Comprag D-4510 [11/92] Electrical diagram and main components

Comprag D-4510 [11/92] Electrical diagram and main components
11
COMPRAG Screw air compressor D-Series
2. The unloading valve (7) closes the air blow-off opening. The damper (5) moves backdown
and causes the intake valve (1) to open fully.
Air output is resumed (100 %), and the compressor runs loaded.
2.6 Electrical diagram and main components
3. The unloading valve (7) is opened by
the air-oil separation tank pressure.
The pressure from the air-oil separa-
tion tank (4) is released towards the
air inlet.
4. The pressure is stabilized at a low val-
ue, air output is stopped (0 %) and the
compressor runs unloaded.
Loading: When the net pressure decreases
to the loading pressure, the solenoid valve is
energized:
1. The control pressure is fed from the
air-oil separation tank (4) via the sole-
noid valve (3) to the unloading valve (7).
Fig. 2.6
Electrical diagram
D30-D55
1
11
2
22
3
33
QS
Tr
380-415VAC
101 100 200201
F1
2A
10 9 19 20 21
11 22 33
1
2
3
3 X 380-415VAC
22
23
31
30
I
P
T
24VAC 230VAC
18
17
16
15
c
Re1
Re2
Re5
102
203
u1 u2 u3
2
4
1
Re3
Re4
14
13
67
RS-485
GND
SB1.2
"RS-485"
AB
8
27
28
29
c2
b2
a2
27
28
29
24
25
26
c1
b1
a1
24
25
26
204
205
207
209
210
300
301
3~
M1
K1.1
T1
a
b
c
K2.1
K3.1
1
2
3
26
25
24
i-LOG
3
Remote
ON/ OFF
K4.1
T2
a2
b2
c227
28
29
3~
M3(75-90)
3~
M2
Re1
A1
A2
K2
A1
A2
K1
A1
A2
K3
Re2
K2.1
Re3
K3.1
204 205207
208
206
201202203
F2
2A
SB1.1
200
Re5
A1
A2
K4
210
YA
Re4
209
R
C
R
C
R
C
R
C
R
C
Fig. 2.5 Regulating
system

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