Yaskawa U1000 Industrial MATRIX Drive - Manual (Page 66)

i.6 Troubleshooting
NOTICE
Refer to the U1000 Industrial MATRIX Drive Technical Manual SIEP C710636 04 for information on Troubleshooting and
complete product instructions necessary for proper installation, set-up, troubleshooting and maintenance.
The U1000 Industrial MATRIX Drive Technical Manual is posted on the Yaskawa website, www.yaskawa.com.
u Fault Detection
n Fault Displays
Digital Operator Display Fault Name
Aov
Power Supply Overvoltage
The input power supply voltage became equal to or higher than the Input Power Supply Overvoltage
Detection Level.
200 V Class: Approximately 277 Vrms
400 V Class: Approximately 630 Vrms
AUv
Power Supply Undervoltage
The input power supply voltage became equal to or lower than the Input Power Supply Undervoltage
Detection Level (L2-21).
200 V Class: Approximately 150 Vrms
400 V Class: Approximately 300 Vrms
bUS
Option Communication Error
• The connection was lost after establishing initial communication.
• Only detected when the run command frequency reference is assigned to an option card.
CE
MEMOBUS/Modbus Communication Error
Control data was not received for the CE detection time set to H5-09.
CF
Control Fault
The torque limit was reached continuously for three seconds after the Stop command was input and
deceleration was not possible in OLV Control.
CoF
Current Offset Fault
Drive starts operation while the current-detection circuit failure, or the induced voltage remains in the
motor (coasting and after rapid deceleration).
to ,
, ,
to ,
to ,
to ,
to
<1> <2> <3>
CPF00 to CPF03,
CPF07, CPF08,
CPF11 to CPF14,
CPF16 to CPF24,
CPF26 to CPF35,
CPF40 to CPF45
Control Circuit Error
CPF06
Control Circuit Error
There is an error in the data saved to EEPROM.
CPF25 Terminal Board Not Connected
dEv
Speed Deviation (for Control Mode with PG)
The deviation between the speed detection value for the pulse input and the speed reference after speed
agreement was reached exceeded the setting value of F1-10 for the time set in F1-11 or longer when the
Operation Selection at Deviation was set to continue operation (F1-04 = 3).
doH
Damping Resistor Overheat
The temperature of the built-in damping resistor exceeded the set value.
dv1
Z Pulse Fault (CLV/PM control mode only)
The motor turned one full rotation without the Z Pulse being detected.
dv2
Z Pulse Noise Fault Detection (CLV/PM control mode only)
The Z Pulse is out of phase by more than 5 degrees for 10 consecutive revolutions.
dv3
Inversion Detection (CLV/PM control mode only)
The torque reference and acceleration are in opposite directions and the speed reference and actual motor
speed differ by more than 30% for the number of times set to F1-18.
i.6 Troubleshooting
66 YASKAWA ELECTRIC TOEP C710636 04C U1000 Industrial MATRIX Drive Quick Start Guide