User’s
Manual
Model MS5
Potentiometer Converter
(Free Range Type)
IM 77J04S05-01E
Please read through this User’s Manual before use for correct handling.
Please keep this User’s Manual for future reference.
IM 77J04S05-01E
1st Edition Jul. 2005 (YK)
Network Solutions Business Division
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: +81-422-52-7179 Facsimile: +81-422-52-6793
CAUTIONARY NOTES FOR SAFE USE OF THE PRODUCT
This User’s Manual should be carefully read before installing and operating the product. The following symbol is used on the product and in
this manual to ensure safe use.
This symbol is displayed on the product when it is
necessary to refer to the User’s Manual for information on
personnel and instrument safety. This symbol is displayed
in the User’s Manual to indicate precautions for avoiding
danger to the operator, such as an electric shock.
The following symbols are used only in this manual.
IMPORTANT
Indicates that operating the hardware or software in a
particular manner may cause damage or result in a system
failure.
NOTE
Draws attention to essential information for understanding
the operations and/or functions of the product.
MODEL AND SUFFIX CODES
Model
Output
1: 1 output
Power supply
1: 15-40V DC (Operating range: 12 to 48 V)
6: 100-240 V AC/DC (Operating range: 85 to 264 V)
Input signal
1: Potentiometer resistance
(Total resistance 100 Ω to 10 kΩ)
Z: (Custom order)
Customized potentiometer resistance
Output signal
A: 0 to 20 mA DC Span is 5 mA or more
B: 0 to 5 mA DC Span is 1 mA or more
1: −10 to +10 V DC Span is 0.1 V or more
2: −100 to +100 mV DC Span is 10 mV or more
Z: (Custom order)
Customized current signals or voltage signals
Optional specification
/SN: Without socket
MS5 -01 - 00 /
CHECKING PRODUCT SPECIFICATIONS AND PACKAGED ITEMS
(1) Checking the Model and Product Specifications
Check that the model and specifications indicated on the nameplate
attached to the main unit are as ordered.
(2) Packaged Items
Check that the package contains the following items:
● MS5: 1
● Spacer (for DIN rail mounting): 1
● Range label: 1
● User’s Manual (this manual: IM 77J04S05-01E): 1
GENERAL
The MS5 is a plug-in type potentiometer converter that is used in combination with an instrument to transmit information for displacement of
valve etc. by resistance change of potentiometer. It converts the resistance changes into isolated DC current or DC voltage signals.
1
1. MOUNTING METHOD
00%
C
R
y
t
t
NOTE
Plug/disconnect the main unit into/from the socket
vertically to the socket face. Otherwise the terminals may
bend and it may cause bad contact.
1.1 Wall Mounting
Unfasten the upper and lower stoppers of the converter to disconnect
the main unit from the socket. Next, anchor the socket onto the wall
with two M4 screws. Then, plug the main unit into the socket and secure the main unit with the upper and lower stoppers.
Stopper
Main unit
Socket
Mounting
screws
[Mounting Dimensions]
Socket
2-4.5 or 2-M4
Pitch: 56 or more
5 or more
400.2
(51)
1.2 DIN Rail Mounting
Locate the converter so that the DIN rail fits into the upper part of the
DIN-rail groove at the rear of the socket, and fasten the socket using
the slide lock at the lower part of the socket.
Unit: mm
Note:
• When mounting the units
close together, leave a space
of at least 5 mm between
them.
(85)
• Use the supplied spacer to
keep a space of 5 mm for
DIN rail mounting.
2. INSTALLATION LOCATIONS
● Avoid the following environments for installation locations:
Areas with vibration, corrosive gases, dust, water, oil, solvents, direct sunlight, radiation, a strong electric field, and/or a strong
magnetic field
Installation altitude: 2000 m or less above sea level.
● If there is any risk of a surge being induced into the power line
and/or signal lines due to lightning or other factors, a dedicated
lightning arrester should be used as protection for both this converter and a field-installed device.
● Operating temperature/humidity range: 0 to 50C/5 to 90%RH (no
condensation)
3. EXTERNAL WIRING
WARNING
To avoid the risk of an electric shock, turn off the power
supply and use a tester or similar device to ensure that no
power is supplied to a cable to be connected, before carring
out wiring work.
