Contactor Control

• Full control and monitoring provided by CANopen field bus

• Controls one [ON/OFF] or two [FORWARD/REVERSE] motor contactors.

• Switching contacts rated to 16 Amperes (make/break 4000 VA)

• Switching contacts support withstand inrush of 80 Amperes.

• Two contacts in series to comply with functional safety requirements.

• All relay outputs are protected by internal hardware watchdog timer.

General Purpose Relay

• Additional auxiliary “C-Form” relay output (for general purpose use or upstream power isolation).

Contactor Status Monitoring

• Four (4) opto-isolated 110VAC digital inputs.

• Used for general purpose or for monitoring contactor auxiliary contact status

Motor Current Monitoring

• True RMS current measurement with range from less than 100mA up to 1600 A. Measurement settling time 100 milliseconds

Motor Temperature Monitoring

• Three (3) self-powered, 2-wire PT100 inputs.

• Galvanically-isolated (UL 1577: 5000 V RMS for 1 minute).

• Built-in earth leakage resistance measurement.

Motor Protection Options

• Protection is configurable for each protection skill by host PLC control system in real-time

Give system integrators the flexibility to use built-in protection or custom PLC-managed protection

• Built-in motor protection options:

• Motor Over Temperature Protection (via PT100 temperature sensors)

• Jammed Motor Rotor Protection
(based on motor current measurement)

• Thermal Overload Protection
(based on inverse-time calculation of motor currents)

• Phase Imbalance Protection
(unequal motor currents in 3-phase system)

• Phase Rotation Sequence Verification