KOLLMORGEN AKM series synchronous servo motor

Motor runaway motor phase sequence error or amplifier parameter (such as pole pairs) setting error 1. Emergency stop; 2. Correct the phase sequence or amplifier parameters; 3. Re execute motor identification

Amplifier reports' output stage fault '1. Motor cable short circuit/grounding; 2. Motor winding short circuit: 1. Measure the insulation resistance of the cable (≥ 1M Ω); 2. Disassemble the motor and inspect the winding (replace if burned out)

The amplifier reports "motor overheating". 1. The PTC thermistor is disconnected; 2. Load overload; 3. Poor heat dissipation: 1. Check the PTC wiring; 2. Reduce the load or increase the motor model; 3. Clean the cooling channels and add cooling fans

Brake not braking 1. Brake coil burned out; 2. Axial force overload at the end of the shaft; 3. Insufficient brake torque. 1. Measure the resistance of the brake coil (normally around 6-8 Ω); 2. Check if the axial force is ≤ FR/3 and replace the damaged bearing; 3. Confirm that the brake model matches the motor

Key safety warning

Electrical safety: There may be a high voltage of 900V at the power end of the motor. After power failure, the residual voltage of the capacitor needs to be reduced to the safe value (<40V) within 5 minutes. Before operation, the DC bus voltage must be measured; PE wiring cannot be omitted (leakage current>3.5mA, double PE or large section PE wire to prevent electric shock).

Mechanical safety: The surface temperature of the motor during operation may exceed 100 ℃, and direct touch is prohibited; The keyway at the shaft end needs to be installed with a key before operation to avoid injury caused by centrifugal force throwing out the key; The vertical axis must be equipped with mechanical braking (the holding brake is only used as an auxiliary and requires dual protection in case of malfunction).

Environmental safety: Prohibited from use in explosive or corrosive gas/liquid environments; The motor should be stopped immediately after water ingress, and the insulation resistance (≥ 1M Ω) should be measured after drying before restarting, otherwise it may be short circuited and burned out.