PCI1040 Motion Control Card
Chapter 5 Hardware Limit Signals
Hardware limit signals, are used for stopping the pulse output if the limit sensors of + and – direction are
triggered.
5.1 Initial Setting for Filter
The setting values of the input filter decides the sensitivity of +EL , -EL , ALM , +SLD and -SLD .
The setting value range is from 1 to 256. Set 0 for 256. Sensitivity is one cycle of 16 x F x reference clock.
5.2 Over Limit Signal
Over limit +: signal of direction over limit. During the + direction drive pulse outputting, decelerating stop or
sudden stop will be performed once this signal is active. When the filter function is disabled, the active pulse
width must be 2CLK or more.
Over limit -: signal of – direction over limit. During the - direction drive pulse outputting, decelerating stop or
sudden stop will be performed once this signal is active. The active pulse width should be more than 2CLK.
Decelerating stop/sudden stop and logical levels can be set during the mode selection.
5.3 In-position Signal for Servo Motor
Positive logic: from low to high, the external in-position light becomes red and continues to maintain the
original movement, it can decelerate movement or stop immediately.
Negative logic: from high to low, the external in-position light becomes red and continues to maintain the
original movement, it can decelerate movement or stop immediately.
5.4 Alarm Signal
Positive logic: from low to high, the alarm status light becomes red, and it immediately stops movement.
Negative logic: from high to low, the alarm light becomes red, and it immediately stops movement.
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