VT-SR1-1X/ES43A8-2424 Bosch Rexroth Indramat
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MPN: R978918356
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The Bosch Rexroth Indramat VT-SR1-1X/ES43A8-2424 is part of the VT-SWMA Modules series and features analog electronics with a Euro-card design. The module measures 100 by 160 mm and uses a 32-pin DIN 41612-D connection. It operates with a coil resistance of 700 ohms, dither frequency of 340 Hz, and solenoid current of 60 mA.
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Product Description:
The VT-SR1-1X/ES43A8-2424 is an analog driver card produced by Bosch Rexroth Indramat for the VT-SWMA Modules series. Installed in a standardized Euro-card rack, the module conditions control signals and supplies regulated current to proportional solenoid valves. By translating a ±10 V command from a PLC into proportional valve current, with -10 V corresponding to +60 mA, the board enables closed-loop adjustment of hydraulic actuators used in presses, molding machines, and other industrial motion axes.
Its physical footprint is 100 × 160 mm, allowing direct insertion into a 19-inch card cage without custom brackets. Electrical connection is handled through a 32-pin DIN 41612-D male header, which carries power, command voltage, feedback, and relay contacts through a single backplane plug. The electronics draw only 0.15 A from the system’s ±15 V rails, minimizing heat load inside the cabinet. An internally generated dither signal at 340 Hz ±5% with an amplitude of 3 mApp reduces static friction in the valve spool and improves flow linearity. For command inputs, the card presents an input resistance of 50 kΩ, so it imposes negligible loading on upstream analog outputs while maintaining immunity to noise.
Stable operation depends on a reference supply of ±15 V ±2% that is distributed across the rack to all VT-SWMA cards. When downstream logic demands a rapid hydraulic shutoff, an onboard relay closes within 4 ms once the pickup threshold of +24 V is reached. The power stage can deliver a steady solenoid current of 60 mA into coils with 700 Ω resistance, matching the valve requirement while remaining inside the analog linear range. Despite the integrated amplifier, signal shaper, and relay, the board’s mass is only 0.3 kg, which simplifies handling during installation and keeps overall rack weight low.
Frequently Asked Questions about VT-SR1-1X/ES43A8-2424:
Q: What type of connection is provided on the VT-SR1-1X/ES43A8-2424 module?
A: The VT-SR1-1X/ES43A8-2424 uses a 32-pin DIN 41612-D connector for electrical connections.
Q: What is the physical design and size of the VT-SR1-1X/ES43A8-2424 card?
A: This unit is designed as a Euro-card with dimensions of 100 x 160 mm.
Q: What is the dither frequency used in the VT-SR1-1X/ES43A8-2424 module?
A: The module operates with a dither frequency of 340 Hz, with a tolerance of ±5%.
Q: What type of electronics does the VT-SR1-1X/ES43A8-2424 feature?
A: It is equipped with analog electronics for precision control and signal processing.
Q: What reference voltage does the VT-SR1-1X/ES43A8-2424 require for operation?
A: The reference voltage required for this module is ±15 V with a tolerance of ±2%.
