User’s
Model
Function
A: Free program
L: Analog memory
M
: Peak holder
N: Bottom holder
P: Program setter (Note 1)
Q
: Integrated pulse output
Input signal
A: 0 to 50 mA DC Span is 1 mA or more
B: 0 to 10 mA DC
Span is 0.1 mA or more
1: −10 to +10 V DC Span is 0.1 V or more
2: −2 to +2 V DC Span is 10 mV or more
N: No analog input (Note 1)
Output signal
A: 0 to 20 mA DC Span is 2 mA or more
B: 0 to 5 mA DC Span is 1 mA or more
1: 0 to 10 V DC Span is 0.1 V or more
2: 0 to 100 mV DC Span is 10 mV or more
3: −10 to +10 V DC Span is 0.2 V or more
4:
−100 to +100 mV DC Span is 20 mV or more
Power supply
1: 15-40 V DC (Operating range: 12 to 48 V DC)
2: 100-240 V AC (Operating range: 85 to 264 V AC)
Optional specification
/R250: With 250 Ω receiving resistor
Note 1: The input signal suffix code “N” is fixed when the program
setter is selected.
However, the analog input is adjusted and inspected by 1 to
5 V DC of the input signal suffix code “1” before shipment.
MXD- N - *B/
Manual
Model MXD
Universal Computing Unit
(1-input, Isolated 1-output Type)
<with Contact I/O>
IM 77J04X12-01E
Please read through this User’s Manual before use for correct handling.
Please keep this User’s Manual for future reference.
IM 77J04X12-01E
1st Edition Aug. 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.
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:
● MXD: 1
● Range label: 1
● Spacer: 1
● Receiving resistor (for current input): 1
● User’s Manual (this manual: IM 77J04X12-01E): 1
* When the optional specification “/R250” is specified, the 250 Ω
receiving resistor is attached. When the optional specification
“/R250” is not specified, the 100 Ω receiving resistor is attached.
GENERAL
This plug-in type universal computing unit receives DC current or DC
voltage signals, applies various computing functions to them, and then
converts them into isolated DC current or DC voltage signals.
MODEL AND SUFFIX CODES
1. MOUNTING METHOD
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 computing unit 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
Mounting
screws
<Mounting Dimensions>
Socket
2-4.5 or 2-M4
Pitch: 56 or more
5 or more
400.2
(51)
Note:
• When mounting the
computing 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.
1.2 DIN Rail Mounting
Locate the computing unit 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.
DIN rail
Spacer
Push
(Rear of the socket)
Slide lock
1.3 Using Ducts
Wiring ducts should be installed at least 30 mm away from the top or
bottom of the main unit.
Socket
Unit: mm
Fit into here
DIN rail
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 computing unit 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 computing unit’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.
Receiving resistor
(for current input)
Power supply
L+
7
N–
8
GND
Contact output
+
10
–
11
8 7 6 5
9
10 11
4
39
1 2
IMPORTANT
●
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.
9) 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.
Input
+
5
R
6
–
R
: Receiving resistor
for current input
Contact input
–
4
+
3
Output
+
1
–
2
2
2
IM 77J04X12-01E 1st Edition Aug 31,2005-00
Power Supply and Isolation
Power supply rated voltage:
15-40 V DC or 100-240 V AC 50/60 Hz
Power supply input voltage:
15-40 V DC (±20%) or 100-240 V AC (−15, +10%) 50/60 Hz
Power consumption:
24 V DC 2.3 W
100 V AC 4.6 VA, 200 V AC 6.4 VA
Insulation resistance:
100 MΩ or more at 500 V DC between input, analog output, contact output, power supply, and grounding terminals mutually.
(Anaolg input and contact input terminals are not isolated.)
Withstand voltage:
2000 V AC for 1 minute between input, (analog output, contact
output), power supply and grounding terminals mutually.
1000 V AC for 1 minute between anaolg output and contact output
terminals.
4. DESCRIPTION OF FRONT PANEL
The figure below shows the computing unit 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 computing unit 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 by the adjustment switch or
forced contact output.
(3) When the lamp is blinking slowly:
The lamp repeats the slow blinking until the computing unit 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.”
4.2 Connector for Communication
Use the connector for communication when setting the parameters using a PC (VJ77 Parameters 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
[Provided with VJ77 and JHT200]
Operation indicating lamp:
Turns on at power on.
