M-system JPR2 User manual

5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 1 / 8
INSTRUCTION MANUAL
PULSE SCALER
(eld-programmable; built-in excitation) MODEL JPR2
BEFORE USE ....
Thank you for choosing M-System. Before use, please check
contents of the package you received as outlined below.
If you have any problems or questions with the product,
please contact M-System’s Sales Office or representatives.
■PACKAGE INCLUDES:
Signal conditioner (body + base socket).............................(1)
■MODEL NO.
Confirm Model No. marking on the product to be exactly
what you ordered.
■INSTRUCTION MANUAL
This manual describes necessary points of caution when you
use this product, including installation, connection, hard-
ware setting, operation of the Programming Unit (model:
PU-2x)* specific to this model and basic maintenance pro-
cedures.
This unit is factory adjusted and calibrated according to the
Ordering Information included in the product package. If
you don’t need to change the pre-adjusted setting, you can
skip the sections on hardware setting and calibration and
Software Setting in this manual.
*When you need to change software settings, please refer to
the Operation Manual for Model PU-2x (EM-9255), Section B:
(B-1) Introduction, (B-2) General Operation Description, (B-3)
Operation Flow chart for general information.
POINTS OF CAUTION
■POWER INPUT RATING & OPERATIONAL RANGE
• Locate the power input rating marked on the product and
confirm its operational range as indicated below:
85 – 132V AC rating: 85 – 132V, 47 – 66 Hz, approx. 6VA
12, 24 and 48V DC ratings: Rating ±10%, approx. 3.3W
110V DC rating: 85 – 150V DC, approx. 3.3W
■GENERAL PRECAUTIONS
• Before you remove the unit from its base socket or mount
it, turn off the power supply and input signal for safety.
■ENVIRONMENT
• Indoor use.
• When heavy dust or metal particles are present in the
air, install the unit inside proper housing with sufficient
ventilation.
• Do not install the unit where it is subjected to continuous
vibration. Do not subject the unit to physical impact.
• Environmental temperature must be within -5 to +60°C
(23 to 140°F) with relative humidity within 30 to 90% RH
in order to ensure adequate life span and operation.
■WIRING
• Do not install cables close to noise sources (relay drive
cable, high frequency line, etc.).
• Do not bind these cables together with those in which
noises are present. Do not install them in the same duct.
■AND ....
• The unit is designed to function as soon as power is sup-
plied, however, a warm up for 10 minutes is required for
satisfying complete performance described in the data
sheet.
COMPONENT IDENTIFICATION
Body Base Socket
Connection Diagram
Front Cover
Specifications
■HOW TO OPEN THE FRONT COVER:
Hang your finger on the hook at the top of the front cover
and pull.
The shape of base socket may be different
for some models.
INSTALLATION
Detach the yellow clamps located at the top and bottom of
the unit for separate the body from the base socket.
Clamp
(top & bottom)
DIN Rail
35mm wide
Spring Loaded
DIN Rail Adaptor
Shape and size of the base socket
are slightly different with various
socket types.
■DIN RAIL MOUNTING
Set the base socket so that its
DIN rail adaptor is at the bot-
tom. Hang the upper hook at
the rear side of base socket on
the DIN rail and push in the
lower. When removing the
socket, push down the DIN
rail adaptor utilizing a minus
screwdriver and pull.
■WALL MOUNTING
Refer to “EXTERNAL DI-
MENSIONS.”

JPR2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 2 / 8
TERMINAL CONNECTIONS
Connect the unit as in the diagram below or refer to the connection diagram on the top of the unit.
■EXTERNAL DIMENSIONS unit: mm (inch)
3456
2187
80 (3.15)
50 (1.97) 107 (4.21)
127 (5) [3.3 (.13)]
80 (3.15)
20
(.79)
40 (1.57)
50 (1.97)
7.8 (.31)
CLAMP
(top & bottom)
DIN RAIL
35mm wide
2–4.5 (.18) dia.
MTG HOLE
15 (.59) deep
8–M3.5
SCREW
• When mounting, no extra space is needed between units.
