
GU320a Controller Manual
3
2.2
Connection port
:
Pin NO.
Function
Signal
Line
A1
phase A V input
0-300VAC
1mm
²
line
A2
Phase B V input
0-300VAC
1mm
²
line
A3
Phase C V input
0-300VAC
1mm
²
line
A4
N
zero line
1mm
²
line
B5
A phase A input {S1}
0-5A(AC)
1mm
²
line
B6
B phase A input {S1}
0-5A(AC)
1mm
²
line
B7
C phase A input {S1}
0-5A(AC)
1mm
²
line
B8
Current input common {S2}
0-5A(AC)
1mm
²
line
C9 Relay
output
common
1.5mm
²
line
C10
Fuel electromagnetic valve relay output
N.O dry contact
,
16A/30VDC
1.5mm
²
line
C11
Start relay output
N.O dry contact
,
16A/30VDC
1.5mm
²
line
C12
Exciter source of charger output
Forbid to cathode when no use
1mm
²
line
C13
Gen. Set running output
N.O dry contact
,
3A/30VDC 1mm
²
line
C14
Fault alarm output
N.O dry contact
,
3A/30VDC 1mm
²
line
C15
Pre-alarm output
N.O dry contact
,
3A/30VDC 1mm
²
line
C16
Idle output
N.O dry contact
,
3A/30VDC 1mm
²
line
D17 Pressure
detection
P-sensor
1mm
²
line
D18 Temperature
detection
T-sensor
1mm
²
line
D19 standby
Measure
0~5Vdc
1mm
²
line
D20
Pressure signal
Low potential valid
1mm
²
line
D21
Temperature signal
Low potential valid
1mm
²
line
D22
E.stop signal
Low potential valid
1mm
²
line
D23
Start (external control) signal
Low potential valid
D24
Standby signal measure
Low potential valid
1mm
²
line
D25
Magnetic sensor signal{
+
}
D26
Magnetic sensor signal{
-
}
1-35Vac
connected to cathode of the DC source
inside
Two-core
shield
D27
Operating source {+}
1mm
²
line
D28
Operating source {-}
8
-
35VDC
1mm
²
line