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3. OPERATING PROCEDURE [How to Use the Liquid Crystal Display (LCD)]
3.3.5 [FUNCTION MENU] - Setting Displays
Confirm the settings by lead/lag and multi unit
control (option). These options need wiring
modification. Item number with a dash “-“ cannot be
selected on LCD monitor.
1- MODE:
Operation mode set on the digital monitor.
2. DUAL TIME: Alternate operation hours of lead/
lag operation.(Setting range : 0.1 to 99.9 hours;
initial value: 8.0)
3. METHOD: Switching method (overlap or interval)
of lead/lag operation.
4. SWITCHOVER: Switching-over or overlapping
period of lead/lag operation. (Setting range : 5 to
300 seconds; initial value: 15)
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㻝
㻹㻻㻰 㻱 䠖 㻳㻸
㻞䠊㻰㼁㻭㻸 㻌 㼀 㻵㻹㻱䠖 㻌 㻤䠊
㻌㻿㻺
㻜㼔
㻟䠊㻹㻱㼀㻴㻻㻰䠖 㻭㻼
㻠䠊㻿㼃㻵㼀㻯㻴㻻㼂㻱㻾䠖 㻜㻝㻡㼟
㻡䠊㻮㻭㻯㻷㼁㻼䠖 㻌 㻌 㻌 㻣㼜
㻻㼂㻾㻾㻸
㼟㼕
㻢䠊㼁㻺㻸㻻㻭㻰䠖 㻌 㻌 㻌 㻟㼜 㼟 㼕
㻣
㻭㻸㼀䠊㼀 㻵㻹㻱䠖㻌 㻠㻤㻜㻹㻵 㻺
㻤
㻯㻻㻺㼀㻾㻻㻸 㻹㻻㻰㻱 䠖 㻮
㻿㻱㼀䠖㻿㼀㻻㻾㻱 㻌㻹㻻㻺䠖㻮㻭㻯㻷
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
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㼂㻱㻾䠊䠖 㻡䠊㻜
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㻿㻱㻾 㻵 㻱㻿 㻺㻭㻹㻱䠖 㻰㻿㻼
㻯㻻㻻㻸 㻵 㻺㻳 㻹㻱 㼀㻴㻻㻰 䠖 㼃㼀 㻾
㻺㻻䠊㻻㻲 㻿㼀㻭㻳㻱 䠖 㻌 㻞
㻼㻙㻿㻼㻱㻯䠖 䚷㻝 㻜㻜㼜㼟 㼕
㻼䠊㻰㻭㼀㻭䠖 䚷䚷 㻢㻤 㼜 㼟 㼕
䠟䠰 䠖 㻞 㻡 㻜䠝
㻯㻸㼀䠊㻰㻱㻸㻭㼅䠖 㻌 㻡 㼟
㻵㻼㻵䠖 㻵 㻵 㻵
㻭㻰㻾㻱㻿㻿 㻺㻻䠊䠖 㻌 㻝
㻹㻻㻺 䠖 㻮㻭㻯㻷
If using the backup function, switch to the digital
monitor for setting.
When contacting the local Hitachi distributor, inform
this information as a based setting status.
IMPORTANT
IMPORTANT
1
Model Setting Confirmation
2
Operation Mode Setting
This display contains software version (VER.), air
compressor series (SERIES NAME), cooling method
(COOLING METHOD), number of air compression
stages (NO. OF STAGE), action against instantaneous
power interruption (IPI) and etc. “＊＊ ” means the
setting that is not required.
① Indicates board software version.
② Indicates compressor type.
③ Displays cooling type.
④ Displays the number of compressor stages.
⑤ Displays pressure specification.
⑥ Displays interstage pressure.
⑦ Indicates CT setting value.
⑧ Displays water failure detection conditions for water
cooled compressor.
⑨ Displays status of instantaneous power interruption
(IPI) restart setting.
⑩
Displays compressor number. (Must be distinguished
by number is using communication function.)
The settings can be memorized while the air compressor
is stopped.
IMPORTANT
5. BACKUP: Pressure to start a backup unit in a
backup operation (cut-in (load) pressure – α)
6. UNLOAD: Pressure to unload both the units in a
backup operation (cut-out (unload) pressure – α)
7- ALT. TIME: Displays time remaining until switch for
dual / backup operation. Time is not counted down
when operating 2 units for backup operation. When
operation is stopped, remaining time is maintained.
8- CONTROL MODE: Control mode A or B for Vtype
(
3.3.2). “＊＊” is indicated in fixed speed type.
SNGL Operates an air compressor independently
STPR
Operates by multi roller EX of exclusive use for NEXT
series using communication function.
By this setting RS485 communication port is effective.
The setting of air compressor number is required.
DUAL
Operates two air compressors alternately according to
a time schedule. The AUTO light comes ON (glowing).
BKUP
Operates two air compressors according to a preset
back up pressure. Starts the back up slave unit when
the pressure has dropped to the desired preset back up
pressure. The AUTO light comes ON (glowing)
OVERLAP
Slave unit starts, master/slave units overlap in operation
for a preset period, and then master unit stops.
INTERVAL
Master unit stops, a non-operating interval passes, and
then slave unit starts.
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