18
AdditionalDigital InputandOutputSignals
DataLatch
(input)
Toggling this signal fromhigh to low (hold the signal low for aminimumof 5ms)will
cause theactuator to read theBCD Input signals. Once the signalsare read, theactuator
will thenattempt tomove to theposition indicatedon theBCD Input signals.
BCDSignals
(output)
These represent thecurrentpositiondata in the same formatusedas the Inputprotocol.
Note: TheBCDOutput Signalsareonlyupdatedafter themotorhasfinishedmoving (
see
MotorRun
below
) and if there isnoerror (
see
Error
below
).
Step
(input)
Toggling this line fromhigh to low (hold the signal low for aminimumof 5ms) causes the
actuator toadvanceoneposition.
Home
(input)
Toggling this line fromhigh to low (hold the signal low for aminimumof 5ms)moves the
actuator to theHome (orfirst)position.
ManualDirection
(input)
When the signal ishigh, theactuatorwillmove ina forwarddirection. For example,when
moving fromposition3 toposition4, itwillmove the shortestdistancebetween the
twopositions.When the signal is low theactuatorwillmove ina reversedirection;when
moving fromposition3 toposition4, itwillmove the longestdistancebetween the two
positions.
AutoDirection
(input)
When the signal ishigh, theManualDirection signal dictateshow theactuatormoves
todifferentpositions. When the signal is low, theactuatorwill calculate the shortest
directionbetween twopositionsandmove in thatdirection.
MotorRun
(output)
When the signal ishigh, themotor is inanOff state. When the signal is low, themotor is in
anOn state (moving).
Error
(output)
When the signal is low, theactuator encounteredanerrorwith the lastmove request.
When the signal ishigh,noerrorwasdetected.
Notes:
The systemconsidersamove request for thecurrentposition tobeanerror,since the
motordoesnotmove.
Error signalsareclearedafter thenext successfulmove.
Direction
(output)
–Factory testoutput.
OptionalBCD Interface
