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Guidance only; connections may differ with date, model, type, variant, special, custom or concession builds.
This information is intended to be used in conjunction with the compressor’s original control circuit diagram.
SA1
HATS
E-STOP
VFD/FIX
+VDC
Load Enable
Load/Unload
VFD/fixed
IN
NO
C
NC
NO
C
NC
RUN
ALARM
READY
OUT
V
SEQ CONT
LOAD UNL
GND
D11
D12
+20V
V
1
2
3
4
5
6
2
1
LED 5 V
LED 2 LOAD
LED 1 SEQ
LED 4
READY
LED 3
RUN
C03
C01
C02
C04
C05
IR-PCB
1
2
3
4
5
6
V1
Refer to the X4I Overview Drawing
for the X4I Compressor 2 through 4
terminal connections
X4I
COMPRESSOR #1
X01 TERMINAL
+24VDC
DI-4
EN
12
14
13
10
D13
17
NO
0V
5
+24VDC
11
DI-2
9
Unigy
7.5 - 15 HP
5.5 – 11 kW
Unigy Phase 2/3
Unigy Phase 2/3 1of2 Page 18