
B–65192EN/02
3. SPECIFICATION
13
Table 3.2 Protection and Error Detection Function (2/2)
Type
LED indication Description
L–axis
over–current
alarm (HCL)
This alarm occurs if an abnormally high
current flows in the L–axis motor.
M–axis
over–currenta-
larm (HCM)
This alarm occurs if an abnormally high
current flows in the M–axis motor.
L–and M–axis
over–current
alarm (HCLM)
This alarm occurs if an abnormally high
current flows in the L–and M–axis mo-
tors.
L–axis IPM
alarm (IPML)
This alarm is detected by the IPM (intel-
ligent power module) of the L–axis.
(Note 1)
M–axis IPM
alarm (IPMM)
This alarm is detected by the IPM (intel-
ligent power module) of the M–axis.
(Note 1)
L–and M–axis
IPM alarm
(IPMLM)
This alarm is detected by the IPM (intel-
ligent power module) of the L–and M–
axes.
(Note 1)
Circuit
breaker
Trips The circuit breaker trips if an abnormal-
ly high current (exceeding the working
current of the circuit breaker) flows
through it.
NOTE
1 The IPM can detect the following alarms.
S Over–current
S Over–heat
S Drop in IPM control power voltage
2 When the control power is separated from the main power,
if the circuit breaker for the servo amplifier is off, low DC link
voltage alarm (LVDC) is detected.