Motec PDM30 User Manual download pdf (Page 10)

MoTeC Installation 7

The wiper unit can be wired using an OEM wiper controller with the PDM

supplying the power only.

The OEM controller performs the intermittent and motor braking functions.

2. Two Switch Method

PDM

Off

Fast

Slow

Park

Switch

Home

Output

The wiper unit can be wired in a simple two switch arrangement; one switch

for power and the other to select fast or slow. The PDM supplies power only.

Wiper motor braking is performed by the combination of the park switch and

the on/off switch.

This arrangement cannot perform intermittent operation since the wiper will

not park if the PDM simply removes power.

The switches must be able to handle the wiper motor current (typically

4 ampere).

3. Relay Method

PDM

Off

Fast

Slow

Relay

Park

Switch

Home

Control

Switches

Output

The two switch method can be modified for intermittent operation by replacing

the on/off switch with a relay. The PDM controls the relay to perform the

intermittent function. This requires two PDM outputs; one to supply power and

the other to control the relay.

Motor braking is performed by the combination of the park switch and the

relay switch.

The PDM must be configured with the appropriate logic to perform on/off and

intermittent operation based on the state of the control switches.

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Motec PDM30 User Manual Page 10