IFM ecomatController CR720S - 6�10 Digital; PWM Outputs

22
6.10 Digital / PWM outputs
supply
output
nn
output
nn
output
nn
controller
VBB
30
nn
VBB
15
nn
VBB
0
nn
VBB
1
nn
VBB
2
nn
VBB
3
nn
VBB
4
nn
VBB
5
nn
GND
SYS
nn
GND
1...4
GND
SYS
GND
RES
GND
ANA
GND
OVA
GND
1...4
nn
load
load
load
GND
OVA
Shield
nn
nn
nn nn nn nn
1
Connection of the high-side digital outputs (PWM
H
, B
H
), example CR721S
1: GND star point
WARNING!
• Interruption of all GND power supply connections
and simultaneously
• loads at the outputs connected to GND
This may cause fault currents to flow through the controller and
load which lead to an undefined state of the controller and the
system�
> Loss of the safety function
► Always connect the ground lead of the controller and the loads
(actuators) via the common GND star point ① (see image
above)�
This ensures that in case the line to the battery is interrupted, the
loads are no longer connected to GND, either