JS Automation YPV-040, User Manual

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16. Alarm display table
Status Display Description Solution
0 READY Servo system is ready. The main power
cable and the encoder cable from the
servomotor are connected correctly.
The servomotor can start a normal
operation
1 OC An abnormally big instantaneous current
triggers the OC alarm. The Machine will
stop.
Check whether the load exceeds the
rated value, any main circuit
component is damaged, or output is
short-circuited.
2 OV An abnormally high DC Bus voltage due
to too heavy load inertia or frequent
dynamic braking triggers the OV alarm.
The machine will stop.
Check whether the load inertia is over
the specification and take into
consideration an extra regenerative
braking resistor.
3 OL An over 150% rated load lasting for one
minute triggers the OL alarm. The
machine will stop.
Check the reason of overload.
4 OH
The temperature over 135
°
in the
servomotor winding or over 85
°
in the
heat sink of the servo drive triggers the
OH alarm. The machine will stop.
Check the ambient temperature and
the ventilation condition.
5 OS An over 120% of the rated servomotor
speed triggers the OS alarm The Machine
will stop.
Check whether the speed command
exceeds the allowable value or the
load is over the specification.
6 EE A broken encoder wiring or an incorrect
wiring of the UVW feedback signals
triggers the EE alarm. The machine will
stop.
Refer to the wiring diagram and
check the wiring again.
7 LPF Internal power supply of logic block
failure.
Send back to repair.
8 RESET The servo drive control system is reset. The system will start again after the
alarm is cleared.
9 OVF An overflow of the position tracking error
triggers the OVF alarm. . The machine
will stop.
Check whether the load is over the
specification or the frequency of
position pulse command is too high.