YOKOGAWA VJQ8, Instruction Manual

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All Rights Reserved. Copyright © 1999, Yokogawa M&C Corporation IM 77J01Q08-01E
11.LIST OF PARAMETERS
No. Item Display Remark No. Item Display Remark
01 Model MODEL
02 Tag no. TAG NO
03 Self-check result SELF CHK
Display items
A Display1 DISPLAY1 B Display2 DISPLAY2
A01 Input value INPUT1 *1 B01 Input value INPUT1
A05 Output value 1 OUTPUT1 B05 Output value 1 OUTPUT1
A06 Output value 2 OUTPUT2 B06 Output value 2 OUTPUT2
A07 Alarm-1 status ALM1 STATUS B07 Alarm-1 status ALM1 STATUS
A08 Alarm-2 status ALM2 STATUS B08 Alarm-2 status ALM2 STATUS
A31 Integrating counter 1 COUNTER1 B31 Integrating counter 1 COUNTER1
A32 Integrating counter 2 COUNTER2 B32 Integrating counter 2 COUNTER2
A33 Integrating counter 3 COUNTER3 B33 Integrating counter 3 COUNTER3
A34 Integrating counter 4 COUNTER4 B34 Integrating counter 4 COUNTER4
A54 Status STATUS *2 B60 Self-check result SELF CHK
A56 Rev. no REV NO *1: Instantaneous frequency is displayed evenif conversion mode is pulse integration.
A58 MENU REV MENU REV *2: The Status is displayed for service personnel to see history records.
A60 Self-check result SELF CHK
Setting items
D Setting (I/O) SET(I/O) E Setting (alarm output) SET(ALM)
D01 Tag no. 1 TAG NO.1 E03 Alarm-1 setting SET POINT1
D02 Tag no. 2 TAG NO.2 E04 Alarm-2 setting SET POINT2
D03 Comment 1 COMMENT1 E05 Direction of alarm-1 action ALM1 ACTION
D04 Comment 2 COMMENT2 E06 Direction of alarm-2 action ALM2 ACTION
D10 Range unit UNIT E09 Alarm-1 hysteresis HYSTERESIS1
D13 Low input cut point LOW CUT E10 Alarm-2 hysteresis HYSTERESIS2
D19 Conversion mode SELECT MODE E11 Alarm-1 ON delay setting ON DELAY1
D20 Sample mode SAMPLE MODE E12 Alarm-2 ON delay setting ON DELAY2
D21 Sample time SAMPLE TIME E13 Alarm-1 OFF delay setting OFF DELAY1
D22 Input low range INPUT1 L_RNG E14 Alarm-2 OFF delay setting OFF DELAY2
D23 Input high range INPUT1 H_RNG E15 Direction of alarm-1 relay action RL1 ACTION
D38 Direction of output-1 action OUT1 DR E16 Direction of alarm-2 relay action RL2 ACTION
D39 Direction of output-2 action OUT2 DR E60 Self-check result SELF CHK
D50 Input filter INPUT FILTER F Setting (communication) SET(COM)
D60 Self-check result SELF CHK F01 Communication protocol PROTOCOL
F02 Address ADDRESS
F03 Baud rate BAUD RATE
F04 Parity PARITY
There are items not displayed depending on what output-2 is specified.
F05 Data length DATA LEN
F06 Stop bit STOP BIT
F07 Decimal point position of input INPUT DEC PT
F60 Self-check result SELF CHK
Adjusting items Test items
P Adjustment ADJUST1 Q Test TEST
P12 0% adjustment of output-1 OUT1 0% Q02 Forced output-1 OUT1 TEST
P13 100% adjustment of output-1 OUT1 100% Q03 Forced output-2 OUT2 TEST
P14 0% adjustment of output-2 OUT2 0% Q04 Forced output (alarm) ALM1 TEST
P15 100% adjustment of output-2 OUT2 100% Q05 Forced output (alarm) ALM2 TEST
P60 Self-check result SELF CHK Q60 Self-check result SELF CHK
12.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.
For cleaning the instrument, use a soft and dry cloth.
12.1 Calibration Apparatus
●
A pulse generator (Yokogawa FG300 or the equivalent): 1
●
A volt meter (Yokogawa 7562 or the equivalent) : 1
●
A counter (Hewllet-Packard Japan 5334B or the equivalent): 1
●
A precision resistor (250
⍀
±0.01% 1W): 1
12.2 Calibration Procedure
Connect the instruments as shown in Fig.12.1.
Produce input signals equivalent to 0, 25, 50, 75 and 100% of the in-
put span from the pulse generator to the converter. Then, check that
the converter's output signal shows voltages corresponding to 0, 25,
50, 75, and 100% of the input span within the rated accuracy range.
If the output signal is out of the rated accuracy range, adjust the out-
put signal level using the Handy Terminal (JHT200). For adjust-
ment, refer to Instruction Manual for VJ77 Parameters Setting Tools
(IM 77J01J77-01) or for Handy Terminal (IM JF82-01).
10 11
3 2 1
4 5 6
7 8 9
Input
Output-2
Output-1
Power supply
9
7
4
3
+
-
Pulse
Generator
R
+
-
5
2
Voltmeter
Voltmeter
R
R:For current output using 250
Ω
precision resistor
R:For current output using 250
Ω
precision resistor
+
-
11 10 8
L+
N- GND
Fig. 12.1