Hitachi NEXT Series User Manual

39
4. TROUBLESHOOTING [Protective Device]
■ Details of instantaneous power interruption (IPI) detection
This air compressor detects three types of power failure, brief IPI: less than one seconds, IPI: 1 to 5 seconds and power
interruption: more than 5 seconds.
Vtype detects the IPI by both PC board and DCBL controller. Therefore this is possible to detect the power failure
2 times at once.
No. Item Code
History record
Phenomenon Action
Fixed speed type Vtype
1
Brief instantaneous power
interruption approx. 1
second or less
04 (Note 3)
○○
Voltage drop
Stop the operation and
restart
2
Instantaneous power
interruption approx. 1 to 5
seconds
03 (Note 1)
○
○
recorded with 04
Voltage drop to
0V,operation stop
Restart after power
recovers.
3 Power failure 04 (Note 2)
-○
Power interruption
for 5 second or
more
Stop the operation and
restart
(Note 1) Vtype records both 03 and 04.
(Note 2) Fixed speed type does not record the history.
(Note 3) Vtype records 2 times of 04 by PC board and DCBL controller. In addition, if IPI occurs and recovers before DC
power de-energizes, 09 (lack voltage) is indicated in E6 area (for DCBL controller) of digital monitor.
When IPI restart occurs frequently, the air compressor
shutdowns by fan motor overload with indication of
OVERLOAD SUB in LCD monitor and E0.53 in digital
monitor. Reset and restart the air compressor after 30
seconds or more.
IMPORTANT
Air-Cooled

Hitachi NEXT Series Specifications

General

Brand	Hitachi
Model	NEXT Series
Category	Air Compressor
Language	English