Wires are connected to the terminals of the converter’s socket. M3.5
screw terminals are provided for the connection of external signals. Attach a crimp-on lug to each wire for connection to the terminals.
● Recommended cables: A nominal cross-sectional area of 0.5 mm
or thicker for signal cables, and that of 1.25 mm2 or thicker for
power cables.
Inpu
1
3
Power Suppl
GND
L+
N−
IMPORTANT
6
7
8
ENTE
0%
Outpu
+
−
4
5
2
Fit into here
DIN rail
Push
DIN rail
Spacer
(Rear of the socket)
Slide lock
1.3 Using Ducts
Wiring ducts should be installed at leaset 30 mm away from the top or
bottom of the main unit.
●
The power line and input/output signal lines should be
installed away from noise-generating sources. Other
wise accuracy cannot be guaranteed.
●
The grounding resistance must be 100 Ω (JIS Class D
grounding). The length and thickness of the grounding
cable should be as short and thick as possible. Directly
connect the lead from the ground terminal (terminal no.
6) of the product to the ground. Do not carry out daisychained inter-ground terminal wiring.
●
Use of the product ignoring the specifications may
cause overheating or damage. Before turning on the
power, ensure the following:
(a) Power supply voltage and input signal value applied
to the product should meet the required
specifications.
(b) The external wiring to the terminals and wiring to
ground are as specifications.
●
Do not operate the product in the presence of
flammable or explosive gases or vapors. To do so is
highly dangerous.
●
The product is sensitive to static electricity; exercise
care in operating it. Before you operate the product,
touch a nearby metal part to discharge static electricity.
NOTE
Be sure to set the input range before using the product (see
Chapters 4 and 5 in this manual).
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IM 77J04S05-01E 1st Edition Jul 29, 2005-00
Power Supply and Isolaion
Power supply rated voltage:
15-40 V DC or 100-240 V AC/DC 50/60 Hz
Power supply input voltage:
15-40 V DC (±20%) or 100-240 V AC/DC (−15, +20%) 50/60
Hz
Power consumption:
24 V DC 1.7 W, 110 V DC 1.6 W
100 V AC 3.5 VA, 200 V AC 4.9 VA
Insulation resistance:
100 MΩ at 500 V DC between input, output, power supply, and
grounding terminals mutually.
Withstand voltage:
2000 V AC for 1 minute between input, output, power supply and
grounding terminals mutually.
4. DESCRIPTION OF FRONT PANEL
The figure below shows the converter of which the front panel cover is
open.
Connector for
communication
Selection
switch
Adjustment
switch
4.1 Operation Indicating Lamp
The operation indicating lamp shows the operation status, abnormalities in a setting, and adjustment operation status by the adjustment
switch on the front panel.
(1) When the lamp is lit:
Power is turned on and the converter is in the normal status provided that the selection switch is set to the position “0.”
(2) When the lamp is blinking rapidly:
The lamp repeats the rapid blinking until the internal processing is
completed during output adjustment and the input range setting
by the adjustment switch.
(3) When the lamp is blinking slowly:
The lamp repeats the slow blinking until the converter regains its
normal status when the following abnormalities occur.
• Abnormalities in a parameter setting
• The selection switch is set to the positions other than “0.”
• Input is outside of the range of −10 to 110%.
4.2 Connector for Communication
Use the connector for communication when setting the parameters using a PC (VJ77 Parameter Setting Tool) or the Handy Terminal.
< How to connect with the setting tool>
JUXTA communication cable with
5-pin connector (F9182EE)
JHT200
Handy T erminal
PC which is installed
with the VJ77.
[Provided with VJ77 and JHT200]
Dedicated adapter (E9789HA)
[Provided with VJ77]
Dedicated cable (E9786WK)
[Provided with VJ77]
*: Use the VJ77 of version R1.04 or later.
Operation indicating lamp:
Turns on at power on.
Modular jack conversion
adapter (E9786WH)
[Provided with VJ77]
4.3 Selection Switch and Adjustment Switch
The following adjustments can be performed using the switches on the
front panel (selection switch and adjustment switch) without the dedicated setting tool (refer to “4.2 Connector for Communication”).