■CONNECTION DIAGRAM
3
5
4
+
5kΩ
100Ω
100Ω
■ Open Collector or
Mechanical Contact
Input Connection Examples
+
–
–Vsns
PWR
■ 2-Wire Current Pulse
• Built-in Excitation
3
5
4
–
+
Vsns
2-WIRE
PICK-UP
• External DC Supply
3
5
4
–
Vsns
2-WIRE
PICK-UP +
+
DC SUPPLY
–
■ Voltage Pulse
3
5
4
+
+
–
–Vsns
PWR
■ RS-422 Line Driver Pulse
+
+
–
–
Vsns
PWR
■ Open Collector
Output Connection Examples
+
–
1
2
+
–
■ Voltage Pulse
+
–
1
2
+
–
■ RS-422 Line Driver Pulse
6
+
–
3
5
4+
–
2
+
–
+
–
1
■ OPEN COLLECTOR, MECHANICAL CONTACT,
VOLTAGE PULSE or 2-WIRE CURRENT PULSE INPUT
■ RS-422 LINE DRIVER PULSE INPUT
PU-2x
MODULAR JACK
PU-2x
MODULAR JACK
+
–
INPUT
3
5
4
+
SENSOR EXCITATION
4
+
–
INPUT
+
–
3
5
6
SENSOR EXCITATION
+
–
OUTPUT
1
2
U(+)
V(–)
POWER
7
8
+
–
OUTPUT
1
2
U(+)
V(–)
POWER
7
8
With 24V excitation and open collector/mechanical contact input,
the voltage across the terminals 3 – 4, divided in the waveform shaper,
is of approx. 16V.
2
1
■ Noncontact AC/DC Switch
• AC Powered
LOAD
• DC Powered
Varistor or Spark
Quenching Circuit
Relay or
Counter Coil
U
LOAD
Spark Quenching
Diode
Relay or
Counter Coil
2
1

JPR2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 3 / 8
EXPLANATIONS OF TERMS & FUNCTIONS
■SCALING FACTOR, INPUT PULSE SET COUNT & OUTPUT
PULSE SET COUNT
The scaling factor, rate of number of output pulses divided
by number of input pulses, is determined by two param-
eters: input pulse set count and output pulse set count.
The JPR2 output is designed to be proportional in number
of pulses relative to the input. For example, when the pulse
rate is set to 0.0583, the JPR2, provided with 10000 input
pulses, outputs 583 pulses. However, the output is not sup-
plied in a constant frequency. The JPR2 counts the number
of input pulses during the sampling time (period) and stores
it in the internal buffer counter, and provides the number of
output pulses multiplied by the scaling factor for the num-
ber of input pulses, by the end of next sampling cycle. With
the maximum output frequency limit, those pulses exceed-
ing the limit are still in the buffer and output only in the
following cycle.
■SAMPLING TIME
The sampling time is defined as a time period required by
the JPR2 to count the input signals for one cycle. With its
factory default setting (0.1 sec.), the output is refreshed
every 100 milliseconds.
This setting is not usually be changed unless for a specific
purpose.
■MAXIMUM OUTPUT FREQUENCY LIMIT
You can limit the maximum output frequency from the
JPR2.
The JPR2 multiplies the number of input pulses by the scal-
ing factor. However when the output pulses are supplied to
a low-speed response counter, the number of output pulses
(output frequency of the JPR2) may have to be limited with-
in a certain level.
Those surplus pulses remains in the buffer and are output
in the following sampling cycles within the limit.
■OPERATION
[Example]
Input frequency: 2 Hz
Sampling time: 0.5 sec.
Pulse rate: 3/2
Output pulse width: Duty ratio approx. 50%
Max. output frequency: 1 kHz
1) The JPR2 counts the number of pulses during the sam-
pling time (period). In the example, 1 count in 0.5 sec.
time.
2) Converts the number in the preset rate. In the example,
1 pulse × 3/2 = 1.5 pulses
3) Outputs the converted pulses in the next sampling pe-
riod. If certain pulses are not output within the time due
to a fraction or the max. output frequency limit, they are
output in the following sampling period. In the example,
1 pulse is output in the second period, two pulses are out-
put in the third to adjust the fraction.
■DETECTING PULSE EDGE
• Open Collector & Mechanical Contact:
OFF (input monitor LED ON) to ON (input monitor LED
OFF) or ON to OFF
• Voltage Pulse
A pulse rise detected when the input voltage goes above
the detecting level (input monitor LED ON); a pulse sink
detected when it goes below the level (input monitor LED
OFF).
