Yokogawa JUXTA M Series Digital Limit Alarms MVHK - Manual (Page 5)

IM 77J04H31-01E 3rd Edition : 2006.08.31-00
9.3 Input Adjustment
9.3.1 Connecting the Adjustment Instrument
Connect the input and supply voltage as shown in the figure below.
9.3.2 Adjusting Inputs
Carry out input adjustments between two points, or the low limit (BL: input adjustment
point LOW) and high limit (BH: input adjustment point HIGH) that have been set within the
adjustment range (see Section 9.1).
This subsection describes an example of making an input adjustment between two points,
or input scaling values “0” and “100” applied at 8 mA input (25% of measured input
range) and 16 mA input (75% of measured input range) with the MVHK range code No.
set to “97,” the measured input range set to “4 to 20 mA DC” and the input scaling value
(displayed value) set to “-50 to 150.”
Press to display
"LOC."
Press to display
"-1."
The MVHK enters the operable status as soon as the power is turned on, but requires 10 to 15 minutes
of warm-up to meet the performance requirements.
When you press the SET/ENT key for more than 3 sec.
with the Operation Parameter Screen displayed, the Setup
Parameter Screen 1 appears.
When the power is turned on, the PV screen of the
Operation Parameter Screen appears.
Press the SET/ENT key to display parameter "BL."
In this case, the DATA display shows the set minimum
input scaling value "-50."
Press the UP key to display "0" on the DATA display.
Press the SET/ENT key to accept this data.
Press the SET/ENT key to display the next parameter.
This causes parameter "AL" and the scaling value
corresponding to the measured value (8 mA) to appear
alternately.
Press the UP or DOWN key.
The decimal point blinks.
Press the SET/ENT key.
The value before adjustment "2" appears on the DATA
display.
Press the SET/ENT key to display the next parameter "BH."
Press this key for
more than 3 sec.
The decimal point blinks.
The decimal point blinks during
data change.
The decimal point blinks during
data change.
Press the SET/ENT key to display parameter "LOC."
Press the DOWN key to display "-1" on the DATA display.
Press the SET/ENT key to display the Setup Parameter
Screen 2.
Setup Parameter Screen 1
Setup Parameter Screen 2
Operation Parameter Screen
Power ON
Using the voltage/current standard, apply 8 mA input to the MVHK.
In this case, the DATA display shows the set maximum
input scaling value "150."
Press the DOWN key to display "100" on the DATA
display.
Press the SET/ENT key to accept this data.
Press the SET/ENT key to display the next parameter.
The decimal point blinks during
data change.
Press .
Press to
display "BL."
Press to display
"0."
Press .
Press .
The measured value and
parameter AL are
displayed alternately.
Press or .
Press .
Press .
"2" appears on the DATA
display.
Press to display
"100."
Press .
Press .
The previously adjusted value
will be reset.
The decimal point blinks during
data change.
This causes parameter "AH" and the scaling value
corresponding to the measured value (16 mA) to appear
alternately.
Press the UP or DOWN key.
The decimal point blinks.
Press the SET/ENT key.
The value before adjustment "99" appears on the DATA
display.
This completes the input adjustment for the MVHK.
Press the SET/ENT key to display parameter "RST."
Press the UP key to display "ON" on the DATA display.
Press the SET/ENT key.
This resets the previously adjusted value.
Using the voltage/current standard, apply 16 mA input to the
MVHK.
If additional re-adjustment must be made, take the following steps and then perform the
procedure above.
Press to display
"RST."
Press to display
"ON."
Press .
This completes the input
adjustment.
The decimal point blinks.
The measured value and
parameter AH are displayed
alternately.
Press or .
Press .
10. SETTING ACTIVE COLOR PV DISPLAY (PV DISPLAY COLOR CHANGING FUNCTION)
10.1 Setting Ranges and Factory-Set Values
Setup Parameter Screen 1
When PV display color mode (PCM) is 6 or 7:
PCL+1digit to 9999
When PV display color mode (PCM) is 8 or 9:
-100.0 to 100.0% of the measured input range
* The setting range depends on the setting of the
decimal point position (SDP).
