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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
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 to "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".
sign.
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4. Troubleshooting Guide
4.1. Trouble Shooting
When the UPS malfunctions during operation, you may check the followings:
a. Are the wirings of input and output correct?
b. If the input voltage of the Utility is within the input window of the UPS?
In case problems or symptoms still exist, please proceed the followings for
proper adjustment. Should the problem persists, please contact your local
distributor for help.
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