Hitachi NEXT Series Instruction Manual page 28

Oil-free rotary screw air compressor
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3. OPERATING THE DSP [How to Use the Digital Monitor]
7 segment
Function
display
F022
Pressure
F023
setting 1
F024
(*3)
F025 (*2)
V type
F031
Pressure
F032
setting 2
F033
(*3)
F034 (*2)
Pressure
F023
setting 1
F024
(*3)
Standard
type
Pressure
F032
setting 2
F033
(*3)
F026
Pressure
F027
setting 1
F028
(*3)
F029
V type
F035
Pressure
F036
setting 2
F037
(*3)
F038
Pressure
F027
setting 1
F028
(*3)
Standard
type
Pressure
F036
setting 2
F037
(*3)
Shutdown history clear
F041 (*1) History Clear
● Pressure setting condition
Type
Standard type
① Start pressure (F023) cannot be set below the value of Recovery pressure (F024) (F025) + 3 psi.
① Start pressure (F023) cannot be set below the value of Control pressure (F022) + 3 psi.
V type
② Recovery pressure cannot be set above the value of Control pressure (F022).
Note 1. The higher value, in which value of Recovery pressure (F024) or (F025), becomes the standard type condition ①.
2. The setting condition is same in case of Pressure setting 2 (F031〜F034) .
IMPORTANT
1. Pressure setting
V type: Set pressure differential of start pressure and recovery pressure to a minimum of 7 psi when using a standard receiv-
er. Set Pressure differential of start pressure and control pressure to a minimum of 3 psi.
Fixed speed type: Set pressure differential of start pressure and recovery pressure to a minimum of 15 psi.
2. Function for switching to pressure setting 2 by external pressure alteration input is optional.
26
Item
Range
Control pressure setting 1
0.5 〜 0.75 【0.86】
(control pressure)
(73 〜 110 【125】 )
Start pressure 1
0.5 〜 0.77 【0.88】
(cut out pressure)
(73 〜 112 【128】 )
Recovery pressure 1
0.5 〜 0.73 【0.84】
(cut in pressure)
(73 〜 106 【122】 )
P type recovery pressure 1
0.5 〜 0.73 【0.84】
(restart pressure)
(73 〜 106 【122】 )
Control pressure setting 2
0.5 〜 0.75 【0.86】
(control pressure)
(73 〜 110 【125】 )
Start pressure 2
0.5 〜 0.77 【0.88】
(cut out pressure)
(73 〜 112 【128】 )
Recovery pressure 2
0.5 〜 0.73 【0.84】
(cut in pressure)
(73 〜 106 【122】 )
P type recovery pressure 2
0.5 〜 0.73 【0.84】
(restart pressure)
(73 〜 106 【122】 )
Start pressure 1
0.5 〜 0.75 【0.86】
(cut out pressure)
(73 〜 110 【125】 )
Recovery pressure 1
0.5 〜 0.65 【0.76】
(cut in pressure)
(73 〜 94 【110】 )
Start pressure 2
0.5 〜 0.75 【0.86】
(cut out pressure)
(73 〜 110 【125】 )
Recovery pressure 2
0.5 〜 0.65 【0.76】
(cut in pressure)
(73 〜 94 【110】 )
Control pressure setting 1
0.5 〜 1.0
(control pressure)
(73 〜 145)
Start pressure 1
0.5 〜 1.02
(cut out pressure)
(73 〜 148)
Recovery pressure 1
0.5 〜 0.98
(cut in pressure)
(73 〜 142)
P type recovery pressure 1
0.5 〜 0.98
(restart pressure)
(73 〜 142)
Control pressure setting 2
0.5 〜 1.0
(control pressure)
(73 〜 145)
Start pressure 2
0.5 〜 1.02
(cut out pressure)
(73 〜 148)
Recovery pressure 2
0.5 〜 0.98
(cut in pressure)
(73 〜 142)
P type recovery pressure 2
0.5 〜 0.98
(restart pressure)
(73 〜 142)
Start pressure 1
0.5 〜 1.0
(cut out pressure)
(73 〜 145)
Recovery pressure 1
0.5 〜 0.9
(cut in pressure)
(73 〜 131)
Start pressure 2
0.5 〜 1.0
(cut out pressure)
(73 〜 145)
Recovery pressure 2
0.5 〜 0.9
(cut in pressure)
(73 〜 131)
0 〜 1
Setting condition (Example of Pressure setting 1)
Precision/
Initial value
unit
0.01MPa
0.75 【0.86】
(1.5psi)
(110 【125】 )
0.01MPa
0.77 【0.88】
(1.5psi)
(112 【128】 )
0.01MPa
0.72 【0.83】
(1.5psi)
(104 【120】 )
0.01MPa
0.72 【0.83】
(1.5psi)
(104 【120】 )
※Setting can be altered at any time.
0.01MPa
0.75 【0.86】
(1.5psi)
(110 【125】 )
0.01MPa
0.77 【0.88】
(1.5psi)
(112 【128】 )
0.01MPa
0.72 【0.83】
(1.5psi)
(104 【120】 )
0.01MPa
0.72 【0.83】
(1.5psi)
(104 【120】 )
0.01MPa
0.75 【0.86】
(1.5psi)
(110 【125】 )
0.01MPa
0.65 【0.76】
(1.5psi)
(94 【110】 )
※Setting can be altered at any time.
0.01MPa
0.75 【0.86】
(1.5psi)
(110 【125】 )
0.01MPa
0.65 【0.76】
(1.5psi)
(94 【110】 )
0.01MPa
1.0
(1.5psi)
(145)
0.01MPa
1.02
(1.5psi)
(148)
0.01MPa
0.97
(1.5psi)
(141)
0.01MPa
0.97
(1.5psi)
(141)
※Setting can be altered at any time.
0.01MPa
1.0
(1.5psi)
(145)
0.01MPa
1.02
(1.5psi)
(148)
0.01MPa
0.97
(1.5psi)
(141)
0.01MPa
0.97
(1.5psi)
(141)
0.01MPa
1.0
(1.5psi)
(145)
0.01MPa
0.9
(1.5psi)
(131)
※Setting can be altered at any time.
0.01MPa
1.0
(1.5psi)
(145)
0.01MPa
0.9
(1.5psi)
(131)
1
0
0 : Enter, 1 : History clear

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