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
No function
0
Output zero adjustment
1
Output span adjustment
2
No function
3
No function
4
No function
5
No function
6
Forced contact output ON/OFF
7
Rotation direction of adjustment switch
Clockwise
Counterclockwise
Increase of output adjusted value
Forced contact output ON
Decrease of output adjusted value
Forced contact output OFF
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
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
Turn the selection switch to “2.” Then turn the adjustment switch
clockwise to increase the output, or turn it counterclockwise to decrease the output.
(3) Forced contact output
Turn the selection switch to “7.” Use the adjustment switch for adjustment.
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.
5. SETTING PARAMETERS
Set the parameters using a PC (VJ77 Parameters Setting Tool) or the
Handy Terminal. Refer to “7. 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 [ ].
■ Setting Input Range
Set the 0% value of input range in [D27: INPUT1 L_RNG] and the 100%
value of input range in [D28: INPUT1 H_RNG].
NOTE
Dedicated cable (E9786WK)
[Provided with VJ77]
PC which is installed
with the VJ77
Modular jack conversion
adapter (E9786WH)
[Provided with VJ77]
Dedicated adapter (E9789HA)
[Provided with VJ77]
*: Use the VJ77 of version R1.04 or later.
Changing the input range resets the input adjusted value.
■ Setting Output Range
Set the 0% value of output range in [D38: OUT1 L_RNG] and the 100%
value of output range in [D39: OUT1 H_RNG].
NOTE
Changing the output range resets the output adjusted
value.
3
IM 77J04X12-01E 1st Edition Aug 31,2005-00
6. COMPUTING FUNCTIONS
6.1 MXD-A Free Program
This computing unit is used to meet individual applications by programming the available commands using a PC (VJ77 Parameters
Setting Tool) or the JHT200 Handy Terminal. Set the computing program in G01 to G59.
6.2 MXD-L Analog Memory
This computing unit carries out the analog output (Y) of the value that
corresponds to the analog input (X) as an ordinary computing unit as
long as the contact input (DI) is ON (SHORT).
When the contact input is OFF (OPEN), the unit holds the analog output at that time (Y) all the time.
6.3 MXD-M Peak Holder
This computing unit carries out the analog output (Y) of the value that
corresponds to the analog input (X) as an ordinary computing unit as
long as the contact input (DI) is ON (SHORT).
When the contact input is OFF (OPEN), the unit outputs the analog
signal (Y) that corresponds to the peak value of subsequent analog input (X).
6.4 MXD-N Bottom Holder
This computing unit carries out the analog output (Y) of the value that
corresponds to the analog input (X) as an ordinary computing unit as
long as the contact input (DI) is ON (SHORT).
When the contact input is OFF (OPEN), the unit outputs the analog
signal (Y) that corresponds to the bottom value of subsequent analog
input (X).
6.5 MXD-P Program Setter
This computing unit resets the program, outputs and holds the starting
value of the time table when the contact input (DI) is ON (SHORT).
When the contact input is OFF (OPEN), the unit starts the program
and outputs the analog signal (Y) according to the time table. When
the program ends, the unit outputs the end value of time table and
holds it until the next reset command (contact input in ON (SHORT)
status) enters.
Up to 21 time tables can be set and give relationship of time vs. output.
Any number (1 to 20) of line segments of time table can be set in H43.
Set a number (1 to 20) of line segments in H43.
Set X axis (time) in H01 to H21: CONST.
X axis breakpoint H01 corresponds to Y axis breakpoint H22 and
shifts orderly thereafter.
Fixed constants (H01 to H43) can be changed using the Handy Terminal.
0 to 100.0% in H01 to H21 corresponds to 0 to 1000 seconds.
0 to 100.0% in H22 to H42 corresponds to 0 to 100.0% of output.
Number of line segments 1 to 20 of time table corresponds to 100 to
2000%.
● Setting condition of time table:
0.0% (H01 to H21) 32000% (0 to 320000 seconds)
−6% (H22 to H42) 106%
H01<H02 ····· <H21
Number of time tables: 2 to 21
● Setting resolution:
Time: 1 second (0.1%)
Output: 0.1%
● Setting accuracy of time table:
(±5.0% of set value) ±1.0 second
● Number of significant digits: 4
X axis: t0 to t20 (e.g. 123456 seconds unacceptable, 123400 seconds acceptable)
Y axis: Y0 to Y20 (e.g. 12.34% unacceptable, 12.3%, acceptable)
6.6 MXD-Q Integrated Pulse Output
This computing unit outputs the integrated pulse according to the following expression.
