Startup Of The Plant - Siemens SIMATIC S5 Manual

IP 267
5.3

Startup of the Plant

Check once more the function of your emergency OFF facility as well as the limit
switches and the emergency limit switches (PD) before you switch the plant on.
The emergency limit switches must always be connected in series. The limit switch
actuators (on machine slides, etc.) must be located on axes within the switching
range ( Figure 5.2.). If this is not the case, you must rotate the axes manually to
within the desired range.
PD I -
Inhibited area
I+, I - Limit switches
PD Emergency limit switches
(pulse disable)
Figure 5-2. Arrangement of Limit Switches and Emergency Limit Switches
After checking all connecting cables, you can switch on the individual power
sources, observing the following order:
• Switch on the programmable controller, no LEDs should light up on the IP 267
until it is configured.
• If you are using special voltage V
• Now switch on the power section.
Connect the programmer to the CPU and load the STEP 5 package into the
programmable controller.
EWA 4NEB 812 6061-02a
RF
Permissible area
, switch V on.
s s
Notes on Operation
I+ PD
Inhibited area
5-5
5