• Two-wire Current Pulse
The input resistor (100Ω) converts the current signal (0 –
25mA) into 0 – 2.5V. A pulse rise detected when the volt-
age goes above the detecting level (input monitor LED ON);
a pulse sink detected when it goes below the level (input
monitor LED OFF).

JPR2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 4 / 8
OUTPUT LOGIC
H
L
Voltage Pulse
or
RS-422
Line Driver Pulse
OUTPUT WAVEFORM
Open collector
or
Noncontact
AC/DC Switch
The pulse width in one-shot means the bold lined section of a pulse waveform.
No conversion to one-shot
One-shot, detecting input pulse rise
Non
Inverted
Voltage Pulse
2-wire Current Pulse
RS-422 Line Driver Pulse
Open Collector or
Mechanical Contact
INPUT WAVEFORM
H
H
L
H
H
L
L
H
L
OFF
ON
L
L
H
One-shot, detecting input pulse drop
H
L
No conversion to one-shot
One-shot, detecting input pulse rise
Inverted
H
H
L
H
H
L
L
L
L
H
One-shot, detecting input pulse drop
OFF
ON
No conversion to one-shot
One-shot, detecting input pulse rise
Non
Inverted
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
One-shot, detecting input pulse drop
No conversion to one-shot
One-shot, detecting input pulse rise
Inverted
One-shot, detecting input pulse drop

JPR2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 5 / 8
HARDWARE SETTING & CALIBRATION
5
4
3
2
1
0
9
8
7
6
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
ON
SW1
SW3
SW2
Unused
Detecting Level Adj.
Detecting Level Adj. Pin
Pulse Amplitude Selector
Input Type Selectors
Unused
Sensor Excitation Adj.
Modular Jack
Input Monitor LED
■PULSE AMPLITUDE (rotary switch) (*) Factory setting
For RS-422 line driver pulse, this setting is invalid.
For voltage pulse input, select the pulse amplitude (V p-p)
among the switch positions 0 through 6. For open collector,
mechanical contact or two-wire current pulse input, set the
switch to 7. DO NOT SET to 8 or 9. The power supply to the
unit must be turned off when changing the setting.
SW PULSE AMPLITUDE MAX. INPUT VOLTAGE
0
1
2
3
50 – 100V p-p
25 – 50V p-p
10 – 25V p-p
5 – 10V p-p
50V
50V
25V
10V
4
5
6*1
1 – 5V p-p
0.5 – 1V p-p
0.1 – 0.5V p-p
5V
1V
0.5V
7 (*) Open collector, mechanical contact or two-wire cur-
rent pulse
*1. Maximum frequency limited 50 kHz.
■DIP SWITCH SETTING (*) Factory setting
For RS-422 line driver pulse, the noise filter setting is in-
valid.
SW2 is not used. Turn all switches to OFF.
The power supply to the unit must be turned off when
changing the setting.
• Input Type
INPUT TYPE SW1
123456
Open collector (*)
Mechanical contact ON OFF ON OFF OFF ON
Voltage pulse OFF OFF ON OFF OFF OFF
Two-wire current pulse OFF ON ON OFF OFF ON
RS-422 line driver pulse OFF OFF OFF ON ON OFF
• Noise Filter
‘High’ setting is used for the input frequency ≤ 10 Hz.
‘Low’ setting is used for the input frequency ≤ 500 Hz.
For mechanical contact input, ‘High’ setting is recommend-
ed to prevent typical chattering from counting.
NOISE FILTER SW1-7 SW1-8
High
Low (*)
None
ON
OFF
OFF
OFF
ON
OFF
■CAUTION FOR RS-422 LINE DRIVER PULSE
For RS-422 line driver pulse, the input amplitude, detect-
ing level and noise filter settings are all invalid. However,
in order to prevent errors in setting, set these switches as
follows:
Input amplitude = 50 – 100V p-p (SW=0)
Detecting level = 0V
Noise filter = None
■EXAMPLE 1: VOLTAGE PULSE with Amplitude 5V p-p, DC Offset 2.5V, Input Frequency 1 kHz
Input type: Voltage Pulse
Input amplitude: 1 – 5V p-p
Detecting level:
2.5V (DC Offset × Sensitivity Scale = 2.5 × 1/1 = 2.5V)
ON
12345678
ON
12345678
SW3 SW1 SW2
Not Used (All OFF)
5
6
7
8
9
0
1
2
3
4
(Set to the offset value after it is scaled by the sensitiv-
ity scale.)