DO = K1 · X · 10
where DO: Integrated pulse output (pulse/hour)
X: Input signal (%)
K1: Integration factor (no unit)
Pulse output is ON pulse of 100 ms. However, the maximum number
of output pulse is 5 pulses / second. Also, the analog signal is always
output as monitor of input signal (X).
Integration factor (K1) can be set in H01: CONST.
Fixed constant H01 can be changed using the Handy Terminal.
● Setting range of integration factor:
0.01 to 18 (1% to 1800%)
Number of significant digits: 4
Minimum unit: 0.00001
● Computation accuracy:
1000±2 (pulse/hour) (However, when K1 = 1, X = 100%.)
● Specification of contact output:
Maximum permissible load: 30 V DC/200 mA
● Number of significant digits: 4
(e.g. 1.23456 unacceptable; 12.34, 1.234, 0.01234 acceptable)
4
IM 77J04X12-01E 1st Edition Aug 31,2005-00
7. LIST OF PARAMETERS
7.1 MXD (except for the function suffix code “A”)
Parameter Display Item
MODEL
TAG NO
SELF CHK
DISPLAY1
A
INPUT1
A01
OUTPUT1
A05
DI
A15
DO
A16
STATUS
A54
REV NO
A56
MENU REV
A58
SELF CHK
A60
DISPLAY2
B
INPUT1
B01
OUTPUT1
B05
DI
B15
DO
B16
SELF CHK
B60
SET (I/O)
D
TAG NO.1
D01
TAG NO.2
D02
COMMENT1
D03
COMMENT2
D04
INP TYPE
D20
IN RESIST
D22
INPUT1 L_RNG
D27
INPUT1 H_RNG
D28
OUT1 L_RNG
D38
OUT1 H_RNG
D39
PRGM SELECT
D45
SELF CHK
D60
CONST
H
CONST
H01
CONST
H02
•
•
•
H58
H59
H60
P
P08
P09
P26
P27
P60
Q
Q03
Q12
Q60
*1: The displayed status is to let the service staff know the past records
of the product.
*2: The parameters are the items to be set at the factory.
•
•
•
CONST
CONST
SELF CHK
ADJUST
IN1 ZERO ADJ
IN1 SPAN ADJ
OUT1ZERO ADJ
OUT1SPAN ADJ
SELF CHK
TEST
OUT1 TEST
DO1 TEST
SELF CHK
Model
Tag No.
Self-check result
Display 1
Input-1
Output-1
Digital input
Digital output
*1
Status
REV No.
MENU REV
Self-check result
Display 2
Input-1
Output-1
Digital input
Digital output
Self-check result
Setting (I/O)
Tag No.-1
Tag No.-2
Comment-1
Comment-2
Input type
Input resistor
*2
*2
Input-1 low range
Input-1 high range
Output-1 low range
Output-1 high range
Program selection
Self-check result
Fixed Constant of Computing Unit
Fixed constant
Fixed constant
•
•
•
Fixed constant
Fixed constant
Self-check result
Adjustment
Input-1 zero adjustment
Input-1 span adjustment
Output-1 zero adjustment
Output-1 span adjustment
Self-check result
Test
Forced output-1
Forced contact output-1
Self-check result
7.2 MXD (for the function suffix code “A”)
Parameter Display Item
MODEL
TAG NO
SELF CHK
A
DISPLAY1
A01
INPUT1
A05
OUTPUT1
A11
T1
A12
T2
A13
T3
A14
T4
A15
DI
A16
DO
A17
LOAD
A54
STATUS
A56
REV NO
A58
MENU REV
A60
SELF CHK
B
DISPLAY2
B01
INPUT1
B05
OUTPUT1
B11
T1
B12
T2
B13
T3
B14
T4
B15
DI
B16
DO
B17
LOAD
B60
SELF CHK
D
SET (I/O)
D01
TAG NO.1
D02
TAG NO.2
D03
COMMENT1
D04
COMMENT2
D20
INP TYPE
D22
IN RESIST
D27
INPUT1 L_RNG
D28
INPUT1 H_RNG
D38
OUT1 L_RNG
D39
OUT1 H_RNG
D45
PRGM SELECT
D47
CYCLE TIME
D60
SELF CHK
G
PROGRAM
G01
PROGRAM
G02
PROGRAM
G58
G59
G60
H
H01
H02
H58
H59
H60
P
P08
P09
P26
P27
P60
Q
Q03
Q12
Q60
•
•
•
•
•
•
•
•
•
PROGRAM
PROGRAM
SELF CHK
CONST
CONST
CONST
CONST
CONST
SELF CHK
•
•
ADJUST
•
IN1 ZERO ADJ
IN1 SPAN ADJ
OUT1ZERO ADJ
OUT1SPAN ADJ
SELF CHK
TEST
OUT1 TEST
DO1 TEST
SELF CHK
Model
Tag No.
