INFOSEC UPS SYSTEM – 4 rue de la Rigotière – 44700 Orvault – France – www.infosec-ups.com
Hot Line Tel : +33 (0)2 40 76 15 82 – fax : +33(0)2 40 94 29 51 – hotline@infosec.fr – 11 11 AA 68 203 16
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3.5.8.
Maintenance Bypass Mode
It is for UPS maintenance only. A Non-authorized technician is not allowed to operate the
following procedures. If there is any damage under unauthorized condition, your warranty will
be void immediately.
Step 1:
Press the Off key pad for approx. 5 seconds, the LCD screen shows as
drawing B and the UPS output is on bypass mode.
Step 2:
Release the cover of the CAM Switch (Maintenance Bypass Switch) first, then
turn on the CAM Switch to “Bypass” mode, and at the right-hand upper Corner of the
LCD screen will show sign.
Step 3:
Turn off the UPS Utility breaker as well as Bypass Input Breaker, you then may
proceed UPS maintenance now.
Step 4:
To repeat 4, you may put the UPS back to normal working mode, then turn
back the CAM switch to “INV” mode, fasten back the cover and repeat 5 to 8 The UPS
will switch back to inverter mode.
Step 5:
It is required to go through step 1 first, then go through step 2. If you skip
step 1, the UPS will alert for 10 seconds to warn that the procedure is abnormal, which
may damage the UPS due to uncertain utility status. The UPS will switch back to
Inverter mode immediately if you turn the CAM switch back to “INV”.
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