48 EN
MASTERYS GP4 60-160 kVA - Ref.: IOMMASGPXX07-EN 05
9. OPERATING PROCEDURES
NOTE: before carrying out any operations on the unit read the 'Safety standards' chapter care-
fully.
NOTE: with the stop procedure the load will be disconnected.
9.1 Switching ON
• Connect the mains and auxiliary mains to the UPS.
• Switch ON input switch Q1.
• Wait until display switch on.
• Enter MAIN MENU > CONTROLS > UPS PROCEDURE.
• Select START PROCEDURE and press ENTER.
• Carry out the operations indicated on the display.
9.2 Switching OFF
This operation interrupts the power supply to the load. The UPS and the battery charger will be shut down.
• Enter menu MAIN MENU > CONTROLS > UPS PROCEDURE.
• Select STOP and press ENTER.
• Wait approx. 2 minutes for the UPS shutdown.
NOTE: the controlled shutdown of each server connected to the LAN can be managed by shut-
down software.
• Carry out the operations indicated on the display.
9.3 Bypass operations
Switching onto maintenance bypass
This operation creates a direct connection between the UPS input and output, excluding the equipment control part.
This operation is performed in the event of:
- standard maintenance.
- serious failure has occurred.
WARNING! LOAD POWERED BY AUX MAINS: your load is exposed to mains disturbances.
• Enter MAIN MENU > CONTROLS > UPS PROCEDURE.
• Select ON MAINTENANCE BYPASS and press ENTER.
• Carry out the operations indicated on the display.
NOTE!
When an external maintenance bypass is present:
- carry out the procedure described above;
- put the switch to position 1.
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