RE 3581

Electronic positioner with actuator controlling safety functions for electric actuators of ST 5100 series
• Intelligent 3--step controller fitted in the actuator
• Input 4..20mA / Output 4..20mA (max. 500Ω)
galvanic isolated / relay outputs for motor
• Input keys for manual operation
• Automatic adaptation to valve stroke
• Automatic stroke limit without limit switches
• Closing tight function / Command control
• Automatic "switch off function" at blockage
• Characteristic adaptation
• Intelligent 3--step controller fitted in the actuator
• Input 4..20mA / Output 4..20mA (max. 500Ω)
galvanic isolated / relay outputs for motor
• Input keys for manual operation
• Automatic adaptation to valve stroke
• Automatic stroke limit without limit switches
• Closing tight function / Command control
• Automatic "switch off function" at blockage
• Characteristic adaptation