The adjusted value is saved about 1 second after operating the adjustment switch. Also when the rotation direction of the adjustment switch
is changed, the adjusted value becomes effective about 1 second after
the change.
Position of selection switch
0
No function
1
Output zero adjustment
2
Output span adjustment
5
Input low range setting
6
Input high range setting
Rotation direction of adjustment switch
Clockwise
Counterclockwise
Increase of output adjusted value and
setting of input low/high range
Decrease of output adjusted value and
reset of input set value
Item to be adjusted
Adjustment operation
[Adjusted volume by the adjustment switch]
One click changes about 0.005% of output range.
4.3.1
Adjusting Output Using the Switches on the Front
Panel
(1) Output zero adjustment
Apply the 0% input signal. Turn the selection switch to “1.” Then
turn the adjustment switch clockwise to increase the output, or
turn it counterclockwise to decrease the output.
(2) Output span adjustment
Apply the 100% input signal. Turn the selection switch to “2.”
Then turn the adjustment switch clockwise to increase the output,
or turn it counterclockwise to decrease the output.
4.3.2
Setting Inpt Range Using the Switches on the Front
Panel
NOTE
●
Set the burnout action before setting the input range.
Changing the burnout action setting resets the input
range.
●
Turn the adjustment switch counterclockwise to reset
the set value before setting the input range.
(1) Resetting the input range
Turn the selection switch to “5” or “6”, and turn the adjustment
switch counterclockwise. Then the input low range or input high
range are reset.
(2) Setting the input low range
Apply the stable signal equivalent to 0% input from the connected
potentiometer. Turn the selection switch to “5”, and turn the adjustment switch clockwise. Then the input low range is set after
one second automatically.
(3) Setting the input high range
Apply the stable signal equivalent to 100% input from the connected potentiometer. Turn the selection switch to “6”, and turn
the adjustment switch clockwise. Then the input high range is set
after one second automatically.
NOTE
●
Be sure to set the selection switch back to the position
“0” after each adjustment. Otherwise it may cause an
incorrect operation or malfunction because the
positions other than “0” are adjustment modes.
●
When the selection switch is set to the positions other
than “0”, the setting tool can not be used for the setting.
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IM 77J04S05-01E 1st Edition Jul 29, 2005-00
5. SETTING PARAMETERS
Set the parameters using a PC (VJ77 Parameter Setting Tool) or the
Handy Terminal. Refer to “6. List of Parameters” in this manual and the
User’s Manual for VJ77 PC-based Parameters Setting Tool (IM
77J01J77-01E) or the User’s Manual for JHT200 Handy Terminal (IM
JF81-02E). Parameters are indicated inside the [ ].
5.1 Setting Burnout Action
Set the burnout action in [D43:BURN OUT].
Set “OFF”, “UP”, or “DOWN”.
NOTE
●
Set the burnout action before setting the input range.
Changing the burnout action setting resets the input
range.
●
Turn the adjustment switch counterclockwise to reset
the set value before setting the input range.
5.2 Setting Input Range
Set the input low range in [P16:IN1 LOW RNG], and input high range in
[P17:IN1 HIGH RNG].
(1) Resetting the input range
Select and set “RESET” in [P16:IN1 LOW RNG] or [P17:IN1 HIGH
RNG]. Then the input low range or input high range are reset.
(2) Setting the input low range
Apply the stable signal equivalent to 0% input from the connected
potentiometer. Select and set “EXECUTE” in [P16:IN1 LOW
RNG]. Then the input low range is set automatically.
(3) Setting the input high range
Apply the stable signal equivalent to 100% input from the connected potentiometer. Select and set “EXECUTE” in [P17:IN1
HIGH RNG]. Then the input high range is set automatically.
5.3 Setting Output Range
Set the output range 0% in [D38:OUT1L_RNG], and the output range
100% in [D39:OUT1H_RNG].
NOTE
Changing the output range resets the adjusted value.
