Alarm Detection - YASKAWA D1000 Series Instruction Manual

5.3 Alarm Detection

5.3 Alarm Detection
◆ Alarm Codes, Causes, and Possible Solutions
Alarms are converter protection functions that do not necessarily cause the converter to stop. After removing the cause of
an alarm, the converter 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-
Note: If a multi-function output is set to close when an alarm occurs (H2-
reached, triggering alarms LT-1 through LT-4 (triggered only if H2-
Digital Operator
Minor Fault Name
Display
Communication Option
Station Number Setting
AEr Error (CC-Link,
MECHATROLINK-II)
Cause
Station number is set outside the possible
setting range.
Digital Operator
Minor Fault Name
Display
Power Supply
Aov
Cause
The input power supply voltage is too high.
Digital Operator
Minor Fault Name
Display
Power Supply
AUv
Undervoltage
Cause
The power supply voltage is low.
A phase loss occurred in the input power
supply.
Voltage detection failed.
Digital Operator
Minor Fault Name
Display
bb
Cause
External baseblock signal was entered via one
of the multi-function input terminals (S1 to S8).
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Table 5.7 Alarm Codes, Causes, and Possible Solutions
Option card node address is outside of the acceptable setting range.
CANopen,
Set the station number of the option card correctly.
The input power supply voltage became equal to or higher than the Input Power
Supply Overvoltage Detection Level.
Overvoltage 200 V Class: Approx. 277 Vac
400 V Class: Approx. 554 Vac
Reduce the voltage to within the range in the power supply specifications.
The input power supply voltage became equal to or lower than the Input Power
Supply Undervoltage Detection Level.
200 V Class: Approx. 150 Vac
400 V Class: Approx. 300 Vac
Increase the power supply voltage.
Check the input power supply for phase loss or an imbalance in the interphase voltages.
Investigate and correct the cause and then reset the fault.
Correctly wire r1/ 11, 1/ 21, and t1/ 31.
converter output interrupted as indicated by an external baseblock signal.
Baseblock
Check external sequence and baseblock signal input timing.
YASKAWA ELECTRIC TOEP C710656 07A YASKAWA Power Regenerative Converter - D1000 Instruction Manual
= 10), that output terminal will be triggered.
= 10), it will also close when maintenance periods are
= 2F).
Detail
Possible Solutions
Detail
Possible Solutions
Detail
Possible Solutions
Detail
Possible Solutions
Alarm
Output
(H2- =10)
YES
Alarm
Output
(H2- =10)
YES
Alarm
Output
(H2- =10)
YES
Alarm
Output
(H2- =10)
N.A.