YOKOGAWA SL1400 - Page 545

18-33
IM 701240-01E
Specifications
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App
Index
Frequency Module (701280) Specifications
Item Specifications
Standard operating Temperature: 23±5°C
conditions Humidity: 20 to 80%RH
After the warm-up time of 30 minutes has elapsed
Measurement function Frequency, RPMs, RPSs, period, duty cycle, power supply frequency, pulse width, pulse integration,
and velocity
Effective measurement Twice the measurement range
range
Number of input channels 2
Data update rate 25 kHz (40 µs)
Output delay Up to 2 computation periods
Input format Isolated unbalanced
Input connector BNC connector (isolated type)
Maximum input voltage Combined with the 700929 (10:1):
2
420 V (DC+ACpeak)
Combined with the (701901+701954) (1:1) or direct input
(cable that does not comply with the safety standards):
4
42 V (DC+ACpeak)
Maximum allowable Working voltage of safety standard
common mode voltage Combined with the 700929 (10:1):
3
300 Vrms (CAT II)
Combined with the (701901+701954) (1:1) or direct input
(cable that does not comply with the safety standards):
5
42 V (DC+ACpeak) (CAT II, 30 Vrms)
Insulation resistance 500 VDC, 10 MΩ or more (across each input terminal and earth)
Minimum measurement 50 ns
resolution
Measured data resolution 16 bits (24000 LSB/range)
Measurement accuracy
1
• When in frequency, RPM, RPS, or velocity measurement mode
6
Measurement accuracy is specified according to the measurement range and input frequency
[Definition of measurement accuracy]
±(0.05% of range + accuracy dependent on the input frequency)
[Accuracy dependent on the input frequency]
Input frequency of 2 or less: 0.05% of the input frequency + 0.001 Hz
Input frequency of 2 to 10 kHz: 0.1% of the input frequency
Input frequency of 10 to 20 kHz: 0.3% of the input frequency
Input frequency of 20 or higher: 0.5% of the input frequency
• When in power supply frequency mode
7
When the center frequency is 50/60 Hz ±0.03 Hz (0.01 Hz resolution)
When the center frequency is 400 Hz: ±0.3 Hz (0.01 Hz resolution)
(Input set to 100 VAC or 200 VAC with sine wave input)
• When in period measurement mode
*6
Measurement accuracy is specified according to the measurement range and input period
[Definition of measurement accuracy]
±(0.05% of range + accuracy dependent on the input period)
[Accuracy dependent on the input period]
Input period of 500 µs or greater: 0.05% of the input period
Input period of 100 to 500 µs: 0.1% of the input period
Input period of 50 to 100 µs: 0.3% of the input period
Input period of 50 µs or less: 0.5% of the input period + 0.1 µs
• When in duty cycle measurement mode
8
Dependent on the input frequency
Input frequency of 1 kHz or less: ±0.1%
Input frequency of 1 to 10 kHz: ±0.2%
Input frequency of 10 to 50 kHz: ±1.0%
Input frequency of 50 to 100 kHz: ±2.0%
Input frequency of 100 to 200 kHz: ±4.0%
• When in pulse width measurement mode
*8
Measurement accuracy is specified according to the measurement range and input pulse width
[Definition of measurement accuracy]
±(0.05% of range + accuracy dependent on the input pulse width)
[Accuracy dependent on the input pulse width]
Input pulse width of 500 µs or greater: 0.05% of the input pulse width
Input pulse width of 100 to 500 µs: 0.1% of the input pulse width
Input pulse width of 50 to 100 µs: 0.3% of the input pulse width
Input pulse width of 50 µs or greater: 0.5% of the input pulse width + 0.1 µs
18.12 Module Specifications