Self-check result
Display 1
Input-1
Output-1
Temporary memory-1
Temporary memory-2
Temporary memory-3
Temporary memory-4
Digital input
Digital output
Load factor
*1
Status
REV No.
MENU REV
Self-check result
Display 2
Input-1
Output-1
Temporary memory-1
Temporary memory-2
Temporary memory-3
Temporary memory-4
Digital input
Digital output
Load factor
Self-check result
Setting (I/O)
Tag No.-1
Tag No.-2
Comment-1
Comment-2
Input type
Input resistor
*2
*2
Input-1 low range
Input-1 high range
Output-1 low range
Output-1 high range
Program selection
Computation cycle
Self-check result
Program of Computing Unit
Program
Program
•
•
•
Program
Program
Self-check result
Fixed Constant of Computing Unit
Fixed constant
Fixed constant
•
•
•
Fixed constant
Fixed constant
Self-check result
Adjustment
Input-1 zero adjustment
Input-1 span adjustment
Output-1 zero adjustment
Output-1 span adjustment
Self-check result
Test
Forced output-1
Forced contact output-1
Self-check result
5
IM 77J04X12-01E 1st Edition Aug 31,2005-00
8. MAINTENANCE
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.
8.1 Calibration Apparatus
● A DC voltage/current standard (Yokogawa 7651 or the equivalent)
● A digital multimeter (Yokogawa 7561 or the equivalent)
● A calibrator (Yokogawa M&C CA71 or the equivalent)
● A precision resistor of 250 ±0.01%, 1 W
● Setting tool for adjustment (Refer to “4.2 Connector for Communi-
cation” in this manual.)
8.2 Calibration Procedure
(1) Connect the instruments as shown below.
(2) Use the DC voltage/current standard and apply input signals
equivalent to 0, 25, 50, 75, and 100% of input span to the computing unit.
(3) Check to see the output values obtained from the computation of
each input are within the specified accuracy rating. “R” is used for
current output.
● Use the setting tool (VJ77 Parameters 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
(1) Input the value equivalent to 0% value of input range.
(2) Call the display item (A: DISPLAY1) to check the input value in
A01: INPUT1.
(3) If the adjustment is necessary, call the adjustment item (P: AD-
JUST).
(4) Select P08: IN1 ZERO ADJ to enter the adjustment mode. Select
EXECUTE (adjustment) for adjustment. (If RESET is selected,
the adjusted value is reset to the factory-set default.)
(5) Input the value equivalent to 100% value of input range.
(6) Call the display item (A: DISPLAY1) to check the input value in
A01: INPUT1.
(7) If the adjustment is necessary, call the adjustment item (P: AD-
JUST).
(8) Select P09: IN1 SPAN ADJ to enter the adjustment mode. Select
EXECUTE (adjustment) for adjustment. (If RESET is selected,
the adjusted value is reset to the factory-set default.)
Output Adjustment Procedure
(1) When adjusting 0% value of output, call the adjustment item (P:
ADJUST) to select P26: OUT1ZERO ADJ.
(2) If there is a positive deviation, correct it by setting a negative
value to offset the deviation. If there is a negative deviation, correct it by setting a positive value.
*: 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 “7. 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]
Power supply
Contact output
10
Calibrator
11
GND
L+
7
N–
8
9
Receiving resistor
( for current input)
8 7 6 5
4
39
10 11
1 2
Input
3
4
Output
R
DMM
5
R
6
DC voltge/
current
standard
R: Receiving resistor
for current input
Contact input
1
2
R: 250 Ω precision resistor
for current output
6
IM 77J04X12-01E 1st Edition Aug 31,2005-00
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