Delta Ultron DPM Series, Руководство пользователя

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1 0 - 2 Ultron DPM series
When you see the following alarm messages appear on the LCD, please follow the solutions shown
below. If you see other alarm messages that are not listed in the table below, please contact Delta
service personnel for assistance. Do not perform troubleshooting if you are not trained for it.
No.
Alarm
Message
Possible Cause Solution
1
MAINS INPUT
VOLT OR FREQ
NOK
1. The input breaker is
turned off.
2. The main AC source’s
voltage or frequency is
abnormal.
1. Please check if the input breaker is
turned off or not. If yes, please turn
it on.
2. Please check if the main AC
source’s voltage or frequency is
abnormal or not. If yes, please
wait for the main AC source to be
restored.
3. If the alarm message still exists
after the solutions mentioned
above have been executed, please
contact service personnel.
2
MAINS INPUT
VOLT PHASE SEQ
NOK
The wiring is incorrect.
Please check the wiring and phase
sequence of the main AC source,
and contact service personnel for
assistance.
3
MAINS INPUT
BREAKER OFF The input breaker is turned
Rႇ
1. Please check if the input breaker is
turned off or not. If yes, please turn
it on.
2. If the alarm message still exists
after the solution mentioned above
has been executed, please contact
service personnel.
4
BYPASS INPUT
VOLT OR FREQ
NOK
1. The bypass breaker is
turned off.
2. The bypass AC source’s
voltage is abnormal.
1. Please check if the bypass breaker
is turned off or not. If yes, please
turn it on.
2. Please check if the bypass AC
source’s voltage is abnormal or
not. If yes, please wait for the
bypass AC source to be restored.
3. If the alarm message still exists
after the solutions mentioned
above have been executed, please
contact service personnel.
5
BYPASS INPUT
VOLT PHASE SEQ
NOK
The wiring is incorrect.
Please check the wiring and phase
sequence of the bypass AC source,
and contact service personnel for
assistance.