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GEZE PowerDrive Troubleshooting: No Mains Voltage Guide

Applicable Models: DCU1-NT, DCU1-2M-NT, DCU1, DCU1-2M

5. No Mains Voltage

If the mains voltage fails (e.g., due to a power failure), first check the on-site safety fuse to ensure the issue is not local.

5.1 Door behaviour in case of power failure

State Reaction
No mains voltage
(e.g. power failure)
In the “Night/Locked” mode of operation, the door is closed and locked.
Standard drives In the modes of operation “Exit only”, “Automatic”, and “Hold open”, the behaviour of the door depends on the parameters set during commissioning:
  • Door remains in the current position and switches off.

With drives with built-in rechargeable battery, depending on the function selected:

  • Door closes and switches off.
  • Door opens and switches off.
  • Normal operation for maximum 30 minutes or 30 open/close cycles, then close and switch off.
  • Normal operation for maximum 30 minutes or 30 open/close cycles, then open and switch off.
FR drives
  • In the “Night/Locked” mode of operation, the door is closed and locked.
  • In the other modes of operation, the door opens and remains open.
BO drives
  • In the “Night/Locked” mode of operation, the door is closed and locked.
  • In the other modes of operation, the door opens and switches off.
  • If the break-out function is triggered (door leaf broken out), the door remains in the current position and switches off.
No active power supply
(SL-T30 and SL-RD)
Door is closed with reduced closing speed in all the modes of operation.
Mains voltage available again The door automatically returns to the last selected mode of operation.
Power supply available again
(SL-T30)
The door automatically returns to the last selected mode of operation when the reset switch is pressed. The reset switch can be reached by opening the drive cover.
Power supply available again
(SL-RD)
The door returns to the last selected mode of operation as follows:
  • Activate the  button on the display programme switch.
  • Activate the  +  buttons on the keypad programme switch at the same time.

5.2 Locking/unlocking if there is no mains voltage

Locking Type Measures
Toothed belt locking

Locking only makes sense when the door is closed.

Locking with drives with built-in rechargeable battery

If the door is to be locked and this door is the only point of access:

  • Push the door closed manually from the inside.
  • Push the locking pin.
  • Activate the (inner) authorised activation device until initialisation of the drive is completed.

DPS or TPS indicates Night/Locked mode of operation.
Sequence: Door opens – leave the building – door closes – locks again and switches off.

Unlocking from the outside with drives with built-in rechargeable battery

  • Activate the (outer) authorised activation device until the drive is initialised and the door starts to open.

Sequence: Door opens – door closes – locks again and switches off.

Unlocking from the inside with drives with built-in rechargeable battery

  • Activate the (outer) authorised activation device until the drive is initialised and the door starts to open.

Sequence: Door opens – door closes – locks again and switches off.

Unlocking with drives without built-in rechargeable battery (only possible from the inside)

  • Push the door to the desired locking position and push/slide the locking pin (see Chapter 3.1).
  • Pull the locking pin (see Chapter 3.1).

The door leaves are unlocked and can be opened manually.

Rod locking, Lock A and folding door lock

Locking is only possible when the door is closed.

Locking with drives with built-in rechargeable battery

If the door is to be locked and this door is the only point of access:

  • Push the door closed manually from the inside.

For sliding door with rod locking:

  • Lock using an Allen key through the drill hole in the cover in the indicated direction of rotation.

For sliding doors with Lock A (see also installation instructions “Automatic hook bolt lock Lock A”):

  • Manual locking: Insert a tool with approx. Ø 5 mm at the bottom into the slot of the main closing edge/side screen profile and press the lock upwards.
  • Manual unlocking: Insert a tool with approx. Ø 5 mm at the top into the slot of the main closing edge/side screen profile and press the lock downwards.

With folding door and folding door locking:

  • Lock with Allen key through the recess in the left post profile in the indicated direction of rotation.
  • Then, activate the (inner) authorised activation device until initialisation of the drive is completed.

DPS or TPS indicates Night/Locked mode of operation.
Sequence: Door opens – leave the building – door closes – door locks again and switches off.

Unlocking from the outside with drives with built-in rechargeable battery

  • Activate the (outer) authorised activation device until the drive is initialised and the door starts to open.

Sequence: Door opens – door closes – locks again and switches off.

Unlocking from the inside with drives with built-in rechargeable battery

  • Activate the (inner) authorised activation device until the drive is initialised and the door starts to open.

Sequence: Door opens – door closes – locks again and switches off.

Unlocking with drives without built-in rechargeable battery (only possible from the inside)

For sliding door with rod locking:

  • Lock using an Allen key through the drill hole in the cover in the indicated direction of rotation.

Sliding door with Lock A:

  • Fit a tool with approx. Ø 5 mm at the bottom or top of the slot in the main closing edge/side screen profile and lock in the indicated direction of movement.

With folding door and folding door locking:

  • Unlock with a hollow set-screw through the recess in the left post profile in the indicated direction of rotation until the door leaves can be pushed opened by hand.
Locking for SL-BO

Locking is only possible at a closed door.

Locking with drives with built-in rechargeable battery

If the door is to be locked and this door is the only point of access:

  • Push the door closed manually from the inside.
  • Push the locking pin.
  • Activate the (inner) authorised activation device until initialisation of the drive is completed.

DPS or TPS indicates Night/Locked mode of operation.
Sequence: Door opens – leave the building – door closes – door locks again and switches off.

Unlocking from the outside with drives with built-in rechargeable battery

  • Activate the (outer) authorised activation device until the drive is initialised and the door starts to open.

Sequence: Door opens – door closes – door locks again and switches off.

Unlocking from the inside with drives with built-in rechargeable battery

  • Activate the (inner) authorised activation device until initialisation of the drive is completed.

Unlocking with drives without built-in rechargeable battery (only possible from the inside)

  • Push the door to the desired locking position and push the locking pin (see Chapter 3.1).
  • Pull the locking pin (see Chapter 3.1).

The door leaves are unlocked and can be opened manually.

Note: After the mains voltage has been restored, the (locked) door automatically switches to the “Night/Locked” mode of operation.

 

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