VT 11123-10

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The Bosch Rexroth Indramat VT 11123-10 servo amplifier, part of the VT Servo Amplifiers series, operates at 24 VDC with a tolerance of +40% / -10%. It has a maximum solenoid current output of 1.75A, adjustable ramp times of approximately 50ms to 5 seconds, and supports input command voltage of 0 to ±10V. The amplifier weighs just 0.16 kg.

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Product Description:

The VT 11123-10 from Bosch Rexroth is an Electronic amplifier module that is specifically developed for the control of proportional solenoids in automation systems. The amplifier guarantees linear output behavior by operating on a regulated 24 VDC power input, which ensures reliable and controlled solenoid actuation.

The VT 11123-10 electronic amplifier is capable of withstanding supply fluctuations without affecting output stability, as it operates within an extended voltage range of 21 V to 35 V. The maximum power consumption for the amplifier module is 28 VA, and its maximum current draw is 1.3 A. The input takes a differential control signal ranging from 0 to +10 V and has an internal input resistance of about 10 kΩ. To control a range of actuator loads, the output current can be adjusted from full output to 10% of the maximum rated value. In compliance with EN 60529, the degree of protection is rated at IP 20. Reliable enclosure integration is made possible by this. The mounting design meets the requirements of EN 60715, which means it can be used consistently in automation settings in industrial settings.

The acceptable operation temperature is 0 to 50 degrees Celsius, and the storage conditions are -25 to 85 degrees Celsius. The amplifier has a small footprint due to its 25 mm width, 79 mm height, and 85.5 mm depth. By adjusting the rise time from around 50 ms to 5 s, the actuator's movement speed can be controlled. Secure and easy electrical connections are made possible by the amplifier's six screw connectors. The lightweight integration of VT 11123-10 amplifier into control consoles is made possible by its total weight of 0.13 kg. It provides electronic short-circuit protection and adjustable ramp control, which stabilizes system transitions and guarantees precise current regulation.

Adjustment Range - Jump Height
0 to approx. 50% of Imax
Adjustment Range - Ramp Time
approx. 50 ms to approx. 5 s
Current Consumption
< 1.3 A
Dimensions (w X H X D)
40 mm x 79 mm x 85.5 mm
Inputs - Command Value Voltage
0 to ±10 V, Input Impedance > 50 kΩ
Inputs - Enable
10 V < UF1/UF2 < 35 V (active) and UF1/UF2 < 8 V (inactive)
Mounting Type
Carrier rail TH 35–7.5 to EN 60715
Operating Range
21 V to 35 V
Operating Voltage
24 VDC +40% / -10%
Outputs - Maximum Solenoid Current
1.75 A (for 4WRA 10, Component Series 1X)
Power Consumption
< 30 VA
Type Of Protection
IP 20 to EN 60529
Weight
0.16 kg

Frequently Asked Questions about VT 11123-10:

Q: Why does VT 11123-10 accept 0–10 V input?

A: The differential 0–10 V input ensures signal clarity and compatibility. It maintains precise solenoid control in automation loops.

Q: Why is VT 11123-10 rated at 28 VA power?

A: The 28 VA rating supports stable current delivery. It avoids voltage drops during full-load operation.

Q: Does VT 11123-10 allow ramp adjustment flexibility?

A: Yes, ramp time is adjustable from 50 ms to 5 s. This helps manage actuator movement and reduce mechanical shock.

Q: Do VT 11123-10 terminals support reliable wiring?

A: Yes, the 6 screw terminals provide secure contact. They ensure robust power and signal transmission.

Q: How does VT 11123-10 handle voltage surges?

A: It operates up to 35 VDC input. This tolerance ensures uninterrupted control during voltage variations.


Internal Product Review

  • ‘‘VT 11123-10 offers accurate output control using adjustable ramp time and 0 to +10 V command input. It supports 1.6 A solenoid output and 5.4 Ω resistance. With 24 VDC input and electronic short-circuit protection, VT 11123-10 ensures stable operation and reliable safety mechanism.’’

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