6 LIST OF PARAMETERS
Parameter Display Item
MODEL
TAG NO
SELF CHK
A
DISPLAY1
A07
OUTPUT1
A54
STATUS
A56
REV NO
A58
MENU REV
A60
SELF CHK
B
DISPLAY2
B07
OUTPUT1
B60
SELF CHK
D
SET (I/O)
D01
TAG NO.1
D02
TAG NO.2
D03
COMMENT1
D04
COMMENT2
D38
OUT1 L_RNG
D39
OUT1 H_RNG
D43
BURN OUT
D49
OUT1 DR
D60
SELF CHK
P
ADJUST
P16
IN1 LOW RNG
P17
IN1 HIGH RNG
P26
OUT1ZERO ADJ
P27
OUT1SPAN ADJ
P60
SELF CHK
Q
TEST
Q03
OUT1 TEST
Q60
SELF CHK
*1 The displayed status is to let the service staff know the past records of the
product.
Model
Tag number
Self-check result
Display1
Output-1
1
Status *
REV No.
MENU REV
Self-check result
Display2
Output-1
Self-check result
Setting (I/O)
Tag number-1
Tag number-2
Comment-1
Comment-2
Output-1 low range
Output-1 high range
Burnout
Direction of output-1 action
Self-check result
Adjustment
Setting of input-1 low range
Setting of input-1 high range
Output-1 zero adjustment
Output-1 span adjustment
Self-check result
Test
Forced output-1
Self-check result
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IM 77J04S05-01E 1st Edition Jul 29, 2005-00
7. MAINTENANCE
3
5
y
t
The product starts running immediately when the power is turned on;
however, it needs 10 to 15 minutes of warm-up before it meets the
specified performance.
7.1 Calibration Apparatus
●
Two 6-dial variable resistor (Yokogawa M&C 279301 or the equivalent)
● A digital mutimeter (Yokogawa 7561 or the equivalent)
● A precision resistor of 250 Ω ±0.01%, 1 W
● A setting tool for adjustment
(Refer to “4.2 Connector for Communication” in this mnual.)
7.2 Calibration Procedure
(1) Connect the instruments as shown below.
(2) Operate the variable resistor corresponding to the specifications
of the potentiometer to be combined (overall resistance, resistance of 0% and 100%). Change the values of R1 and R2 maintaining the overall resistance constantly, and apply the input signal equivalent to 0, 25, 50, 75 and 100% of the input span to the
converter.
(3) Check to see the corresponding output voltages are 0, 25, 50, 75,
and 100% respectively and within the specified accuracy rating.
“R” is used for current output.
● Use the setting tool (VJ77 Parameter Setting Tool or JHT200
Handy Terminal) or the switches on the front panel (selection
switch and adjustment switch) to adjust the input/output signals.
Input Adjustment Procedure
Refer to “4.3.2 Setting Input Range Using the Switches on the
Front Panel” and “5.2 Setting Input Range” for the input adjustment.
NOTE
It is recommended that you use the potentiometer actually
used for inputs in the field when the input adjustment is
performed.
Because some differences occur compared with the test
inputs using the 6-dial variable resistor owing to the
influence of the tolerance of potentiometer resistance and
wiring resistance.
The accuracy may not be maintained if you use the
potentiometer actually used for inputs after performing the
input adjustment by test inputs.
Output Adjustment Procedure
(1) When adjusting 0% value of output, call the adjustment item (P:
ADJUST) to select P26: OUT1ZERO ADJ.
(2) If it slips out to (+) side, set (−) value equivalent to slipout; if slips
out to (−) side, set (+) value equivalent to slipout.
*: The 100% value of output can be adjusted by the same operation
as the above.
For adjustment using a setting tool, refer to the User’s Manual for
each setting tool and “6. List of Parameters” in this manual.
For adjustment using the switches on the front panel, refer to “4.3
Selection Switch and Adjustment Switch.”
User’s Manual for VJ77 [Document No.: IM 77J01J77-01E]; however, use the VJ77 of version R1.04 or later.
User’s Manual for JHT200 [Document No.: IM JF81-02E]
Input
Power suppl
GND
6
L+
7
N−
8
6-dial variable
resistor
6-dial variable
resistor
100%
R1
R2
0%
Outpu
1
+
Digital
R
multimeter
2
−
R: 250 Ω precision resistor
for current output
5
IM 77J04S05-01E 1st Edition Jul 29, 2005-00
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IM 77J04S05-01E 1st Edition Jul 29, 2005-00
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