Fanuc Spindle Amplifier Alarm 9, 09

Fanuc 6055 digital spindle amplifiers
Fanuc 6072, 6078, 6082, 6088, 6102 amps
Fanuc 6111, 6112, 6116, 6141, 6142 amps
Fanuc 6059, 6060 spindle amps
Fanuc 6063, 6064 serial spindle amps
Fanuc 6044, 6052 analog spindle amps                            

The temperature of the heat sink of the SPM main circuit has risen to the set value. This alarm is issued for SPM-15 and up or SPM-15HV and later. With SPM-2.2 to SPM-11 and SPM-11HV, however, alarm code 12 is issued for the same cause.

1. If this alarm is issued during cutting (the heat-sink temperature is high)
   1. If this alarm is issued when the load meter reads a value below the continuous rating of the amplifier, check the cooling state of the heat sink
      1. If the cooling fan is stopped, check the power supply (connector CXIA/B). If the cooling fan is still inoperative, replace the SPM with a new one.
      2. When the ambient temperature is higher than the specified temperature, lower the ambient temperature to satisfy the specification.
   2. When this alarm is issued because the load meter reads a value above the continuous rating of the amplifier, improve the use method.
   3. When the heat sink on the back of the amplifier is too dirty, clean the heat sink, for example, by blowing air. Consider the use of a structure that prevents the heat sink from being directly exposed to a coolant.
2. If this alarm is issued under a light load (the heat sink temperature is high)
   1. When the frequency of acceleration/deceleration is too high set such a use condition that the average including output at acceleration/deceleration does not exceed the continuous rating.
   2. The parameters specific to the motor are not set correctly. Refere to "FANUC AC SPINDLE MOTOR series Parameter Manual (B-65160E)."
3. If this alarm is issued when the heat sink temperature is low Replace the SPM.