Delta Ultron DPM Series, Руководство пользователя

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Ultron DPM series
3.1.4 Manual Bypass Mode_ Single Input_ Single Unit
WARNING:
1. In Manual Bypass mode, make sure that all of the breakers (except the external
maintenance bypass cabinet’s Manual Bypass Breaker (Q3)) are in the OFF
position before working on the UPS’s internal circuits. This avoids electric
shock.
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inside the UPS and maintenance can be performed safely. However, to avoid
electric shock, please do not touch the following parts:
(a) The external maintenance bypass cabinet’s AC Input terminal block, Bypass
Input terminal block, UPS Output terminal block, Battery Input terminal
block, grounding terminals and any copper bars connected to the external
maintenance bypass cabinet’s Manual Bypass Breaker (Q3).
(b) Every external battery cabinet’s battery input terminal block.
These parts mentioned above may carry high voltage.
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the connected critical loads are not protected.
When the UPS needs maintenance, you can manually switch the UPS to Manual Bypass
mode. To let the UPS run in Manual Bypass mode, please follow the procedures below:
1
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2
Tap the LCD’s ON/ OFF Button ( ) and the screen ' Are you sure to set
Inverter to OFF?
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select ' YES '.
3
Turn ON the external maintenance bypass cabinet’s Manual Bypass Breaker (Q3).
4
Turn OFF the external maintenance bypass cabinet’s Input Breaker (Q1) and Output
Breaker (Q4).
5
Turn OFF each external battery cabinet’s breaker (Q5).
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personnel can perform maintenance safely. Please see Figure 3-6 for Manual Bypass
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