
#7
ALD0201
#6 #5 #4
EXP
#3 #2 #1 #0
DGN
JF
X
JF2
X
↓ ↓
8. TROUBLESHOOTING
B–62835EN/01
314
Position detection signal line is disconnected or short–circuited.
Check the details using the Power Mate’s diagnostic fucntion.
1 – – 0 Built–in serial pulse coder
disconnection
1 – – 1 Separate type position
detector connection
1 – – 0 Pulse coder disconnec-
tion (software)
1Signal cable is disconnected or short–circuitted.
2Serial pulse coder or position detector is faulty.Refer to Note 1
3Base printed board or servo module is faulty. (See Sec.8.13.)
Refer to Caution 2
CAUTION
1After the pulse coder is replaced, reference position or
machine’s standard position is different from former one.
Adjust and set it correctly.
2When the base printed board is replaced, all the data stored
in memory is lost. Set NC data again, referring to chapter
3 ” Data input/output” .
PC
Linear scale
Power Mate
JF2x
NOTE)In the case of the type A interface, the position detection signal line is
connected to the Power Mate, while in the case of the type B interface,
it is connected to the servo amplifier.
Servoamplifier
JFx
JVx
JSxB
JFx
Signal line for position detector
x is an axis number
8.23
ALARM 416
(DISCONNECTION
ALARM)
Point
Causes