7
-18
* 1. Refer to
MECHATROLINK COMMUNICATIONS INTERFACE CARD INSTRUCTIONS (TOBPC73060008)
for details.
* 2. For details on replacement, refer to
Chapter 8 Maintenance and Inspection
RUNC
（闪烁）
外部运
行输入
不能
复位
Reset during Run Command Input
Error
The reset signal was input during Run
Command input from an external ter-
minal or other source.
-
Check that a Run Command is not
being input from an external terminal
or other source.
E5
（闪烁）
SI-T
WDT
SI-T Watchdog Error Detected
A Watchdog error was detected when
the Run Command or a frequency ref-
erence was set from an option board
and continuous operation was set for
the E5 operation selection.
Synchronization error between master
controller and Inverter for control
data.
Check the communications timing
such as communications cycle.
*1
AEr
（闪烁）
SI-T
地址
故障
SI-T Station Number Setting Error
Station number of SI-T option board
was out of setting range.
Station number setting error.
Check the setting of the station num-
ber.
*1
Circuit of SI-T option board is faulty.
Check the communications devices
and signals.
*1
CyC
（闪烁）
SI-T
周期
故障
SI-T Communications Cycle Set-
ting Error
Communications cycle of SI-T option
board was out of range.
Communications cycle of SI-T option
board set in master controller was out
of range.
Check the communication cycle of SI-
T option board set in master control-
ler.
*1
BB
（闪烁）
基极
封锁
Receiving External Baseblock
Command
An external baseblock signal was
input from a multi-function input ter-
minal, and the Inverter output was
shut down.
An external baseblock signal was
input from a multi-function input ter-
minal.
Check the external sequence.
HCA
（闪烁）
电流
警告
Current Alarm
The output current has exceeded the
overcurrent alarm level (over 150% of
the rated current).
The load is too heavy or the accel/
decel time is too short.
Increase the acceleration/deceleration
time.
Either a specialized motor or an
excessively large motor is being used.
Verify the setting for the Inverter
capacity.
The current has risen too high while
performing speed search either during
a momentary loss in power or during
a fault restart.
Momentary losses in power or fault
restarts may occasionally trigger an
overcurrent alarm, and are not neces-
sarily indicators of an overcurrent
problem.
LT-C
（闪烁）
电容
维护
时期
Electrolytic Capacitor Maintenance
Timer
Monitor U1-61 has reached 100%.
The electrolytic capacitors have
reached their estimated maintenance
time period.
Reset constant o2-18 to “0%” after
replacing
*2
the electrolytic capacitors.
LT-F
（闪烁）
冷却扇
维护
时期
Cooling Fan Maintenance Timer
Monitor U1-63 has reached 100%.
The cooling fan has reached its esti-
mated maintenance time period.
Replace the cooling fan
*2
and set con-
stant o2-10 to “0H”.
Table 7.3 Alarm Displays and Processing (Continued)
Display
Meaning
Probable causes
Corrective Actions
