The coupling module is designed for three-point motor control. To minimize stress on the drive system when the motor is switched from stage 2 to stage 1, stage 2 is first shut off and stage 1 only engaged after a delay of <60 ms. A manual control facility including timing function is incorporated for servicing purposes.
• Interlocked relays
• Manual control level ( 0 – 1 – 2 )
• Manual checkback function
• Connection with screw-type terminals
• Operating voltage: 24V AC/DC
• Operating voltage range: 90 % to 110 % of operating voltage
• Current consumption: max. 30 mA
• Input current at contacts B1/B2: max. 4 mA
• Response time: 20 ms
• Release time: 20 ms
• Delay stage 2 to stage 1: less than 60 ms
KMAi-E08:Setpoint generator,Manual control level with checkback function,LED brightness proportional to control variable
KMA-E08: Analog 0-10Volt control selector with choice of Automatic, ON, OFF, with feedback
KRA-S12/21-21-21: Coupling Device 3 changeover contacts, 24 V AC/DC
KMAi-E08:Setpoint device,Manual control level with checkback,LED brightness proportional to control variable
KMA-E08: Analog 0-10Volt control selector with choice of Automatic, ON, OFF, with feedback 
KRA-S12/21-21-21: Coupling Device
MOTOR CONTROL
