PIM00411
13-5
Warning
Code
Name
Reason
Countermeasures
The cooling fan for controller
is stopped
・
Replace the fuse for cooling
fan
・
Replace the cooling fan
・
Replace the controller
Radiator is clogged
・
Replace or clean the radiator
L45
Fin temperature abnormal
warning
Fin temperature exceeded the
specified value 73
℃
for 10
seconds or more
Rotation speed of the motor is
rising
・
Check the leakage amount in
the main unit side circuit
・
Check the setting of the high-
pressure safety valve
・
Replace the motor pump
The power supply voltage is
low
・
Check the power supply voltage
in monitor mode [n12: main
circuit voltage], and make it in
the required range
Pump failure
・
Replace the motor pump
L60
Pressure deviation
abnormal warning
Current command is
saturated
Encoder phase is shifted by
noise (no F)
・
Add a noise filter
L63
Pressure switch activation
Pressure switch is activated
Pressure becomes less than the
setting value of the parameter
"P01: Pressure switch"
・
If there is no abnormality in
main machine, please review
the parameter settings for the
pressure switch.
Please refer to
the "12.5 Pressure switch
setting" for more information.
13.2
Periodic inspection
CAUTION
●
Please wear gloves and protective glasses. And please work after turning the power OFF.
●
Please note that the foreign matters may enter your eyes at the time of air blow.
●
Please note that the oil will flow out from the pipe during decomposition. And please make sure that there
is no residual pressure in the pipe.
●
If the hydraulic oil in the pipe and cylinder came back to the tank, there is a risk of overflow from the tank.
Do not let the hydraulic oil in the cylinder flow to the tank. Please let the oil return to the oil pan.
●
Please make sure that there is no abnormal vibration, abnormal sound or heat generation in this product.
Item
Inspection
Time
Inspection Method
◇
Hydraulic oil
・
Oil level check
・
Oil temperature check
・
Oil color check
・
At any time
・
At any time
・
Once / half
a year
・
Please make sure you have enough oil.
Check the hydraulic oil for whitish muddiness and air bubbles.
・
Make sure that the oil temperature is 60
℃
or less.
(Normally, use the oil at 15 to 50
℃
.)
・
Deterioration of hydraulic oil can be checked by color. If the
hydraulic oil turns brownish (ASTM L4 level: bright yellow),
replace it.
* Please check the "3.2.2 Product Common Specifications" for
specification of the hydraulic oil.
◇
Motor cooling fan
・
Once / a
month
・
Please confirm the motor cooling fan is rotating, and the dust is not
accumulated.
・
If the dust is accumulated on the end, the cooling effect will be fall.