Noise filter: None
The rotary switch and DIP switch are configured as shown to
the right.
■EXAMPLE 2: VOLTAGE PULSE with Amplitude 30V p-p, DC Offset 15V, Input Frequency 50 Hz
Input type: Voltage Pulse
Input amplitude: 25 – 50V p-p
Detecting level:
1.5V (DC Offset × Sensitivity Scale = 15 × 1/10 = 1.5V) SW3
ON
12345678
ON
12345678
SW1 SW2
5
6
7
8
9
0
1
2
3
4
Not Used (All OFF)
(Set to the offset value after it is scaled by the sensitiv-
ity scale.)
Noise filter: Low
The rotary switch and DIP switch are configured as shown to
the right.

JPR2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 6 / 8
■DETECTING LEVEL
Determine the appropriate detecting level referring to the flow chart below.
START
Confirm the Sensitivity Scale in Table 1
below.
Assign the value in the following equation.
Detecting Level (V)*1=
DC Offset (V)*2× Sensitivity Scale
Adjust the detecting level to the value
calculated above following the procedure
explained below.
Adjust the detecting level
appropriate for the sensor
excitation voltage.
Adjust the detecting level
to 0V appropriate for
RS-422 line driver pulse
input.
Voltage pulse input or
Two-wire current pulse input? No
No
Yes
Open collector input or
Mechanical contact input?
Yes
*1. Divide a two-wire current pulse input (mA)
by 10 and convert it into voltage (V).
*2. Rounded off to one decimal place.
Excitation
≥ 10V DC
7 – 10V DC
5 – 7V DC
Detect. Level
2V
1.5V
1V
Table 1
SW PULSE AMPLITUDE SENSITIVITY SCALE
0
1
2
3
50 – 100 Vp-p
25 – 50 Vp-p
10 – 25 Vp-p
5 – 10 Vp-p
1/20
1/10
1/5
1/2
4
5
6
1 – 5 Vp-p
0.5 – 1 Vp-p
0.1 – 0.5 Vp-p
1
5
10
7 Open collector
Mechanical contact
Two-wire current pulse
1
A specific sensitivity scale is applied according to the pulse
amplitude setting. The scaled input voltage is then com-
pared to the detecting voltage level (0 – 5V).
The scaled H level voltage must be equal to or higher than
the detecting level so that the pulse state is accurately de-
tected (Refer to the instruction manual for detailed infor-
mation about adjusting the detecting level).
• Setting Examples
Voltage pulse (DC Offset = Pulse Amplitude / 2)
PULSE AMPLITUDE
(Vp-p)
AMPLITUDE
RANGE (Vp-p)
DETECTING
LEVEL (V)
50
50
30
50 – 100
25 – 50
25 – 50
1.3
2.5
1.5
25
15
10
10 – 25
10 – 25
5 – 10
2.5
1.5
2.5
7.5
5
3.5
5 – 10
1 – 5
1 – 5
1.9
2.5
1.8
2
1
0.5
1 – 5
0.5 – 1
0.1 – 0.5
1
2.5
2.5
Two-wire current pulse (DC Offset = Pulse Amplitude / 2)
PULSE AMPLITUDE
(mAp-p)
AMPLITUDE
RANGE
DETECTING
LEVEL (V)
15 (1.5 Vp-p)
25 (2.5 Vp-p)
Set to open collector,
mechanical contact or
two-wire current pulse
0.8
1.3
Set DC offset to 0V for 100 Vp-p pulse input.

JPR2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 7 / 8
• How to Change the Detecting Level
5
4
3
2
1
0
9
8
7
6
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
SW1
SW3
SW2
Detecting Level Adj.
Detecting Level Adj. Pin
Input Monitor LED
V
–
Connect to Terminal 4
of the base socket.
Voltmeter
A voltmeter of class 0.5 or better accuracy with pointed
probes is required.
1) Connect the negative probe of voltmeter to the terminal 4
of base socket.
2) If you need a noise filter, set the SW1-7 and SW1-8 in
advance.
3) Connect the positive probe to the test pin and turn the
Detecting Level Adjustment until the meter shows de-
sired value.
4) Apply input signals and check that input monitor LED
(PL1) blinks according to the input signal.
