6-32
IM DL35O-03EN
Frequency Module (720281)
Item
Specifications
Standard operating
conditions
Temperature:
23 ± 5°C
Humidity:
20 to 80% RH
After a 30-minute warm-up
Measurement function
Frequency, RPMs, RPSs, period, duty cycle, power supply frequency, pulse width, pulse integration,
and velocity
Effective measurement
range
20 div (display range: 10 div)
Number of input channels 2
Data update rate
1 MHz (1 µs)
Output delay time
Approx. 3 µs
Input type
Isolated unbalanced
Input connector
BNC connector (isolated type)
Maximum input voltage
Combined with the 700929 (10:1), 702902 (10:1), or 701947 (100:1):
2
420 V (DC + ACpeak)
Combined with the ( 701954) (1:1) or direct input (cable that does not comply with the
safety standards):
4
42 V (DC + ACpeak)
Maximum rated voltage to
ground
Between input and case
Between inputs
Working voltage of safety standard
Combined with the 700929 (10:1), 702902 (10:1), or 701947 (100:1):
3
300 Vrms (CAT II)
Combined with the ( 701954) (1:1) or direct input (cable that does not comply with the
safety standards):
5
42 V (DC + ACpeak) (CAT II, 30 Vrms)
Withstand voltage
2300 Vrms for 2 seconds (across each terminal and earth) (60 Hz)
Insulation resistance
500 VDC, 10 MΩ or more (across each input terminal and earth)
Minimum measurement
resolution
625 ps
Measured data resolution 16 bits (2400 LSB/div)
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 10 div + accuracy dependent on the input frequency)
[Accuracy dependent on the input frequency]
Input frequency of 2 kHz or less:
0.05% of the input fre 0.001 Hz
Input frequency of 2 kHz to 50 kHz:
0.05% of the input frequency
Input frequency of 50 kHz to 100 kHz:
0.1% of the input frequency
Input frequency of 100 kHz to 200 kHz:
0.2% of the input frequency
Input frequency of 200 kHz 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:
(Input set to AC100 V or AC200 V with sine wave input)
±0.3 Hz (0.01 Hz resolution)
• 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 10 div + 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 20 μs to 500 μs:
0.1% of the input 0.1 µs
Input period of 10 μs to 20 μs:
0.2% of the input 0.1 µs
Input period less than 10 μs:
0.5% of the input 0.1 µs
• When in duty cycle measurement mode
8
Dependent on the input frequency
Input frequency of 50 kHz or less:
±0.1%
Input frequency of 50 kHz to 100 kHz:
±0.2%
Input frequency of 100 kHz to 200 kHz:
±0.5%
Input frequency of 200 kHz to 500 kHz:
±1.0%
6.13 Module Specifications