Product Description:

The VT 5006 S16 is an input-output driver card produced by Bosch Rexroth Indramat for the VT-5000 IO Cards series. Installed in valve-amplifier racks, the board converts reference voltages into controlled coil currents so a PLC can actuate hydraulic valves from a central backplane. It occupies one slot in a 32-pin rack and maintains consistent performance in presses, steel mills, and injection-molding lines across demanding duty cycles.

Normal operation requires an operating voltage of 24 VDC, and the card draws less than 2 A; this low input current allows multiple boards to share a single supply rail. Four differential command channels accept ±9 V references for controlling connected valve functions. An internal oscillator operating at 2.5 kHz modulates the drive stage, producing a smooth average current while limiting core heating. The amplifier can deliver up to 2.2 A to each solenoid, providing sufficient output for typical NG6 and NG10 valves. The enable line becomes active once 8.5 V is present, preventing inadvertent energization during low-voltage conditions. A 30 mA position-driver output is available for external feedback transducers used by the closed-loop channel.

The card tolerates input excursions down to 22 V and up to 35 V, keeping the control logic active during brief brownouts or overvoltage events. Protection on the power lead is provided by a time-lag fuse rated at 2.5 A T, coordinated with the 10 Ω solenoid winding so faults clear without damaging the board. Total demand on the supply rail stays below 50 VA, minimizing heat inside the cabinet. The relay stage uses a 2,150 Ω coil that pulls in at 16.8 V and releases at 2.4 V, providing predictable sequencing of auxiliary actuators. The relay thresholds and coil resistance allow safe shutdown times to be calculated for orderly de-energization during emergency stops.