Bosch Rexroth AG VT 3000, Руководство пользователя

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i
u
u
K5
10c 10a
8a
12a 12c
K1.1
K2.1
K3.1
K4.1
w4
w3
w2
w1
+
K6
H1 H2
K3
K2
K1
H4 H3
K4
K5
K6
16a
26c 20c 2a
18a
16c 6c 6a 4a 8c 4c 18c
30a 24a 22a 28a 32a
+U
B
26a
J5,
J6
u
2,5 A T
20a
I
B
32c
X1
0 V
28c
–
10
I
A
W
8
7 7
7
6
5
4
3
2
1
=
14c 14a
t
–1
+9 V
M0
–9 V
9
H12
H11
F
F
F
F
1
F
6
F
F
F
F
F
X1
6 6
7
i
u
F F F F
6
4 /8 Bosch Rexroth AG Hydraulics VT 3000 RE 29935/10.12
Block circuit diagram / pin allocation
Positive comm. value controls solenoid „B“ Negative comm. value controls solenoid „A“
External ramp
Command value 5 ±6 V Command value 4 ±9 V Command value 3 ±9 V Command value 2 ±9 V Command value 1 ±9 V
Command value 6
Reference potential
Differential input
Aux. voltage ±9 V
Measuring zero (M0) is
raised by 9 V compared
to 0 V operating voltage! Call-up command value 1 Call-up command value 2 Call-up command value 3 Call-up command value 4
Call-up „Ramp off“
Call-up „Switch-over aux. voltage
“
Relay call-up voltage (+ 24 V)
Current command value at „w“ 0 to +6 V for solenoid „A“ 0 to –6 V for solenoid „B“ Current actual value
I A
at „I
A
“
Current actual value
I B
at „I
B
“
Biasing current
solenoid „A“
Solenoid „A“
Solenoid „B“
Comm. value after ramp
Operating voltage
H1
to
H4
=
LED-display for com- mand value call-ups
H11
=
„power on“
H12
=
„Ready for operation“
K1
to
K6
=
Call-up relais
w1
to
w4
=
Command values
t
=
Ramp time
1
Command values
2
Differential input
3; 6
Summator
4
Ramp generator
5
Step
function
generator
7
Current output stage
8
Pulse generator
9
Monitorings
10
Power supply
F = on front plate
For explanation of jumpers (J5, J6) and arrangement of in- dicator and adjust- ment elements, see page 6
Biasing current
solenoid „B“