
Connectors, I/O and Schematics
Precision MicroControl Corp.
194
Drive Disable
signal type
:
Open collector, current sink, 100ma max. current sink, 30V max.
notes
:
External pull-up may be required
explanation
:
This output signal should be connected to the
disable input
of the stepper driver or
servo amplifier. When the axis is disabled (or the controller is reset) the open collector
driver will be turned on, sinking current through the interface device of the stepper driver /
servo amplifier. When the axis is turned on this signal will immediately go to its' inactive
high level. Anytime there is an error on the respective axis, including
exceeding the
following error, a limit switch input activated or the Amplifier / Driver Fault input
activated
, the Driver Disable signal will be activated.
This signal is driven by a high current open collector driver and is suitable for direct connection to optically
isolated inputs commonly found on a amplifier / driver. Because of the characteristics of open collector
drivers, no voltages will be present on these output signals unless signals unless a pull-up path to a
supply voltage is provided.
Amplifier / Driver Enable
signal type
:
Open collector, current sink, 100ma max. current sink, 30V max.
notes
:
External pull-up may be required
explanation
:
This output signal should be connected to the
enable input
of the servo amplifier or
stepper driver. When the axis is enabled the open collector driver will be turned on,
sinking current through the interface device of the servo amplifier / stepper driver. When
the axis is turned off (or the controller is reset) this signal will immediately go to its'
inactive high level. Anytime there is an error on the respective axis, including
exceeding
the following error, a limit switch input activated or the Amplifier / Driver Fault
input activated
, the Amplifier Enable signal will be deactivated.
This signal is driven by a high current open collector driver and is suitable for direct connection to optically
isolated inputs commonly found on a amplifier / driver. Because of the characteristics of open collector
drivers, no voltages will be present on these output signals unless a pull-up path to a supply voltage is
provided.
Position Compare Output
signal type
:
TTL (buffered by 74LS541)
Active level = programmable, default = TTL high
Minimum pulse duration (one Shot mode) = 1 msec. (+/- 0.5 msec.)
Servo Maximum re-trigger frequency = 4 KHz
Stepper Maximum re-trigger frequency = 1 KHz
TTL low level current sink max. = 24 mA
TTL high level current source max. = 15 mA
TTL high level output min. voltage = 2.4V
TTL high level output max. voltage = 5.0V
TTL low level output min. voltage = 0.0V
TTL low level output max. voltage = 0.5V
notes
:
Dual purpose, also can be used for general purpose TTL digital output
explanation
:
Used to indicate when a position compare event has occurred. See the description of
Position Compare
in the
Application Solutions chapter
.
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