Chapter 14 Fault Codes and Descriptions |CFP2000 Series
14-2
ID* Fault Name Fault Descriptions Corrective Actions
6
ocS
Oc at stop
Fault
Hardware failure in
current detection
Return to the factory
7
ovA
Ov at accel
Fault
DC BUS over-voltage
during acceleration
(460V: DC 900V)
1. Check if the input voltage falls within the rated AC
motor drive input voltage range.
2. Check for possible voltage transients.
3. If DC BUS over-voltage due to regenerative
voltage, please increase the acceleration time or
add an optional brake resistor.
8
ovd
Ov at decel
Fault
DC BUS over-voltage
during deceleration
(460V: DC 900V)
1. Check if the input voltage falls within the rated AC
motor drive input voltage range.
2. Check for possible voltage transients.
3. If DC BUS over-voltage due to regenerative
voltage, please increase the Deceleration Time or
add an optional brake resistor.
9
ovn
Ov at normal SPD
Fault
DC BUS over-voltage at
constant speed (460V: DC
900V)
1. Check if the input voltage falls within the rated AC
motor drive input voltage range.
2. Check for possible voltage transients.
3. If DC BUS over-voltage due to regenerative
voltage, please increase the Deceleration Time or
add an optional brake resistor.
10
ovS
Ov at stop
Fault
Hardware failure in
voltage detection
1. Check if the input voltage falls within the rated AC
motor drive input voltage range.
2. Check for possible voltage transients.
11
LvA
Lv at accel
Fault
DC BUS voltage is less
than Pr.06-00 during
acceleration
1. Check if the input voltage is normal
2. Check for possible sudden load
12
Lvd
Lv at decel
Fault
DC BUS voltage is less
than Pr.06-00 during
deceleration
1. Check if the input voltage is normal
2. Check for possible sudden load
13
Lvn
Lv at normal SPD
Fault
DC BUS voltage is less
than Pr.06-00 in constant
speed
1. Check if the input voltage is normal
2. Check for possible sudden load
14
LvS
Lv at stop
Fault
DC BUS voltage is less
than Pr.06-00 at stop
1. Check if the input voltage is normal
2. Check for possible sudden load
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