Chapter 14 Fault Codes and Descriptions
CT2000 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
(230V: DC 450V; 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
(230V: DC 450V; 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 (230V: DC
450V; 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
Summary of Contents for CT2000 Series
Page 5: ...Chapter 1 Introduction CT2000 Series 1 2 Model Name VFD 750 CT 43 F 00 A6 Serial Number...
Page 22: ...Chapter 1 Introduction CT2000 Series 1 19 Digital Keypad KPC CC01 KPC CE01 Unit mm inch...
Page 23: ...Chapter 1 Introduction CT2000 Series 1 20 This page intentionally left blank...
Page 41: ...Chapter 4 Wiring CT2000 Series 4 6 This page intentionally left blank...
Page 71: ...Chapter 7 Optional Accessories CT2000 Series 7 18 Wall Mounting Embedded Mounting...
Page 87: ...Chapter 8 Optional Cards CT2000 Series 8 8 PG Card intallation...
Page 88: ...Chapter 8 Optional Cards CT2000 Series 8 9 Disconneting the extension card...
Page 92: ...Chapter 8 Optional Cards CT2000 Series 8 13 PG2 Wiring Diagram...
Page 95: ...Chapter 8 Optional Cards CT2000 Series 8 16 PG2 Wiring Diagram...
Page 117: ...Chapter 8 Optional Cards CT2000 Series 8 38 This page intentionally left blank...
Page 259: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 11...
Page 260: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 12...
Page 263: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 15...
Page 266: ...Chapter 12 Description of Parameter Settings CT2000 Series 12 1 03 18...
Page 397: ...Chapter 13 Warning Codes CT2000 Series 13 8 This page intentionally left blank...
Page 407: ...Chapter 14 Fault Codes and Descriptions CT2000 Series 14 10 This page intentionally left blank...
Page 489: ...Chapter 16 PLC Function CT2000 Series 16 48 LD X1 Load Contact a of X1 OUT Y1 Drive Y1 coil...
Page 592: ...Chapter 16 PLC Function CT2000 Series 16 151...
Page 594: ...Chapter 16 PLC Function CT2000 Series 16 153...
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