YASKAWA FSDrive-MV1000 Series - Page 145

5.3 Types of Faults, Alarms, and Errors
YASKAWA ELECTRIC TOEP C710687 02B FSDrive-MV1000 Instructions 145
Troubleshooting
5
Table 5.7 Fault Displays (2)
n Minor Faults and Alarms
Refer to Table 5.8 for an overview of possible alarm codes. Conditions such as overvoltages can trip faults and alarms. It
is important to distinguish between faults and alarms to determine the proper corrective actions.
When the drive detects an alarm, the ALM indicator LED blinks and the alarm code display flashes. Most alarms trigger
a digital output programmed for alarm output (H2- = 10). A fault (not an alarm) is present if the ALM LED lights
without blinking. Refer to Faults (Drive Faults and Power Cell Faults) on page 144 for information of fault codes.
Table 5.8 Minor Fault and Alarm Displays
Digital Operator
Display
<1> The number of the Power Cell at which the fault has occurred is indicated by “nn”.
<2> Displayed as CPF00 or CPF20 when occurring at drive power up. When one of the faults occurs after successfully starting the drive, the display
will show CPF01 or CPF21.
Name Page
Digital Operator
Display
Name Page
oL1 Motor Overload 157 SEr Too Many Speed Search Restarts 159
oL2 Drive Overload 157
SYNC
Commercial Synchronous Switching
Error
159
oL3 Overtorque Detection 1 157
oL4 Overtorque Detection 2 158 TME Transformer Temperature Fault 159
oL5 Mechanical Weakening Detection 1 158 TME1 Transformer Temperature Fault 1 159
oL7 High Slip Braking oL 158 TME2 Transformer Temperature DI Fault 160
OOV Output Overvoltage 158
TME3
Transformer Temperature Sensor
Disconnection
160
oPr
External Digital Operator Connection
Fault
158
UL3 Undertorque Detection 1 160
oS
Overspeed
(for Control Mode with PG)
158
UL4 Undertorque Detection 2 160
UL5 Mechanical Weakening Detection 2 160
PGo
PG Disconnect
(for Control Mode with PG)
159
Uv1 Undervoltage 161
Uv3 In-rush Prevention Circuit Error 161
PGoH
PG Hardware Fault
(detected when using a PG-X3 option)
159 VUB Voltage Unbalance 161
Digital
Operator
Display
Name
Minor Fault
Output
(H2- = 10)
Page
Digital
Operator
Display
Name
Minor Fault
Output
(H2- = 10)
Page
BAT Battery Voltage Low Yes 162 oL1 Motor Overload Yes 166
bb Drive Baseblock (Voltage) No 162 oL3 Overtorque 1 Yes 167
bUS Option Communication Error Yes 162 oL4 Overtorque 2 Yes 167
CALL
Serial Communication
Transmission Error
Yes 162 oL5
Mechanical Weakening
Detection 1
Yes 167
CE
MEMOBUS/Modbus
Communication Error
Yes 163 oS
Overspeed (for Control Mode
with PG)
Yes 167
CrST Cannot Reset No 163 PASS
MEMOBUS/Modbus Comm.
Test Mode Complete
No 167
dEv
Speed Deviation (for Control
Mode with PG)
Yes 163 PGo
PG Disconnect (for Control
Mode with PG)
Yes 167
dnE Drive Disabled Yes 163 PGoH
PG Hardware Fault (detected
when using a PG-X3 option)
Yes 167
EF
Forward/Reverse Run
Command Input Error
Yes 163 rUn Motor Switch during Run Yes 168
EF0 Option Card External Fault Yes 164
SE
MEMOBUS/Modbus
Communication Test Mode
Error
Yes 168
EF1
to
EF16
External Fault (input
terminal)
Yes 164
FAn Fan Fault Yes 165 TMA1
Transformer Temperature
Fault
Yes 168