Chapter 14 Error CodesMS300 (High Speed Model)
14-2
ID No.
Display Descriptions
4
When (one of) the output terminal(s) is grounded, short circuit current is more
than 50 % of AC motor drive rated current, the AC motor drive power module
may be damaged.
NOTE: The short circuit protection is provided for AC motor drive protection,
not for protecting the user.
Corrective Actions
Check the wiring connections between the AC motor drive and motor for
possible short circuits, also to ground.
Check whether the IGBT power module is damaged.
Check for possible poor insulation at the output.
6
Over-current during stop. Hardware failure in current detection.
Corrective Actions
Return to the factory.
7
DC-BUS over-voltage at constant speed (230V: 450 VDC; 460 V: 900 VDC)
Corrective Actions
Check if the input voltage spike without the rated AC motor drive input
voltage range.
Check for possible voltage transients.
If DC-BUS over-voltage due to regenerative voltage, please increase the
acceleration time or add an optional brake resistor.
8
DC-BUS over-voltage during deceleration (230V: 450 VDC; 460V: 900 VDC)
Corrective Actions
Check if the input voltage spike without the rated AC motor drive input
voltage range.
Check for possible voltage transients.
If DC-BUS is over-voltage due to regenerative voltage, please increase
the deceleration time or add an optional brake resistor.
9
DC-BUS over-voltage at constant speed (230V: 450 VDC; 460V: 900 VDC)
Corrective Actions
Check if the input voltage spike without the rated AC motor drive input
voltage range.
Check for possible voltage transients.
If DC-BUS is over-voltage due to regenerative voltage, please increase
the deceleration time or add an optional brake resistor.
10
DC-BUS over-voltage at stop. Hardware failure in voltage detection.
Corrective Actions
Check if the input voltage spike without the rated AC motor drive input
voltage range.
Check for possible voltage transients.
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