Drive Alarms, Faults, And Errors; Drive Alarms, Faults, And Errors; Types Of Alarms, Faults, And Errors; Alarm And Error Displays - YASKAWA V1000 Series Technical Manual

6.3 Drive Alarms, Faults, and Errors

6.3

Drive Alarms, Faults, and Errors

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Types of Alarms, Faults, and Errors

Check the LED operator for information about possible faults if the drive or motor fails to operate.
58.
If problems occur that are not covered in this manual, contact the nearest Yaskawa representative with the following information:
• Drive model
• Software version
• Date of purchase
• Description of the problem
Table 6.4 contains descriptions of the various types of alarms, faults, and errors that may occur while operating the drive.
Contact Yaskawa in the event of drive failure.
Type
When the drive detects a fault:
• The digital operator displays text that indicates the specific fault and the ALM indicator LED remains lit until the fault is reset.
• The fault interrupts drive output and the motor coasts to a stop.
Faults
• Depending on the setting, the drive and motor may stop via different methods than listed.
• If a digital output is programmed for fault output (H2-oo = E), it will close if a fault occurs.
• When the drive detects a fault, it will remain inoperable until that fault has been reset.
When the drive detects an alarm or a minor fault:
• The digital operator displays text that indicates the specific alarm or minor fault and the ALM indicator LED flashes.
• The motor does not stop.
Minor Faults and Alarms
• One of the multi-function contact outputs closes if set to be tripped by a minor fault (H2-oo = 10), but not by an alarm.
• The digital operator displays text indicating a specific alarm and ALM indicator LED flashes.
• Remove the cause of an alarm or minor fault to automatically reset.
When parameter settings conflict with one another or do not match hardware settings (such as with an option card), it results in an operation error.
When the drive detects an operation error:
• The digital operator displays text that indicates the specific error.
Operation Errors
• Multi-function contact outputs do not operate.
• When the drive detects an operation error, it will not operate the motor until the error has been reset. Correct the settings that caused the operation error to reset.
Tuning errors occur while performing Auto-Tuning.
When the drive detects a tuning error:
• The digital operator displays text indicating the specific error.
Tuning Errors
• Multi-function contact outputs do not operate.
• Motor coasts to stop.
• Remove the cause of the error and repeat the Auto-Tuning process.

Alarm and Error Displays

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Faults
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When the drive detects a fault, the ALM indicator LEDs remain lit without flashing. If the LEDs flash, the drive has detected a minor fault or alarm.
Refer to Minor Faults and Alarms on page 227
to note whether the LEDs remain lit or if the LEDs flash.
LED Operator Display Name
bUS Option Communication Error
CE MEMOBUS/Modbus Communication Error
CF Control Fault
CoF Current Offset Fault
CPF02 A/D Conversion Error
CPF03 PWM Data Fault
Drive specification mismatch during Terminal
CPF06
Board or Control Board replacement
CPF07 Terminal Board Communication Fault
CPF08 EEPROM Serial Communications Fault
CPF11 RAM Fault
CPF12 FLASH Memory Fault
CPF13 Watchdog Circuit Exception
CPF14 Control Circuit Fault
CPF16 Clock Fault
CPF17 Timing Fault
CPF18 Control Circuit Fault
CPF19 Control Circuit Fault
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Table 6.4 Types of Alarms, Faults, and Errors
Drive Responses to Alarms, Faults, and Errors
for more information. An overvoltage situation trips both faults and minor faults, therefore it is important
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YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
Refer to Using the Digital LED Operator on page
Refer to Fault Reset Methods on page
LED Operator Display Name
RAM Fault
FLASH Memory Fault
or CPF20or
CPF21
Watchdog Circuit Exception
Clock Fault
oH3 Motor Overheat 1 (PTC input)
oH4 Motor Overheat 2 (PTC input)
oL1 Motor Overload
oL2 Drive Overload
oL3 Overtorque Detection 1
oL4 Overtorque Detection 2
oL5 Mechanical Weakening Detection 1
oL7 High Slip Braking OL
oPr Operator Connection Fault
CPF22 A/D Conversion Error
CPF23 PWM Feedback Data Fault
CPF24 Drive Capacity Signal Fault
Excessive Speed Deviation(for Simple V/f with
dEv
PG)
EF0 Option Card External Fault
EF1 to EF7 External Fault (input terminal S1 to S7)
to
247.
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