Mitsubishi FREQROL-SF, Troubleshooting Manual

Page: 55 / 219

Item
Cause
In the orientation
operation using an
encoder,
5 V power is
not supplied to the
encoder.
Check
Disconnect the connector CONE
which is connected to the en-
coder and check that
power
is applied between the pin 4
(or pin 5 or 6) and pin 20.
(See Appendixes l-7 and l-8).
Check the position of the
shortcircuit ring of the pin.
In the case that power is
supplied from the spindle
amplifier:
Remedy
When 5 V power is applied,
replace the cable which is
connected from the CONB to
the orientation encoder with
a new one.
When 5 V power is not
applied and when the posi-
tion of the shortcircuit
ring is correct:
Replace the control power
SF-PW module with a new
In the case that power is
. The side A of the PIN 3 is
supplied from the NC:
The side of the PIN 3 is
shortcircuited (on the
shortcircuited (on the
SF-OR card).
SF-OR card).
The portions 2 and 3 of the
PIN 5 are shortcircuited
(on the SF-TL card).
SF-OR card SF-TL card)
one.
with a new one.
(See Section
Alternatively, replace the
SF-OR card (or SF-TL card)
with a new one.
Check the NC power.
Alternativelv. reolace the
The portions 1 and 2 of the
PIN 5 are shortcircuited
(on the SF-TL card).
(See References and
The orientation para-
meter is incorrectly
set.
Check that the parameter
which is set from
the spindle amplifier accords
with the orientation type.
1: Encoder
2: Magnesensor
Correctly set the parameter.