Juxta VJQ7 User Manual

Analog to pulse converter

Advertisement

User's
Manual
IM 77J01Q17-01E
Thank you for purchasing the JUXTA Signal Conditioner. Please read through this manual before use for correct handling.
CAUTIONARY NOTES FOR SAFE USE OF
THE PRODUCT
This User's Manual should be carefully read before installing
and operating the product. Please keep this User's Manual
for future reference.
The following symbol is used on the product and in this
manual to ensure safe usage.
This symbol is displayed on the product when
it is necessary to refer to the User's Manual for
information on personal and instrument safety.
This symbol is displayed in the User's Manual
to indicate precautions to avoid danger to the
operator, such as an electric shock.
The following symbols are used only in this manual.
NOTE
Draws attention to essential information for
understanding the operations and/or functions of
the product.
CHECKING PRODUCT SPECIFICATIONS
AND THE CONTENTS OF PACKING
(1) Model Number and Specification Check
Check that the model number and specifications shown
on the nameplate attached on the side of the product are
as ordered.
(2) Contents of the Packing
Check that the packing contains the following items:
VJQ7: 1 unit
Tag number label, 1 sheet
Range label: 1 sheet
Shunt registor (for specification of current input), 1
piece
User's Manual (this manual): 1 copy
GENERAL
The VJQ7 is a plug-in analog/pulse Transmitter that converts
DC current or DC voltage signal into isolated transistor-
contact pulse or contactless AC switch pulse.
The VJQ7 converter features:
Either pulse output, communication function (RS-485), or
alarm output (2 relay contacts) is selectable as Output-2.
Various parameters such as input range can be set and
modified using a PC (VJ77(sold separately)) or Handy
Terminal (JHT200(sold separately) and the like).
Keep this manual in a safe place.
Model VJQ7
Analog to Pulse Converter
(Isolated Single-output and Isolated Dual-output Types)
MODEL AND SUFFIX CODES
Model
Suffix codes
VJQ7
-0 □ □ -□ □ □ 0 /□
-0
Output
configuration
Power supply
Input signal
Output-1 signal
Output-2 signal
Option
*1: Operating range: 85 to 264V
*2: Operating range: 12 to 36V
1.
MOUNTING METHODS
Note
Insert/pull out the main unit into/from the socket
vertically to the face of socket. Otherwise the
terminals are bent and it may cause a bad contact.
1.1 Wall Mounting
Loosen the main unit-fixing screw of the transmitter to
disconnect the main unit from the socket. Next, anchor the
socket onto the wall with screws. Then, plug the main unit
into the socket and secure the main unit with the main unit-
fixing screw.
Mounting screws
Main unit
Main unit-fixing screw
2-9-32, Naka-cho Musashino-shi, Tokyo 180-8750 Japan
Phone: +81-422-52-7179
Facsimile: +81-422-52-6793
You can download the latest manuals from the following website:
http://www.yokogawa.com/ns/juxta/im/
(Multi-function)
Description
Analog to Pulse Converter
(Multi-function)
Always -0
1
1 output
2
2 outputs
6
100-240 V AC/DC
7
15-30 V DC
0 to 50mA DC, span is
-A
5mA or more
–10 to +10V DC, span is
-1
0.1V or more
1
Open collector
3
Contactless AC switch
1
Open collector
3
Contactless AC switch
Communication function
P
(RS485)
Alarm output (2 relay
T
contacts)
N
No Output-2
0
Always 0
Blank: With socket
/SN
Without socket
Mounting Dimensions
29.5 or more
Socket
22±0.2
59±0.3
Threaded hole for
fixing the main unit
1st Edition Feb. 2000
4th Edition Mar. 2016
*1
*2
Unit: mm
2-M4 or
2-ø4.5 or more
IM 77J01Q17-01E

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the VJQ7 and is the answer not in the manual?

Questions and answers

Summary of Contents for Juxta VJQ7

  • Page 1 Then, plug the main unit into the socket and secure the main unit with the main unit- GENERAL fixing screw. Mounting Dimensions The VJQ7 is a plug-in analog/pulse Transmitter that converts Mounting screws Unit: mm DC current or DC voltage signal into isolated transistor- 29.5 or more 2-M4 or contact pulse or contactless AC switch pulse.
  • Page 2: Installation Location

    Note instrument. Moreover, provide indication that the switch is a device for turning off the power When power of VJQ7 is turned on/off, one pulse to the instrument. may be counted by the pulse input device which connects to the VJQ7.
  • Page 3: Setting Parameters

    Similar accuracy limitations exist even when AUTO and ALM2 LEDs light up if an alarm occus (those LEDs are is selected. For more information on accuracy provided only when the output-2 is specified for alarm output.) limitations, see the general specifications of VJQ7 Communications connector (GS 77J1Q17-01E). 5.1.3 Input Range...
  • Page 4 5.2.6 Stop Bit * When HIGH ALM (high-limit alarm) is set: Alarm is released when input signal < (alarm setpoint - hysteresis). Select and set 1 bit or 2 bits in F06: STOP BIT. * When LOW ALM (low-limit alarm) is set: Alarm is released 5.2.7 Input Decimal Point Position when input signal > (alarm setpoint + hysteresis). Namber of digits of decimal places (setting of D register •...
  • Page 5: List Of Parameters

    SELF CHK Self-check result Note ADJUST Adjustment ZERO ADJ1 Zero adjustment of input When power of VJQ7 is turned on/off, one pulse SPAN ADJ1 Span adjustment of input may be counted by the pulse input device which RESISTOR ADJ Adjustment of external input resistance connects to the VJQ7.
  • Page 6 Blank Page...

Table of Contents