PPM Installation Instructions
DEIF A/S Page 61 of 69
Mechanical speed governor (standard)
The illustration below shows the necessary connections to carry out speed control using relay
outputs.
In order to extend the lifetime of the internal relays and prevent unwanted switching noise, it is
recommended to use free wheel diodes (1N4007), if a DC voltage is used for the regulation. If
an AC voltage is used for the regulation, it is recommended to use a varistor. This applies to
both pilot motors and external regulation relays.
AVR with relay outputs
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