Burkert Type 8643 - Manual (Page 25)

8643 - 25
english
TermInals HousIng
Connection for potential compensation (PA).
electromagnetic compatibility
Connect the ground terminal to the potential equalization (PA) with a as
short a lead as possible to ensure adequate dissipation of EMC interference.
If this is not possible, take appropriate measures to prevent electromagnetic
interference from inadmissibly influencing the Power I/O Box Type 8643.
Connection cable:
minimum of cross-section: 2.5 mm² •
maximum length: 0.5 m •
noTe!
To warranty the tightness of the housing, the outer diameter of the con-
necting lead must be at least 4 mm for plastic housings.
6.4.6 Terminals Actuators
The Power I/O Box Type 8643 has performance-reduced outputs. This
means that the current required to switch the actuator is provided at the mo-
ment of switching. After a pre-determined time, it is reduced to the holding
current.
The actuator outputs are designed with ignition protection type ia.
Terminal marking
Polarity + -
Output 1 1 2
Output 2 7 8
Output 3 13 14
Output 4 19 20