Hitachi LQE550, User Manual

Page: 91 / 99

6 MAINTENANCE
6-4
⑬
Turn on the power supply of the controller unit and check that the new CPU LINK module
is running normally.
z Add-on procedure
①
Write down, on a piece of paper, the current settings of two switches, labeled LADDER
(toggle switch) and T/M (rotary switch), respectively, that are accessible at the front side of
the LPU module, the one that is installed in the controller unit in which you are adding on
a CPU LINK module.
②
Ensure that your application system has been shut down. Then, set the LPU module’s
LADDER switch in STOP position and turn off the power supply of the controller unit.
③
Mount the add-on CPU LINK module in place according to the instructions given under
“3.2 Mounting the Module.”
④
Set the add-on CPU LINK module’s rotary switches in such a way that a new setting will
not duplicate with any of the current rotary switch settings of the main CPU LINK module.
⑤
Connect the personal computer and the LPU module together with the RS-232C cable.
Then, turn on the power supply of the controller unit and set parameters for the add-on
CPU LINK module by using the S10V CPU LINK System.
⑥
Reset the LPU module by setting the RESET switch in ON position and then in OFF
position at its front.
⑦
Turn off the power supply of the controller unit and connect the connecting cables to the
add-on CPU LINK module.
⑧
Set the LPU module’s LADDER and T/M switches in the same way as you wrote down in
Step
①
.
⑨
Remove the RS-232C cable from both the personal computer and LPU module, which
were connected together in Step
⑤
.
⑩
Turn on the power supply of the controller unit and check that the add-on CPU LINK
module is running normally.