NOVA electronics Inc.
MCX514 -
7
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7
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Output of Split Pulse
This is a function in each axis that outputs split pulses during the driving, which synchronizes axis driving
and performs various
operations. The split length, pulse width of a split pulse and split pulse number can be set. By using with synchronous action, the
output of split pulses can be started/terminated at a specified position and the split length or pulse width of a split pulse can be
changed by an external signal. Split pulses can be output corresponding to an arbitrary axis during interpolation driving.
Drive Pulse
Split Pulse
Pulse Width
Split Length
Split Pulse Number
1
2
3
Fig. 1.1-12 Split Pulse Output
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Automatic Home Search Function
This IC is equipped with the function that automatically executes a home search sequence without CPU intervention. The
sequence comprises high-
speed home search → low-speed home search → encoder Z-phase search → offset drive.
Deviation counter clear pulses can be output for a servo motor driver. In addition, the timer between steps which sets stop time
among each step is available, and the operation for a home search of a rotation axis is provided.
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Servo Motor Feedback Signals
MCX514 has input pins for servo feedback signals such as encoder 2-phase, in-positioning and alarm signals. An output signal for
clearing a deviation counter is also available.
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Interrupt Signals
MCX514 has 2 interrupt signals (INT0N, INT1N).
INT0N signal is used to generate an interrupt by various factors. For example, (1). at the start / finish of a constant speed drive
during the acceleration/deceleration driving, (2). at the end of driving, and (3). when the comparison result of a multi-purpose
register with a position counter changes.
INT1N signal is used to request to transfer next segment data to CPU while continuous interpolation driving is performed.
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Driving by External Signals
Driving can be controlled by external signals, which are the relative position driving, continuous pulse driving and manual pulsar
driving. This function is used for JOG feed or teaching mode, reducing the CPU load and making operations smooth.
