Instruction manual

5. Adding and Replacing Optional Modules
139
CAUTION
When you install a basic control unit, open the levers as shown in the
figure. If the levers are closed or opened too much, they might be
damaged when you install the unit.
Step 3
Close the levers of the basic control unit. (The unit is inserted completely.)
Figure 5-26 Installing a basic control unit (3)
(1) Lever
CAUTION
Use the levers so that the connectors on the optional module and the
Switch will be engaged correctly.
When moving the levers, move them slowly (one second or longer)
without exerting any force.
Failure to do this could result in a Switch malfunction or fault.
Step 4
Tighten the screws of the basic control unit.