Chassis Locking in Any Position

The chassis can be locked in any position (connected, test, or disconnected position).

This locking function requires a mechanical adaptation of the chassis, explained in the following procedure.

When the chassis is locked, the racking handle cannot be inserted in the racking handle socket.

The chassis can be locked in any position:

Keylocks can be used in addition to padlocks.

The chassis locking by keylock accessory and the locking and unlocking procedures are the same as for the chassis locking in disconnected position.

DANGER
HAZARD OF DEVICE FALLING Be sure that lifting equipment has lifting capacity for the device being lifted. Follow manufacturer’s instructions for use of lifting equipment. Wear hard hat, safety shoes, and heavy gloves. Failure to follow these instructions will result in death or serious injury.

NOTICE
HAZARD OF EQUIPMENT DAMAGE The chassis must be securely fastened when installing or removing the device. Failure to follow these instructions can result in equipment damage.

Follow this procedure to adapt the chassis locking mechanism so that the chassis can be locked in any position.

Stage	Description
1	Removing the terminal block identification plate and the chassis front cover. (Refer to the following procedure)
2	Changing the position of the lock.
3	Reinstalling the chassis front cover and the terminal block identification plate.

Before starting the procedure, check that the device is in the disconnected position and remove the device from the chassis.

Step	Action
1	Remove the two screws holding the terminal block identification plate in place, by using a PZ2 screwdriver.
2	Carefully pull out the terminal block identification plate.
3	Remove the two screws holding the chassis front cover in place, by using a PZ2 screwdriver.
4	Pull off the chassis front cover.

Step	Action
1	Identify the position of the plastic cover of the lock.
2	Lift the plastic cover of the lock and hold it up.
3	Remove the two screws holding the lock in place, by using a PZ2 screwdriver.
4	Remove the lock.
5	Rotate the lock through 180° to change from locking in disconnected position (A) to locking in any position (B).
6	Use your finger to press down the tab behind the lock slot.
7	Insert the lock, making sure that the notch is on the left side.
8	Screw the lock into position with the two screws, by using a PZ2 screwdriver. Release the plastic cover to allow it to drop back into place

Step	Action
1	Reinstall the chassis front cover.
2	Screw the front cover into position with the two screws, by using a PZ2 screwdriver.
3	Slide the terminal block identification plate into place.
4	Screw the terminal block identification plate in with the two screws, by using a PZ2 screwdriver.