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TWO-SPEED APPLICATION
By using single-pole, double throw (SPDT) relay or switch,
preset two-speed operation is possible.
1. Replace external speed pot with SPDT contacts as shown
below.
2. With SPDT contacts closed between terminals SP2 and SP3,
adjust the MIN SPEED trimpot to desired low speed.
3. With SPDT contacts closed between terminals SP1 and SP2,
adjust the MAX SPEED trimpot to desired high speed.
NOTE: SPDT must be capable of reliability switching
5VDC @ 1 mA. (i.e.-gold contacts).
SP1
SPDT
SP2
SP3
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