CR0708 CR0709
17
6.10 Digital / PWM outputs
controller
VBB
30
nn
VBB
15
nn
VBB
0
nn
VBB
1
nn
VBB
2
nn
Shield
output
nn
output
nn
output
nn
GND
SYS
nn
GND
1...2
GND
SYS
GND
RES
GND
ANA
GND
O
VA
GND
1...2
nn
load
load
load
GND
OVA
nn
nn
nn
nn
nn
nn
1
supply
Fig. 9: Connection of the high-side digital outputs (PWMH, BH), example CR0709
1:
GND star point
WARNING
• common interruption of all GND power supply connections
and simultaneously
• loads connected to GND which are connected to outputs
This may cause fault currents to flow through the controller and load which lead to an
undefined state of the controller and the system.
w
Loss of correct function
u
Always connect the ground lead of the controller and the loads (actuators) via the
common GND star point
①
(see image above).
w
This ensures that in case the line to the battery is interrupted, the loads are no longer
connected to GND, either.
The controller can be connected to the following loads:
•
resistive loads
•
capacitive loads (adapt diagnostic settings to the load, see programming manual)
•
inductive loads
The connected load must not exceed the maximum permissible values of the respective output (
Ò
Technical data).
Deviating connections are not permitted.
