SP9012 SSPA:12 Over current Power Circuit Fanuc

Hello,
I have alarm SP9012 (S1)SSPA: 12 OVERCURRENT POWER CIRCUIT from Spindle Amplifier aiSP15 A06B-6141-H015#H580.
I checked:
-power cable from Spindle Amplifier to Spindle Servo Motor and it is good.
-I measured insulation resistance with Megohm meter from spindle servo motor and it is ok .
On Spindle Amplifier aiSP15 A06B-6141-H015#H580 I have alarm 12.
After Spindle amplifier I have a star delta circuit and I measured cabels and relays and they are good.
I opened the Spindle Amplifier but I dind't find electrical diagram for:
-IGBT A50L-0001-0374 6MBP160RUA060F-01
-OKAYA PC63D630-225K

OKAYA PC63D630-225K:
I measured capacitance from pin1 to 2 = 2.07 uF
pin 2 to 3 = 0
pin 1 to 3= 0
I didn't find electrical drawing.
If someone has changed one of this maybe can help me. (Please check the picture)

IGBT A50L-0001-0374 6MBP160RUA060F-01:
I measured:
From P to W,U,V-0.42V
From N to W,U,V-0.42V
From P to B- 0V
From B to N- 0V
If someone has changed one of this maybe can help me. (Please check the picture)
I didn't find electrical drawing

Some advice will be appreciated for what to change.