Parameter Name Setting Range Factory-Set
Value
Parameter
Symbol
Ϫ
Ϫ
High limit for PV
display color change
(PCH)
When PV display color mode (PCM) is 6 or 7:
-1999 to PCH-1digit
When PV display color mode (PCM) is 8 or 9:
-100.0 to 100.0% of the measured input range
* The setting range depends on the setting of the
decimal point position (SDP).
Low limit for PV
display color change
(PCL)
Setup Parameter Screen 2
Parameter Name Setting Range
Factory-Set
Value
Parameter
Symbol
1
PV display color mode
(PCM)
*: PV display color is changed linking to the setting range of high limit (PCH) and low limit (PCL) for PV display color change.
0: Fixed in green
1: Fixed in red
2: Link to alarm 1
(under normal condition: green; at alarm status: red)
3: Link to alarm 1
(under normal condition: red; at alarm status: green)
4: Link to alarm 1 and alarm 2
(under normal condition: green; at alarm status: red)
5: Link to alarm 1 and alarm 2
(under normal condition: red; at alarm status: green)
6: PV limit*
(when more than PCL, less than PCH: green;
when PCL or less, PCH or more: red)
7: PV limit*
(when more than PCL, less than PCH:red;
when PCL or less, PCH or more: green)
8: SP deviation*
(when more than SP-PCL, less than SP+PCH: green;
when SP-PCL or less, SP+PCH or more: red)
9: SP deviation*
(when more than SP-PCL, less than SP+PCH: red;
when SP-PCL or less, SP+PCH or more: green)
10: Link to alarm 1 to alarm 4
(under normal condition: green; at alarm status: red)
11: Link to alarm 1 to alarm 4
(under normal condition: red; at alarm status: green)
10.2 Setting Active Color PV Display
This section describes an example of setting the PV display color mode (PCM) to “6,”
high limit for PV display color change (PCH) to “70” and low limit (PCL) to “20.”
The procedure below begins with the condition in which the Setup Parameter Screen 2 is
displayed.
When you press the SET/ENT key for more than 3 sec.
with the Operation Parameter Screen displayed, the Setup
Parameter Screen 1 appears.
Press the SET/ENT key to display parameter "PCH."
Press the UP or DOWN key to display "70" on the DATA
display.
Press this key for
more than 3 sec.
The decimal point blinks during
data change.
Operation Parameter Screen
This completes the process for
setting the high limit for PV display
color change.
Press to display
"PCH."
Press or
to display "70."
"""
Press .
Press to display
"PCL."
Press the SET/ENT key to accept the high limit for PV
display color change "70."
Press the SET/ENT key to display parameter "PCL."
Press the UP or DOWN key to display "20" on the DATA
display.
The decimal point blinks during
data change.
This completes the process for
setting the low limit for PV display
color change.
Press or
to display "20."
Press .
Press for more
than 3 sec.
Press the SET/ENT key to accept the low limit for PV
display color change "20."
Press the SET/ENT key for more than 3 sec.
This causes the Operation Parameter Screen to appear.
Press the SET/ENT key to display parameter "PCM."
Press the UP or DOWN key to display "6" on the DATA
display.
The decimal point blinks during
data change.
This completes the process for
setting the PV display color mode.
Press to display
"PCM."
Press or
to display "6."
Press .
Press for more
than 3 sec.
Press the SET/ENT key to accept PV display color
mode "6."
Press the SET/ENT key for more than 3 sec.
This causes the Operation Parameter Screen to appear.
Setting the PV display color mode
Setting the high and low limits for PV display color change
Setup Parameter Screen 1
Setup Parameter Screen 2
To the Operation Parameter Screen
5
10 11 1 2
3 9
8 7 6 5
4 7
8 N–
L+
(SUPPLY)
R: 100 ⍀ or 250 ⍀ , externally connected
for current input
Input signal Power supply
R
DC voltage/
current
standard
5
6 –
+
(IN)