Electrical Diagram And Main Components - Comprag DV Serie Bedienungsanleitung

Unloading: If air consumption is less than the air delivered by the compressor, the net pressure in-
creases. When the net pressure reaches the upper limit of working pressure (unloading pressure), the
solenoid valve (6) is de-energized. The damper (2) of the intake valve (1) closes the air inlet opening
by a spring force:
1. The control pressure present in the chambers of the loading plunger (3) and the unload-
ing valve (5) is vented into the atmosphere via the solenoid valve (6).
2. The loading plunger (3) moves forwards and causes the intake valve (1) to close the air inlet opening.
3. The unloading valve (5) is opened by the air-oil separation tank pressure. The pressure
from the air-oil separation tank (7) 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 (6) is
energized:
1. The control pressure is fed from the air-oil separation tank (7) via the solenoid valve (6)
to the loading plunger (3) and the unloading valve (5).
2. The unloading valve (5) closes the air blow-off opening. The loading plunger (3) moves
backwards 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

1
2
3
R S
500
AI1
GND
503
FI
400
DI1
401
24V
K4.1
U V
3~
Fig. 2.6 Electrical diagram DV30-55
12
K1.1
T2
T
29 a2
28 b2
27 c2
TC2 203
TA2 504
3~
TC1 500
TB1 502
M2(30-90)
30
485+
485-
31
W
Re(FI)2
504
M1
C
R
A1
K1
A2
K4.1
3~
M3(75-90)
SB1.2
203 202
Re4 Re2
210 209
C C
H
R R YA
A1
K4
A2
QS
380-415VAC
Tr
24VAC
101 100
F1
2A
102
SB1.1
501 10
3
F2
201
Remote
ON/ OF 4
2A
200
5
Re(FI)1 502
6
500
7 v-Log
503
27 27 c2
28 28 b2
29 29 a2
RS-485
A1 B1
1 2
1 2 3
11 22 33
230VAC
201 200
11 22 33
9 19 20 21
u1 u2 u3
Re4 13 210
c 14 203
Re3 15
Re2 16 209
Re1 17
c 18 203
I
22
P
23
25
T
26
RS-485
A2 B2
8 30 31
GND 30 31
"RS-485"
Version 1.1