Explosion-proof electric linear actuator MTR 3 PA-Ex

MTR 3 PA-Ex – explosion-proof electric linear actuator

Standard equipment and functions with DMS3 control unit

• Supply voltage 3×400 V AC
• Terminal board connection
• Protection of the electromotor against overheating
• Switching off in limit positions from position and from thrust
• Adjustable switching-off thrust from 50% to 100%
• Thrust blocking in limit positions
• Thrust blocking during the start
• 7 freely programmable relays R1, R2, RE1 … RE5 (Not valid for Profibus and Modbus)
• 2 relay READY (Not valid for Profibus and Modbus)
• Control by unified signal 0/4 – 20 mA, 4 – 12 mA, 12 – 20 mA, or 0/2 – 10 V (Not valid for Profibus and Modbus)
• Control by permanent voltage (+24 V DC) – OPEN, CLOSE
• Impulse control (inching duty) (+24 V DC) – OPEN, STOP, CLOSE
• Timing mode / regime of operation
• Safety function ESD (failure reaction)
• Electronic position transmitter 4 to 20 mA passive (not for DMS3 in 2P version) (Not valid for Profibus and Modbus)
• Auxiliary voltage output 24 V AC, max. 40 mA for supply of the control inputs
• Output of failure messages
• Space heater operated by control unit
• Communication interface RS 232
• Programme for parameterization setting by PC
• Mechanical connection – pillars
• Manual control
• Enclosure protection IP 66

Additional equipment

• Supply voltage:
  • 3×380 V, 230 V, 220 V / 50 Hz
• ​Local control for actuators with DMS 3 system
• Version with control board PROFIBUS DP V0/V1
• Version with control board MODBUS RTU
• Communication cable DB-9F/RJ45
• Mechanical connection – flange