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– 4 – Communication
Error Communication error between control board and power board
Error
consequence
Drive switch off . No brake effective
Error cause
• Loose contact in flat ribbon cable
• Control board (A3) defective
• Power board (A1) defective
Error code reset MAINS RESET after stand still.
If the MAINS RESET performed before stand still, the target speed
will be indicated in the display until standstill.
– 5 – Overload
Error Power board detects overload
Error
consequence
Drive switches off. No brake effective
Error cause
• Power board (A1) defective
• Motor defective (to low impedance or motor bearings are
defective)
Measurement Measure motor coil, see chapter 9.2.
Error code reset Perform a MAINS RESET after standstill
– 6 – Overvoltage
Error Overvoltage in intermediate circuit.
This error normally only occur when the drive is being braked
Error
consequence
Drive switches off. No brake effective
Error cause
• Power board (A1) defective
• Brake resistor defective
Measurement Measure intermediate voltage, see chapter 9.2.6
Error code reset Perform a MAINS RESET after standstill.
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