
B–63505EN/02
7.TROUBLESHOOTING
245
(3)Manual handle feed multiplication is not correct
Check the following signals using PMC’s PCDGN. Also confirm the
following parameters based on the parameter list.
#7
G0019
#6 #5
MP2
#4
MP1
#3 #2 #1 #0
↓↓
MP2 MP1 Multiplication
0 0 1
1 0 10
0 1 m
1 1 n
7113 Magnification of handle feed m(1 to 127)
7114 Magnification of handle feed n(1 to 1000)
#7
7102
#6 #5 #4 #3 #2 #1 #0
HNGx
#0(HNGx) Direction of MPG and travel of machine
0 : same direction
1 : reverse direction
7110 No. of MPGs used (1 to 3)
(4)Checking manual pulse generator
(a) Incorrect of cable
Check disconnection of cable or short circuit.
(b)Manual pulse generator is faulty
When you rotate the MPG, the following signal is output.
Measure the signal with synchroscope at screw terminal on back of
MPG. If no signal is output, measure +5V voltage.
Back of MPG
+5V 0V HA HB
Screw terminal
HA: A phase signal
HB: B phase signal
Rotation in plus Rotation in minus
+5V
0V
+5V
0V
HA
HB
1/4 phase difference
1 : 1
1:1
on off
1/4 phase difference
on off
on off on off
Check on and off ratio and phase difference of HA and HB.