If the LED does not blink, the detecting level may be out
of pulse amplitude range. Check the pulse amplitude
and the DC offset again and readjust the detecting level.
■SENSOR EXCITATION ADJUSTMENT
You can change the sensor excitation voltage with the sen-
sor excitation adj. located behind the front cover. If you
need to change it, check that the required current is within
the specification.
• How to Change the Excitation
A voltmeter and ammeter of class 0.5 or better accuracy are
required.
PU-2x
MODULAR JACK
–
5
4
+
+
–
OUTPUT
1
2
U(+)
V(–)
POWER
7
8
SENSOR EXC. V
A
Ammeter
Voltmeter
1) Connect the voltmeter across the terminals 5 – 4.
2) Connect the ammeter to terminal 5.
3) Turn the potentiometer until the meter shows the de-
sired value.
Check that the current value indicated on the ammeter
is within the allowable limit. If the value is greater than
the limit, lower the voltage value or connect a separate
power source. Otherwise, the transmitter may fail.
25
5
12
24
60 120
CURRENT (mA)
VOLTAGE (V)
Voltage (V) × Current (A) ≤ 600mW

JPR2
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: [phone] Fax: [phone] E-mail: [e-mail]
EM-1580 Rev.6 P. 8 / 8
SOFTWARE SETTING
Please refer to the Operation Manual for Model PU-2x (EM-9255), Section B: (B-1) Introduction, (B-2) General Operation
Description, (B-3) Operation Flowchart for general information.
[GROUP 01]
ITEM MDFY. DATA INPUT DISPLAY DEFAULT CONTENTS
01 S N/A MAINTENANCE SWITCH
0 MTSW : MON.MODE 0 : Data indication only.
1 MTSW : PRG.MODE 1 : All ‘P’ marked parameters are modifiable.
02 P
Alphabets & No TG : XXXXXXXXXX N/A Tag name entry (10 characters max.)
03 P Numeric CNT : XXXXXX 0 Total input pulses (any count selectable)
04 P Numeric IN : XXXXXX 1 Input pulse set count (1 to 1 000 000)
05 P Numeric OUT : XXXXXX 1 Output pulse set count (1 to 1 000 000)
06 P Numeric (Hz) FRQ : XXXX.XHz 10.0 Max. output frequency limit (0.5 to 100000.0 Hz)
07 P Numeric (s) SMP : X.XXs 0.10 Sampling time (0.01 to 100.00 s)
08 D No input N/A Input specification selected with the front rotary switch
SW : IN_V 1/20 SW = 0, Voltage pulse input, Sensitivity scale = 1/20
SW : IN_V 1/10 SW = 1, Voltage pulse input, Sensitivity scale = 1/10
SW : IN_V 1/5 SW = 2, Voltage pulse input, Sensitivity scale = 1/5
SW : IN_V 1/2 SW = 3, Voltage pulse input, Sensitivity scale = 1/2
SW : IN_V 1/1 SW = 4, Voltage pulse input, Sensitivity scale = 1/1
SW : IN_V 5/1 SW = 5, Voltage pulse input, Sensitivity scale = 5/1
SW : IN_V 10/1 SW = 6, Voltage pulse input, Sensitivity scale = 10/1
SW : IN_OC, mA SW = 7, Open collector, mechanical contact or two-wire cur-
rent pulse input
SW : no use SW = 8, (not used)
SW : no use SW = 9, (not used)
SW : IN_RS422 DIP switch set to RS-422 line driver pulse
09 P * Count mode
*Factory default depends upon other specifications.
0 IN_EDGE : 0 Count at pulse rise
1 IN_EDGE : 1 Count at pulse sink
Modication Code
D: No modification (writing) possible. Used only for monitoring (reading).
S: Modifiable at any time.
P: Modifiable only when the MAINTENANCE SWITCH is in the “PRG” mode.
ROM Version Indication
[GROUP 00] [ITEM 99]
CHECKING
1) Terminal wiring: Check that all cables are correctly con-
nected according to the connection diagram.
2) Power input voltage: Check voltage across the terminal
7 – 8 with a multimeter.
3) Check the input signal.
4) Check the output signal.
LIGHTNING SURGE PROTECTION
M-System offers a series of lightning surge protector for
protection against induced lightning surges. Please contact
M-System to choose appropriate models.