Installation Guide
22
For the install procedure of the GL980 application software refer to the “Application
Software Manual” included in the attached CD-ROM.
Specification of input/Output section
External sampling input Maximum input frequency: 100 kHz
Temporal error: 1 μs or less.
Description
Item
Input specifications
Input/output types
Trigger input (1 ch) or External sampling input (1 ch)
Logic input (4 ch) or Pulse input (4 ch)
Alarm output (4ch), or Trigger output (1ch) + Alarm output (3ch)
* Trigger input and external sampling input can be switched.
* Alarm output and trigger output can be switched.
Alarm output
specifications
Pulse input Pulse sampling interval: 10 μs to 1h
* Set it separately from sampling interval.
Setting faster than sampling interval is not possible (constant multiple)
Maximum number of pulse inputs
Maximum input frequency : 100 kHz
Maximum number of count : 15 MC (24-bit counter)
Trigger output
Maximum input voltage : 0 to +30V (single-ended ground input)
Input threshold voltage : Approx. +2.5V (logic input, pulse input)
Approx. +1.9V (external trigger, external sampling)
Hysteresis : Approx. 0.5V (+2.5V to +3.0V) (Logic input, pulse input)
Approx. 0.2V (+1.9V to +2.1V) (external trigger, external sampling)
When a trigger is detected after trigger output is set, a pulse of approx.
500 μs width is output from the Output 1 terminal. (Low active)
Revolutions mode (engines, etc.)
Function: Mode to convert to the number of revolutions per minute by applying magnification
after counting the number of pulses for each pulse sampling interval.
Span: 10 to 500M
Counts mode (electric meters, etc.)
Function: Mode to accumulate the number of pulses for each pulse sampling interval from
the start of measurement
Span: Automatic (Maximum 20M)
Inst. mode
Function: Mode to display the number of pulses for each pulse sampling interval.
The accumulated value for each pulse sampling interval is reset.
Span: 10 to 20M
Output format: Open collector output (5 V, pull-up resistance 10 kΩ)
Contact capacity 5V to 24V, 100mA or less (0.2W or less)
Output conditions: Level judgment, window judgment, logic pattern
judgment, pulse judgment
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