ORDERING INFORMATION Model : JFR2
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FACTORY USE ONLYNameSales➠

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➠Company➠

Job No.

➠➠➠➠➠ModelApproved by(Sales office)Issued by(Sales office)

P/O No.
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PARAMETERINPUT TYPEPULSE AMPLITUDE(voltage pulse & twowire current pulse only)

SET VALUE

STANDARDCOMMENTS

Open collector Choose from the list to the left.
❑ Open collector❑ Mechanical contact❑ Voltage pulse❑ Two-wire current pulse❑ RS-422 line driver pulse
MUST BESPECIFIED
V p-p (mA p-p)

DC OFFSET(voltage pulse & twowire current pulse only)

MUST BE
SPECIFIED

They are required to accurately understand the input waveform. The detecting
level is usually equal to the DC offset for the voltage pulse and two-wire currentpulse. The maximum voltage applicable across the input terminals is 50V.
The detecting level is fixed at 1V or 2V for open collector/mechanical contact.

V (mA)

INPUT SPANFREQUENCY fis❑ kHz❑ Hz❑ mHz

1000 HzSpecify the frequency for 100% input.
2 mHz – 100 kHz(2 mHz – 10 Hz for Mechanical contact)

OUTPUT SPANFREQUENCY fos❑ kHz
❑ Hz
❑ mHz

1000 HzSpecify the frequency for 100% output.
0.2 mHz – 10 kHz(0.2 mHz – 20 Hz for Noncontact AC/DC switch)

Low

Choose an appropriate type of noise filter matching the input frequency range.
The described accuracy may not be assured if the filter is not used.

NOISE FILTER(Not selectable for RS422 line driver pulse)❑ High❑ Low❑ No filter

INPUT FREQUENCYRANGE
0 to 100 kHz
0 to 10 kHz
0 to 1 kHz
0 to 100 Hz
0 to 10 Hz0 to 1 Hz
0 to 100 mHz
0 to 10 mHz
LOW-END CUTOUT❑ kHz❑ Hz❑ mHzFrequency
equals 0.3% ofInput frequencyrange

NOISE FILTER TYPE
None
NoneLow
LowLow
HighHighHigh

Specify within 0.3% to 100% of the input frequency range.
No pulse output is provided while in the low-end cutout range. Deadband inrelation to the input frequency range is fixed at 1%. Minimum increment of thelow-end cutout setting depends upon the Input frequency range as indicatedin the table below.
INPUT FREQUENCYRANGE
0 to 100 kHz
0 to 10 kHz
0 to 1 kHz
0 to 100 Hz
0 to 10 Hz
0 to 1 Hz
0 to 100 mHz
0 to 10 mHz

MG CO., LTD.
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INPUT SPANFREQUENCY
20 to 100 kHz
2 to 19.999 kHz
0.2 to 1.9999 kHz
20 to 199.99 Hz
2 to 19.999 Hz
0.2 to 1.9999 Hz
20 to 199.99 mHz
2 to 19.999 mHz

INPUT SPANFREQUENCY
20 to 100 kHz
2 to 19.999 kHz
0.2 to 1.9999 kHz
20 to 199.99 Hz
2 to 19.999 Hz
0.2 to 1.9999 Hz
20 to 199.99 mHz
2 to 19.999 mHz

MINIMUM
INCREMENTS
10 Hz
1 Hz
0.1 Hz0.01 Hz1 mHz
0.1 mHz0.01 mHz
0.001 mHz

JFR2 ORDERING INFORMATION ESU-1581 Rev.5

P. 1 / 2PARAMETERSET VALUEAVERAGING NONUNIFORMWAVEFORM

ONE-SHOT PULSEWIDTH (option)

STANDARDCOMMENTS

1Input pulses are divided and multiplied to average non-uniform input waveforms
and provided with uniform output.
INPUT ZERO/SPAN FREQUENCY
0 to 100 Hz or less0 to 1 kHz
0 to 10 kHz
0 to 100 kHz

One-shot pulse width
❑ ms
❑ μs

400 μsec.
(20 msec. for
Noncontact
AC/DC switch)

SELECTABLE RANGE
1 to 255
1 to 25
1 to 21 (no averaging)Specify within 30 μsec. to 300 msec.
(within 20 to 300 msec. for Noncontact AC/DC switch)1 One - shot pulse width [sec.]
Output span frequency [Hz] x 1.15
Note: The one-shot pulse width must be specified with this sheet, because that theconfigurator software cannot specify it.
Caution: The pulse width is fixed. Therefore it must comply with the above
formula. Failure to comply may result in no output pulse.

ONE-SHOT OUTPUTLOGIC (option)❑ H or OFF❑ L or ON

H or OFF

Choose the one-shot pulse logic to count.

■ INPUT AMPLITUDE, DC OFFSET and MAX. VOLTAGE ACROSS THE INPUT TERMINALS FOR VOLTAGE PULSE INPUTThe JFR2 will not be able to detect input pulses if the input amplitude and the maximum voltage across the input terminals do not match the values in thefollowing table:
PULSE AMPLITUDE
50 – 100 V p-p
25 – 50 V p-p
10 – 25 V p-p
5 – 10 V p-p
1 – 5 V p-p
0.5 – 1 V p-p
0.1 – 0.5 V p-p

MAX. INPUT VOLTAGE
50 V50 V
25 V
10 V
5V1V
0.5 V

EXAMPLE 1.
With the input amplitude 2 Vp-p, the maximum voltage across the input terminals is of 5V according to the above table. Offset is allowed up to 4V.
Voltage

Max.
5V

1V
1VAmplitude
2 Vp-pDC Offset
4V

TimeEXAMPLE 2.
With the input amplitude 4 Vp-p, the maximum voltage across the input terminals is of 5V according to the above table. Offset is allowed up to 3V.

Voltage
Amplitude 4 Vp-p
2VMax.
5V

2V
DC Offset 3V

MG CO., LTD.
www.mgco.jp

TimeJFR2 ORDERING INFORMATION ESU-1581 Rev.5P. 2 / 2