12.3 Unit Specification
226
Pulse Input
Measurement Ranges/ Resolution
“n” is the number of pulses per rotation, from 1 to 1,000
Digital Input
12.3.3 Model 8996 Digital/Pulse Unit
Number of Input
Channels
15 channels
Input Terminals M3 screw-type terminal block (two terminals per channel)
Input Types Digital or pulse input (selectable for each channel)
Input Compatibility No-voltage contact (always-open connection) connection, open collector or voltage input
Input Resistance 1.1 M Ω ± 5%
Maximum Input
Voltage
50 VDC
Maximum Rated
Voltage to Earth
600 Vrms or 600 VDC
(between each input of channels 1 to 5 and main unit, between each input of channels 6 to 10
and main unit, between each input of channels 11 to 15 and main unit, and between each unit)
Measurement category II (anticipated transient overvoltage 4000 V)
Maximum Rated
Voltage between
Channels
33 Vrms or 70 VDC
(between each input of channels 1 to 5 and 6 to 10, between each input of channels 6 to 10
and 11 to 15, between each input of channels 1 to 5 and 11 to 15), (Channel blocks 1 to 5, 6
to 10 and 11 to 15 each share common grounds)
Dielectric Strength 4.29 kVAC for 1 minute
(between each input of channels 1 to 5 and main unit, between each input of channels 6 to 10
and main unit, between each input of channels 11 to 15 and main unit, and between each unit)
350 VAC for 1 minute
(between each input of channels 1 to 5 and 6 to 10, between each input of channels 6 to 10
and 11 to 15, between each input of channels 1 to 5 and 11 to 15)
Detection Level
Types
2 types (selectable for each channel)
Detection Levels HIGH 1.0 V or higher LOW 0 to 0.5 V
HIGH 4.0 V or higher LOW 0 to 1.5 V
Location for Use Altitude up to 2000 m (6562 feet), indoors
Pollution degree 2
Operating Tempera-
ture and Humidity
Temperature : 0 to 40°C (32°F to 104°F)
Humidity : 30 to 80%RH (no condensation)
Storage Temperature
and Humidity
Temperature : -10 to 50°C (14°F to 122°F),
Humidity : 80%RH or less (no condensation)
Dimensions Approx. 38.5W × 133H × 141.2D mm (1.52”W × 5.24”H × 5.56”D) (excluding projections)
Mass Approx. 500 g (17.6 oz.)
Accessories Instruction Manual, Connection Plate
Applying Standards Safety EN61010
EMC EN61326 Class A
Product warranty
period
3 years
Measurement Parameters Pulse Totalization (add, instant) ,Rotation Rate
Pulse Input Period With filter Off: At least 200 µs ( high and low periods must be at least 100 µs)
With filter On: At least 100 ms ( high and low periods must be at least 50 ms)
Chattering Prevention Filter Set On/Off for each channel
Slope Rising- and falling-edge settings available for each channel
Functions Totalization, Rotation Rate
Measurement Objects Range Measurable Range Maximum Resolution
Pulse Totalization 1,000 M pulse f.s. 0 to 1,000 M pulse 1 pulse
Rotation Rate 5,000/n r/s f.s. 0 to 5,000/n r/s 1/n r/s
Recording Interval 10 ms, 20 ms, 50 ms, 100 ms, 200 ms, 500 ms,
1 s, 2 s, 5 s, 10 s, 20 s, 30 s,
1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 1 h
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