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51033211EN/AC - Page 27
4. Maintenance
4.2 UPS replacement
Fault-tolerant connection module
Before carrying out this operation, the supply of power to the connected equipment must be cut.
The equipment will therefore no longer be powered.
Disconnection:
1. Shut down the UPS by pressing button (return to the OFF
position).
2. Open the battery circuit breaker(s) .
3. Open the upstream device (OFF position) controlling the
supply of AC power to the UPS.
4. Remove the two fixing screws and the connection module
from the UPS.
Reconnection:
1. Insert the connection module in the connector and secure
using the two screws .
2. Close the upstream device (ON position) controlling the
supply of AC power to the UPS.
3. Close the battery circuit breaker(s) .
Check that UPS personalization settings still
correspond to the equipment to be supplied
(see section 3.5).
4. Start the UPS by pressing button .
The connected equipment is again protected by the UPS.
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