VARAN Stepper Module Enable Input The VST 012 is a VARAN module designed for the control of a stepper motor up to a maximum 10 A RMS. The available operating modes are full step, half step and micro step. The maximum sw'tching frequency of the output stage is 50 kHz. The motor output is released through the Enable input. An incremental encoder input is available for position control of the stepper motor. The module also provides four digital inputs and four digital outputs. The VARAN Out port allows the configuration of the VARAN bus in a linear structure. Number of inputs Input voltage Signal level Switching threshold Input current Input delay Status display typically +9.5 V typically 5 mA at +24 V typically 5 ms LEDs grun Digital Inputs Number of inputs Input voltage Signal level Switching threshold Input current Input delay Status display Digital Outputs typically +9.5 V typically 5 mA at +24 V typically 10 pis LEDs grun 1x VARAN Out (RJ45) (maximum length: 100 m) Incremental Encoder Input Stepper Motor Output Output current over the environmental maximum 10 A RMS continuous current at 45 °C temperature maximum 8.6 A RMS continuous current at 50 °C maximum 6.3 A RMS continuous current at 55 °C maximum 5 A RMS continuous current at 60 °C MOTION CONTROL SYSTEM

Intermediate circuit capacitance Step resolution Voltage measurement 440 pF 32 micro steps per full step Notes with an under voltage < 15 V or over voltage > 73 V, the motor output is shut down through the hardware. Power supply +24 V Supply voltage > 18 V (DC OK-LED lights green) Supply voltage stepper motor Supply voltage > 18 V and < 70 V (DC OK-LED lights green) Storage temperature Environmental temperature Humidity EMC resistance EMC noise generation Shock resistance Protection Type -20 ... +85 °C 0 ... +60 °C 0-95 %, non-condensing in accordance with EN 61000-6-2 (industrial area) in...