Product Description:

The VT-SR11-1X/1/4WRD16-5X is a plug-in control card from the VT-SWMA Modules series produced by Bosch Rexroth Indramat. Installed in motion-control racks, the module provides signal conditioning and current regulation for proportional valve stages. That function helps machine builders maintain stable flow or pressure loops directly from cabinet electronics.

The card accepts a bipolar supply of ±24 VDC, which the circuit converts to a regulated output of ±15 V ±2% for downstream electronics. Its built-in power stage can source up to 150 mA to drive valve solenoids while maintaining linear response. To reduce static friction, the control loop injects a dither signal at 470 Hz ±5%. Field wiring enters through a 32-pole male, DIN 41612 D connector that mates with standard backplanes and helps reduce wiring errors.

Dynamic behavior is set by an internal oscillator that switches at 5 kHz, keeping current ripple below the magnetic response of most valves. Relay logic on the board changes state in less than 4 ms, which supports quick enable or fault disconnect functions. The physical envelope follows a Eurocard format of 100 × 160 mm, so the module fits existing VT sub-racks without mechanical changes. Coil resistance of 700 Ω, a contact load of 0.5 A, and valve flow current up to ±60 mA define the safe operating window.

Wake Industrial keeps this module in stock. Same-day shipping is available for urgent orders. Each purchase includes a 1-year warranty, and the chat tool available on the website can answer general questions about fault codes.