YOKOGAWA VJQ7 Instruction Manual
YOKOGAWA VJQ7 Instruction Manual

YOKOGAWA VJQ7 Instruction Manual

Analog/pulse transmitter

Advertisement

Instruction
Manual
IM 77J01Q17-01E
1. CAUTIONARY NOTES FOR SAFE
USE OF THE PRODUCT
For the correct use of this product, read through this manual before
use. The following safety symbol is indicated on the product to en-
sure safe use.
CAUTION
If this symbol is indicated on the product, the operator
should refer to the explanation given in the instruction
manual in order to avoid personnel injury or death to either
themselves or other personnel, and/or damage to the instru-
ment. The manual describes the special care the operator
should exercise to avoid shock or other dangers that may re-
sult in injury or loss of life.
The following symbol marks are used only in this manual.
IMPORTANT
Indicates that operating the hardware or software in a par-
ticular manner may damage it or result in a system failure.
NOTE
Draws attention to information that is essential for under-
standing the operations and/or features of the product.
2. CHECKING PRODUCT SPECIFI-
CATIONS 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 main unit, 1
Instruction Manual (IM 77J01Q17-01E), 1
Accessories:
Tag number label, 1
Renge label, 1
Shunt registor (for specification of current input), 1
3. 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.
Keep this manual in a safe place.
Model VJQ7
Analog/Pulse Transmitter
4. MOUNTING METHODS
4.1
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 se-
cure the main unit with the main unit-fixing screw.
Main unit
Main
unit-fixing
screw
Fig. 4.1
4.1.1
29.5 or more
22 0.2
Fig. 4.2
4.2
DIN Rail Mounting
Locate the transmitter 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.
Fig. 4.3
Yokogawa M&C Corporation
Kojimachi Tokyu Bldg. (3F)
Kojimachi 6-6 Chiyoda-ku, Tokyo, 102 Japan
Tel: 81-3-3239-0576
Fax: 81-3-3239- 0585
Socket
Mounting
screws
Mounting Dimensions
Unit: mm
2-M4 or 2-ø4.5 or more
DIN rail
VIEW A (Rear of socket)
1st Edition Feb. 2000
Threaded hole for
fixing the main unit
DIN rail
Slide lock
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

Subscribe to Our Youtube Channel

Summary of Contents for YOKOGAWA VJQ7

  • Page 1 Shunt registor (for specification of current input), 1 VIEW A (Rear of socket) 3. 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: DIN rail •...
  • Page 2: Installation Location

    Rated fuse of 125VDC, 1A is stored. However, opera- thicker for power cables, and shielded twisted-pair cables tors can not replace the fuse. (AWG24) for communication wiring cables. All Rights Reserved. Copyright © 1999, Yokogawa M&C Corporation IM 77J01Q17-01E 3rd Edition Mar.31,1997-00...
  • Page 3: Setting Parameters

    Similar accuracy limitations exist even when AUTO Communications connector is selected. For more information on accuracy limitations, see the general specifications of VJQ7 (GS 77J1Q17-01E). Alarm output-1 LED (lights up if an alarm occurs) ALM 1 8.1.3 Input Range...
  • Page 4 An alarm ON delay is a delay time from the establishment of alarm condition to alarm output; an alarm OFF delay is a delay time from the establishment of return-to-normal condition to output. All Rights Reserved. Copyright © 1999, Yokogawa M&C Corporation IM 77J01Q17-01E...
  • Page 5 Alarm-1 hysteresis (10%) 1 sec. 2 sec. 3 sec. 4 sec. Alarm-2 hysteresis (5%) Alarm-2 setpoint (15%) Elapsed time 1 sec. Normal Alarm-1 action Normal Alarm Alarm-2 action Normal Alarm Normal All Rights Reserved. Copyright © 1999, Yokogawa M&C Corporation IM 77J01Q17-01E...
  • Page 6: Calibration Procedure

    Handy Terminal (JHT200). For adjust- ment, refer to Instruction Manual for VJ77 Parameters Setting Tools Fig. 11.1 (IM 77J01J77-01) or for Handy Terminal (IM JF82-01). All Rights Reserved. Copyright © 1999, Yokogawa M&C Corporation IM 77J01Q17-01E...

Table of Contents