CM2904 Instruction Book © 2009 - 2022 Parker-Hannifin Corporation Page 40 of 51
Application Examples
Controlling actuators with outputs
9.2. Controlling actuators with outputs
I
NFORMATION
You will need to write software to your main ECU/ Module that will be
communicating with CM2904. CM2904 gets the commands for performing the
operations from the master module via CAN -bus. CM2904 also sends the
measurement data through CAN –bus to master unit.
N
OTICE
If large inductive loads are used, and the high side output is providing a continuous
PWM signal, then the PWM peak current must not be greater than the specified
current for the output (in continuous mode, the average current flow through the
diode at 50% duty cycle is approximately equal to ½ the peak current).
When connecting high side outputs, ensure you follow these best practices:
•
High side outputs should not be connected to loads that will draw currents
greater than the maximum peak current, or maximum continuous current.
•
The grounds for the loads should be connected physically close to the
CM2904 power grounds.
The following shows a typical high side output connection:
Figure 10: Typical high side output installation connections
