Comprag DV-5510 [12/92] Electrical diagram and main components

Comprag DV-5510 [12/92] Electrical diagram and main components
12
Version 1.4
Unloading: If air consumption is less than the air delivered by the compressor, the net pressure
increases. When the net pressure reaches the upper limit of working pressure (unloading
pressure), the solenoid valve (3) is de-energized. The damper (5) of the intake valve (1) closes
the air inlet opening by a spring force:
1. The control pressure present in the chambers of the intake valve (1) and the unloading
valve (7) is vented into the atmosphere via the solenoid valve (3).
2. The damper (5) of the intake valve (1) closes the air inlet opening.
3. The unloading valve (7) is opened by the air-oil separation tank pressure. The pressure
from the air-oil separation tank (4) is released towards the air inlet.
4. The pressure is stabilized at a low value, 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 solenoid valve (3) to
the unloading valve (7).
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 loade.
2.6 Electrical diagram and main components
Fig. 2.6.1
Electrical diagram
DV30-55
1
11
2
22
3
33
QS
Tr
380-415VAC
101100 200201
1
2
3
24VAC230VAC
K1.1
UVW
RST
3~ M1
AI1
24V
DI1
TC1
TB1
400
500
502
K4.1
T2
a2
b2
c2
YA
Re2
201202203
F2
2A
SB1.2
209
200
A1
A2
K4
R
C
R
C
A1
A2
K1
R
C
210
503
500
Re4
RS-485
27
28
29
401
485+
485-
30
31
GND
203
H
Ready
Re(FI)2
504
TC2
TA2
504
K4.1
3 X 380-415VAC
3~
M2(30-90)
3~
M3(75-90)
10 9 19 20 21
11 22 33
18
17
16
15
c
Re1
Re2
102
203
209
210
u1 u2 u3
6
3
4
5
7
Re3
Re4
c14
13
12 83031
RS-485
GND
503
502
"RS-485"
30 31
A1 B1 A2 B2
RS-485
500
203
ON/ OFF
Remote
Re(FI)1
27
28
29
c2
b2
a2
27
28
29
22
23
25
26
I
P
T
F1
2A
SB1.1
501
v-Log
FI

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