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RE 30058/06.12 VT-VARAP1-...-2X/...
Technical data (For applications outside these parameters, please consult us!)
Supply voltage
U
at z2 – b2
B
Smoothing capacitor, separately
at z2 – b2
Valve solenoid, max.
Current consumption, max.
Power consumption (typical)
Input signal (command value)
Input signal (command value p)
Actual value from the pressure sensor
Pressure controller OFF
External enquiry pressure controller active
Limit frequency
Signal source
Enable output stage
Sensor supply
Position transducer Supply
Pilot control valve
Actual value signal
Main stage
Actual value reference b26: 0...±10 V, R
Solenoid output
b6 – b8
Cable lengths between amplifier and valve
Special features
Adjustment
LED displays
Nominal 24 V =
Battery voltage 21...40 V,
Rectified alternating voltage U
(one-phase, full-wave rectifier)
Recommendation: Capacitor module VT 11110 (see data sheet 30750)
(only necessary if the ripple of U
A/VA 2.7/40 (size 6)
A 1.7
The current consumption may increase with min. U
and extreme cable length to the control solenoid
W 37
｝
b20: 0...±10 V
Differential amplifier
z20: 0...±10 V
(R
= 100 kΩ )
i
｝
z12: 0...10 V
Differential amplifier
z10: 0 V
z14: 4...20 mA – Current input
b16: 0...+10 V/1...+6 V – Voltage input
b18: 0 V – Reference
b10: 6...40 V =
z24: 24 V/0.1 A max.
For applications ≦ 30 Hz
Potentiometer 10 kΩ
Supply with ±10 V from b32, z32 (10 mA) or external signal source
At z16, U = 8.5...40 V, R
z6: +15 V/35 mA, R
~ 25 Ω
i
b30: –15 V (25 mA)
z30: +15 V (35 mA)
b22: 0...±10 V, R
= 10 kΩ/Ref. b24
L
= 10 kΩ/Ref. b28
L
Clocked current controller
I
2.7 A
max
Solenoid cable:
Position transducer: 4 x 0.5 mm
Pressure sensor:
Cable break protection for actual value cable,
Position control with PID behavior,
Pulsed output stage,
Fast energization and fast deletion for short actuating times,
Short-circuit-proof outputs,
Controller shut-off
Zero point via trimming potentiometer ±5 %
Command value attenuator Q
Pressure controller K
Sensitivity pressure load cell
Zero point pressure load cell
green:
Enable
yellow: Cable break position transducer
red:
Supply voltage (U
yellow: Pressure controller OFF
yellow: Pressure controller is working
both yellow LEDs are flashing: Cable break pressure sensor
Hydraulics Bosch Rexroth AG
= 21...28 V
eff
> 10 %)
B
3.7/60 (size 10)
2.7
55
= 100 kΩ, LED (green) on front plate lights up
i
3.7 A
2
up to 20 m 1.5 mm
20 to 60 m 2.5 mm
2
2
(shielded)
4 x 0.5 mm
2
(shielded)
, K
and K
P
I
D
too low)
B
5/14
B
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