Override Operation - Hitachi HISCREW 2000 Series Instruction Manual

運転状況 RUNNING MODE
負 荷
LOAD
エコモー ド
ECOMODE
運 転
電 源
START
POWER
②③
IMPORTANT
(1) Power supply interruption means the instantaneous
drop of voltage to 0 V.
(2) The compressor continues its normal operation without
stop if the said drop time is shorter than 20 ms.

5.2 Override Operation

When the digital monitor displays a shutdown
code, first check the wires and connectors and take
corrective measures against any abnormal or loose
wires/connectors. Sometimes this may solve the
problem. If the problem persists or the shutdown
code is still displayed, proceed to enable an over-
ride operation.
遠 方
REMOTE
起動待ち
③
AUTO START
停 止
STOP
5. TROUBLESHOOTING [Override Operation]
5.1.4 Automatic Restart after Power Supply
Interruption (Equipped to M-Type)
M-type unit is equipped with a function of auto-
matic restart after power supply interruption.
When an interruption of power supply in which
electromagnetic contactor turns OFF happens,
this function detects it. Make AUTO START light
blink and wait until pressure drops down to 0,
then the unit automatically restarts.
q POWER INTERRUPTION occurs.
w The unit stops automatically.
e When the power supply is interrupted, AUTO
START light on the operation panel blinks.
r The compressor will automatically restart 60
seconds after POWER recovery.
(3) When such time is longer than 5 seconds, the sensor
detects it as a power failure and stops the unit. In such
case, the unit will not restart automatically. So, press
the START button to start the unit again.
The override operation allows only the U-type ca-
pacity control. You should use the override opera-
tion as a temporary solution until you can finish
fixing the A.
CAUTION
While you proceed to an override operation,
contact your Hitachi distributor to fix the
A as early as possible.
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