Yokogawa JUXTA FM1V Isolator (mV DC Input, Free Range Type) - Manual (Page 3)

3 IM 77J08M01-01E 1st Edition 2008.01.15-00
3. EXTERNAL WIRING
WARNING
Be sure to turn OFF the power supply before wiring to
avoid the risk of electric shock. Use a tester or similar
device to ensure that no power is being supplied to a
cable to be connected
.
M4 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
2 or thicker for signal cables, and that of 1.25 mm 2 or thicker
for power cables.
Wiring Diagram
2 3
4 5
6 7
6
7
4
5
Output
Power Supply
Input
2
3
+
–
+
– +
–
NOTE
●Do not connect anything to the terminals that are not
used in the wiring diagram. Otherwise it may cause
the malfunction or damage.
●The power line and input/output signal lines should
be installed away from noise-generating sources.
Otherwise accuracy cannot be guaranteed.
●Adhere strictly to the specifications to avoid
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.
●This product is sensitive to static electricity; exercise
care in handling. Before you operate the product,
touch a nearby metal part to discharge static
electricity.
Power Supply and Isolation
Power supply voltage: 24 V DC ±10% (percentage ripple: less
than 5% p-p)
Current consumption: FM1A 65 mA, FM1V 50 mA
Insulation resistance: 100 MΩ at 500 V DC between input and
output, output and power supply, and input and
power supply.
Withstand voltage: 1500 V AC/min. between input and (output
and power supply)
500 V AC/min. between output and power supply
4. SETTING PARAMETERS
The parameters are set as you specified in your order. Refer
to the following to change the default settings.
Set the parameters using a PC (VJ77 Parameter Setting Tool)
or the Handy Terminal. Refer to "5. 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 shown in
brackets "[ ]".
Connection of Setting Tools
VJ77 Dedicated adapter
[Provided with VJ77]
PC with VJ77 installed
Dedicated cable
[Provided with VJ77]
*Be sure to use the VJ77 of version R1.05 or later.
JHT200
Handy Terminal
JUXTA communication cable
3 pin connector (F9182ED)
[Provided with VJ77 and JHT200]
Setting Input Range
Set the zero percent value of input range in [B0: ZERO], and the
span of input range in [B : SPAN].
Setting range: -100 to +150 mV DC, span 3 mV or more
(However, the accuracy is limited if the span is less than 10
mV.)
Setting Burnout Action
Set the burnout operation in [B2: BURN OUT].
Set "OFF", "UP", or "DOWN."
NOTE
Wire resistance compensation should be applied when
the input wiring, the setting of input range, or burnout
operation has been changed.
5. LIST OF PARAMETERS
Parameter Display Items
A DISPLAY Display
A01 INPUT Input value
A02 OUTPUT Output value
A03 STATUS Status (*1)
A04 REV NO Revision number
B SET Setting
B01 TAG NO.1 Tag number 1
B02 TAG NO.2 Tag number 2
B03 COMMENT1 Comment 1
B04 COMMENT2 Comment 2
B10 ZERO Zero (0% of input range)
B11 SPAN Span (Input span)
B12 BURN OUT Burnout
C ADJUST Adjustment
C01 OUT 0% Output 0% adjustment
C02 OUT 100% Output 100% adjustment
C03 WIRING R Wire resistance compensation
C04 ZERO ADJ Input zero adjustment
C05 SPAN ADJ Input span adjustment
*1: This “STATUS” is for the customer’s engineer to check the history.