the next stop the drive will go into rescue mode.

The drive does not need to be in a healthy state for Rescue Mode to be activated a fault can be present.

The Digital Input terminal (DI8 or DI3 depending on the setting of P1-02) that is used to activate Rescue Mode must have an external voltage supply of at least 18Vdc to activate Rescue Mode.

For battery mode P7-01 must be set to setting 2 : bAtt or the drive will be stuck in an Under-voltage condition.

From default Digital Input 8 is assigned to be Rescue Mode Enable, if a different setting of Macro is used in P1-02 then a different terminal maybe used, or if you are using Macro 0 the Rescue Mode function can be assigned to any Digital Input via Group 12 and selecting option 8: Rescue Mode.Group 1 User IO - Parameter List

Digital/Relay Outputs can be used to indicate if the drive is operating in rescue mode by setting the Digital/Relay Function to 9 (Rescue Mode Active).

Conditions to Run the Drive in Battery Mode

Rescue Mode Running Conditions in Battery Mode

Figure 7. Running Conditions in Rescue Mode with battery supply
Running Conditions in Rescue Mode with battery supply

All conditions above must be met for the drive to run. Each unfulfilled condition will have a separate issue.



Each of the following conditions must be met for the drive to run in Rescue Operation with a battery supply (P7-01 = 2 : bAtt):

  1. P7-01 must be set to 2 : bAtt

  2. Suitably rated (voltage and power) battery connected to the +DC and -DC terminals.

  3. An external 24Vdc must be supplied to the Control terminals (+24V) with respect to (0V) or the drive will not be able to switch into Rescue Mode.

  4. Rescue Mode Enable Input must be on and confirmed as active.

    Note

    You can check if the drive is in Rescue Mode in P7-15.

    When P7-15 = 1 the drive is in Rescue Mode.

  5. 1 Direction command to a Digital Input.

  6. Safety Chain closed to both STO1 and STO2 with 24Vdc applied (The status of the STO inputs can be viewed in P0-03 = 1).

Note

A Speed Reference or Enable Digital Input is not needed in Rescue Mode

The drive must not be in a tripped state.

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