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Connecting loads to proportional PWMOUT outputs
Instruction book, IQAN
Connecting loads to proportional PWMOUT outputs
Connecting a load, e.g. one proportional valve section, to the PWM mode outputs is
done by using the PWMOUT/PWMRET paired positions.
N
OTICE
DO install diodes across coils for PWMOUT mode on all other solenoids!
If maximum load inductance is exceeded, or if PWM outputs are externally grounded, a
clamping diode must be used. Place the diode between the PWMOUT and PWMRET,
or the PWMOUT and ground, as close to the load as possible. This protects the output
against high voltage transients.
For example, use diode: 1N5408 (3A/1000V).
Depending on the load, other clamping diodes might be used instead.
EXAMPLE
Positive direction
:
Connect the proportional valve to the PWMOUT-X, and the PWMRET-X+,
respectively.
Negative direction
:
Connect the proportional valve to the PWMOUT-X, and the PWMRET-X-,
respectively.
Connecting a load to a proportional output.
N
OTICE
DO NOT install diodes across coils for PWMOUT mode for Parker Pulsar
solenoids!
PWMOUT-X
PWMRET-X-
PWMRET-X+
Directional Valve
IQAN module
