English
العربية
Bosch Rexroth VT3024 Proportional Valve Amplifier Card
Key Specifications
|
Specification
|
Detail
|
|---|---|
|
Brand
|
Bosch Rexroth
|
|
Series
|
VT 3000, Series 3X
|
|
Model
|
VT3024
|
|
Type
|
Analog proportional solenoid amplifier, no spool feedback
|
|
Compatible Valves
|
4WRZ pilot prop. directional valves; DBEP6 / 3DREP6 prop. pressure valves
|
|
Supply Voltage
|
24 VDC, 22–39 V (nom. +60 % / –5 %)
|
|
Power Draw
|
~30 W
|
|
Command Input
|
±9 V (VT3000 ref); differential ±10 V / ±6 V on some suffixes; Rᵢₙ ≥ 100 kΩ
|
|
Internal Reference
|
±9 V ±1 % stabilized rail
|
|
Output Current
|
20 mA bias … 800 mA max per solenoid
|
|
Coil Load
|
19.5 Ω @ 20 °C (matched prop. solenoid)
|
|
PWM / Dither Freq.
|
160–180 Hz (typ. 170 Hz ±10 %)
|
|
Ramp Time
|
30 ms … ~1 s or 5 s (panel pots / external pot)
|
|
Bias (Null) Current
|
20 mA ±25 %
|
|
Fuse
|
2.5 A slow (5 × 20 mm)
|
|
Temp Drift
|
0.5 % of Iₘₐₓ / K
|
|
Connector
|
32-pin DIN 41612 Type D
|
|
Format
|
Eurocard 100 × 160 mm
|
|
Weight
|
~0.13–0.15 kg
|
|
Operating Temp
|
0 to +50 °C (VT3000 data sheet)
|
|
Mounting
|
VT3002-2X/32 card cage / rack, often fed by VT19083 PSU
|
Core Functions
- Converts ±9 V (or ±10 V diff) analog setpoint → proportional solenoid current
- Ramp generator for accel/decel (shock-free spool motion)
- Step generator for manual valve-position test
- Zero / gain / max-limit trim via on-board potentiometers
- Bias current holds spool at mechanical null
- PWM output stage with dither to reduce stiction
- Reverse-polarity protection + 2.5 A card fuse
- 4 front LEDs (relay/command status on VT3000 pattern)
Typical Applications
- Injection moulding machines (clamp / injection pressure)
- Hydraulic presses & bending machines
- Steel mill roll-gap / tension hydraulics
- Machine-tool hydrostatic feeds
- Test-rig proportional flow/pressure control
There are no reviews yet.