Type Drive Responses to Alarms, Faults, and Errors
Operation Errors
When parameter settings conflict with one another or do not match hardware settings (such as
with an option unit), it results in an operation error.
When the drive detects an operation error:
•
The digital operator displays text that indicates the specific error.
•
The multi-function contact output does 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.
u
Alarm and Error Displays
n
Faults
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 135 for more information. Conditions
such as overvoltage or external faults
can trip both faults and minor faults, therefore it is important to note whether the LEDs remain
lit or if the LEDs flash.
Table 5.4 Fault Displays
LED Operator
Display
Name Pg.
CE
MEMOBUS/Modbus
Communication Error
137
CoF Current Offset Fault 137
or
<1>
CPF00
or
CPF01
CPF11 – RAM Fault 137
CPF12 – FLASH Memory
Fault
137
CPF14 – Control Circuit
Fault
137
CPF17 – Timing Fault 137
CPF18 – Control Circuit
Fault
137
CPF02 A/D Conversion Error 137
CPF06
Drive specification
mismatch during Terminal
Board or Control Board
replacement
138
CPF08
EEPROM Serial
Communications Fault
138
LED Operator
Display
Name Pg.
or
<2>
CPF20
or
CPF21
RAM Fault 138
FLASH Memory Fault 138
Watchdog Circuit
Exception
138
Clock Fault 138
CPF22 A/D Conversion Error 138
CPF23 PWM Feedback Data Fault 139
CPF24 Drive Capacity Signal Fault 139
EF0 Option Unit External Fault 139
to EF1 to
EF5
External Fault (input
terminal S1 to S5)
139
Err EEPROM Write Error 140
LF Output Phase Loss 140
oC Overcurrent 140
oFA01 Option Disconnected 141
oH1 Heatsink Overheat 141
oL1 Motor Overload 142
5.3 Drive Alarms, Faults, and Errors
134
YASKAWA ELECTRIC TOEP C710606 25D YASKAWA AC Drive J1000 Installation & Start-Up Manual
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