Yaskawa CIMR-PUxA - Manual (Page 146)

5.3 Alarm Detection
u Alarm Codes, Causes, and Possible Solutions
Alarms are drive protection functions that do not necessarily cause the drive to stop. After removing the cause of an alarm,
the drive will return to the same status is was before the alarm occurred.
When an alarm has been triggered, the ALM light on the digital operator display blinks and the alarm code display flashes. If
a multi-function output is set for an alarm (H2-oo = 10), that output terminal will be triggered.
Note: If a multi-function output is set to close when an alarm occurs (H2-oo = 10), it will also close when maintenance periods are reached,
triggering alarms LT-1 through LT-4 (triggered only if H2-oo = 2F).
Table 5.3 Alarm Codes, Causes, and Possible Solutions
Digital Operator Display Minor Fault Name
AEr
Station Address Setting Error (CC-Link, CANopen, MECHATROLINK)
Option card node address is outside of the acceptable setting range.
bb
Baseblock
Drive output interrupted as indicated by an external baseblock signal.
boL
Braking Transistor Overload Fault
The braking transistor in the drive has been overloaded.
bUS
Option Communication Error
• The connection was lost after initial communication was established.
• Assign a Run command frequency reference to the option.
CALL
Serial Communication Transmission Error
Communication has not yet been established.
CE
MEMOBUS/Modbus Communication Error
Control data was not received correctly for two seconds.
CrST Cannot Reset
dnE Drive Disabled
EF
Forward/Reverse Run Command Input Error
Both forward run and reverse run closed simultaneously for longer than 0.5 s.
EF0
Option Card External Fault
An external fault condition is present.
EF1
External Fault (Input Terminal S1)
External fault at multi-function input terminal S1.
EF2
External fault (input terminal S2)
External fault at multi-function input terminal S2.
EF3
External fault (input terminal S3)
External fault at multi-function input terminal S3.
EF4
External fault (input terminal S4)
External fault at multi-function input terminal S4.
EF5
External fault (input terminal S5)
External fault at multi-function input terminal S5.
EF6
External fault (input terminal S6)
External fault at multi-function input terminal S6.
EF7
External fault (input terminal S7)
External fault at multi-function input terminal S7.
5.3 Alarm Detection
146 YASKAWA ELECTRIC TOEP YAIP1U 01B YASKAWA AC Drive - P1000 Quick Start Guide