Instruction manual

Cascade Controller Option

■ Master drive in master/slave control wiring diagram

The wiring diagram below shows an example of a

Master drive in Master/Slave cascade control. The

system demonstrates a 4-20 mA pressure transmitter,

an external safety interlock and four slave drives. The

slave drive speed reference is provided from terminal

17 as a pulse signal. The relays on the option card are

used for the Start/Stop command to the slave drives.

Power terminal connections Control board terminal connections Option card terminal connections

Master Drive

NOTE

Terminal 16 or 17 must be connected to

terminal 12 or 13 and must be programmed

to "System start".

MG.60.I5.22 - VLT is a registered Danfoss trademark