Operating instructions

Operating Instructions Chapter 6

C4000 Standard/Advanced

Subject to change without notice

Electrical installation

6 Electrical installation

Switch the entire machine/system off line!

The machine/system could inadvertently start up while you are connecting the devices.

 Ensure that the entire machine/system is disconnected during the electrical

nstallation.

Connect OSSD1 and OSSD2 separately!

You are not allowed to connect OSSD1 and OSSD2 together, otherwise signal safety will

not be ensured.

 Ensure that the machine controller processes the two signals separately.

Contactors connected in series must be positively guided and monitored (see section 6.6

“External device monitoring (EDM)” on page 57).

Prevent the formation of a potential difference between the load and the protective

device!

 If you connect loads that are not reverse-polarity protected to the OSSDs or the safety

outputs, you must connect the 0 V connections of these loads and those of the

corresponding protective device individually and directly to the same 0 V terminal strip.

This is the only way to ensure that, in the event of a defect, there can be no potential

difference between the 0 V connections of the loads and those of the corresponding

protective device.



WARNING

OSSD1

OSSD2

OSSD1

OSSD2