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MoTeC Appendices 47

Speed Inputs

Hall mode

A 2200 ohm pull-up resistor connected to 2.7 V.

Suitable for: Switch to 0 V

Logic signal

Open collector device (e.g. Hall Switch)

Pull-up Resistor 2200 ohms to 2.7 V

Voltage Range 0 to 15V

Trigger Threshold Selectable between -1.33 V and 4.68 V

Magnetic mode

The pull-up resistor is disengaged and the

trigger levels can be varied depending on the

input frequency.

Suitable for: Two wire magnetic sensor (variable reluctance

sensor)

Input Resistance 100k ohms to ground (no pull-up)

Voltage Range -80 V to +80 V

Programmable trigger

levels

-1.33 V to 4.68 V

For both modes

Update Rate: 100 times / second

Filter Time Constant 25 usec

Hysteresis 0.17 V min

Measurement Methods:

Frequency

Resolution 0.1 Hz

Maximum Frequency 3200 Hz

Falling Edge Triggered

Period 1 usec

Measures period between falling edges

Resolution 1 usec

Maximum 32 msec

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Motec C185 Bedienungsanleitung Seite 52