Instruction manual

5. Adding and Replacing Optional Modules
163
Step 3
Close the levers of the control and switching unit. (The unit is inserted completely.)
Figure 5-26 Installing a control and switching 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 control and switching unit.
Figure 5-27 Installing a control and switching unit (4)
(1) Screws