YASKAWA YASNAC i80 - Page 195

( 1 ) Removal
(a) Check that AC input power is not supplied [the
SOURCE indication lamp (green ) of the power unit
is off], then pull out cables connected to CN21,
CN24, CN25, CN26, CN27, CN28, and CN29 of
model JANCD-FC903-1.
(b) Loosen the mounting screws of model JANCD-FC903-I
and remove model
JANCD-FC903-1 from the control
panel.
(c) Pull out the cables connected to CN1l, CN12, CN13,
CNA, CNB, and CNC of model JANCD-FC900B.
(d) Loosen the mounting screws of model JANCD-FC900B
and remove
model JANCD-FC900B from the control
panel.
(2) Installation
See the figure for the exterior of the module.
(a) Check the model and REV number of the replacement
module for consistency.
(b) Check that the ROM number and label contents of
the replacement module are the same as those of the
module to be replaced.
(c) Check that the setting of SW1 is the same as that
before replacement.
a
●
(d) Install model JANCD-FC900B on the control panel.
(e) Connect the cables to CN1l, CN12, CN13, CNA,
CNB, and CNC of model JANCD-FC900B.
(f) Install model JANCD-FC903-1 on the control panel.
(g) Insert all remaining cables to the original positions.
(3) Checking Functions After Replacement
(a) Check that +5V, +12V, and +24V outputs are not
-“
shorted due to overloading.
(b) Apply the first power and second power again and
check that no alarm occurs.
185