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3.5.8.1. 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.
3.5.8.1.1. Press the Off
key pad for approx. 5 seconds, the LCD screen
shows as drawing B and the UPS output is on bypass mode.
3.5.8.1.2. 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.
3.5.8.1.3. Turn off the UPS Utility breaker as well as Bypass Input Breaker, you
then may proceed UPS maintenance now.
3.5.8.1.4. To repeat 3.5.1.4, you may put the UPS back to normal working mode,
then turn back the CAM switch t
o “INV” mode, fasten back the cover
and repeat 3.5.1.5 to 3.5.1.8 The UPS will switch back to inverter mode.
3.5.8.1.5. It is required to go through 3.5.8.1.1 first, then go through 3.5.8.1.2 If
you skip 3.5.8.1.1, 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”.