PRO-150 V1.0 11/18
Page 12
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Voltage following
The Pro-150 can be used as a voltage follower. A 10k resistor must be fitted
between pins D and F so pot fault is not triggered.
The pot wiper must not be open-circuit: if the source impedance is too high this will
be registered as a PO fault (input is internally pulled up with 330K to 5v rail).
Zero voltage and maximum voltage can of course be programmed as required in
the range 0 to 4.7v as can joystick operation in this range.
As supplied, with the default profile, zero speed is for 0v and full speed is about
4.7v. Any voltage above 4.7 will cause a fault PO
Reverse switch
The Reverse switch changes the motor direction depending on whether it is closed
or open. Standard performance is
Switch open
(or absent) the Pro-150 will be in Forward.
Switch closed
, the Pro-150 will reverse.
A switch is actually optional: in joystick mode both speed and direction are
controlled by the speed pot.
Auxiliary connector
The Auxiliary/Programming connector (A), inside the Pro-150, has two functions.
As well as being the programmer connector, it can be used for additional controls
when the programmer is not in use.
Connections are identified in the diagram below [note the colours used here are
optional].
Slow / Fast mode
If pins A and B are connected [or the
– button on the programmer held for 3
seconds] at start-up, the Pro-150 will then start up in profile 9 which can be
configured as required for slower operation.
Once pins A and B are disconnected, the Pro-150 will revert to its previously set
profile on the next power-up.
