4
IM 77J01A21-01E
3rd Edition
[%]
0
20
15
40
60
80
100
[1]
[2]
[3]
[4]
1 sec
2 sec
3 sec
4 sec
Alarm-2 hysteresis (5%)
Alarm-1 hysteresis (10%)
Alarm-1 setpoint (80%)
Alarm-2 setpoint (15%)
Elapsed time
sec
Alarm-1 ON delay
Alarm-1 OFF delay
Alarm conditions
established
Alarm conditions
established
Normal conditions
established
Normal conditions
established
Low-limit alarm ON
Low-limit alarm OFF
Alarm-2 ON delay
Alarm-2 OFF delay
[1]: Alarm status does not continue for more than 1 second after the
alarm conditions are established at alarm 1.
[2]: Normal status does not continue for more than 2 seconds after the
normal conditions are established at alarm 1.
[3]: Alarm status does not continue for more than 3 seconds after the
alarm conditions are established at alarm 2.
[4]: Normal status does not continue for more than 4 seconds after the
normal conditions are established at alarm 2.
Alarm conditions established
Alarm conditions established
High-limit alarm ON
High-limit alarm OFF
Normal conditions established
Normal conditions established
Alarm-1 action
Alarm-2 action
Alarm
Normal
Normal
Normal
Alarm
Normal
7. LIST OF PARAMETERS
DISPLAY
ITEM
MODEL
Model
TAG NO
Tag No.
SELF CHK
Self-check result
A
DISPLAY1
Display 1
A01 INPUT1
Input value 1
A09 OUTPU1
Output value 1
A15 ALM1 STATUS
Alarm-1 status
A16 ALM2 STATUS
Alarm-2 status
A54 STATUS
Status
*1
A56 REV NO
Rev No.
A58 MENU REV
Menu Rev
A60 SELF CHK
Self-check result
B
DISPLAY2
Display 2
B01 INPUT1
Input value 1
B09 OUTPUT1
Output value 1
B15 ALM1 STATUS
Alarm-1 status
B16 ALM2 STATUS
Alarm-2 status
B60 SELF CHK
Self-check result
D
SET (I/O)
Setting (I/O)
D01 TAG NO.1
Tag no.1
D02 TAG NO.2
Tag no.2
D03 COMMENT1
Comment 1
D04 COMMENT2
Comment 2
D41 LINEARIZE
Linearize
D42 LOW CUT
Low cut
D57 S/W FILTER
Software filter
D59 NMRR
Frequency setting
*2
D60 SELF CHK
Self-check result
E
SET(ALM)
Setting (alarm output)
E03 SET POINT1
Alarm-1 setting (%)
E04 SET POINT2
Alarm-2 setting (%)
E05 ALM1 ACTION
Direction of alarm-1 action
E06 ALM2 ACTION
Direction of alarm-2 action
E09 HYSTERESIS1
Alarm-1 hysteresis
E10 HYSTERESIS2
Alarm-2 hysteresis
E11 ON DELAY1
Alarm-1 ON delay setting
E12 ON DELAY2
Alarm-2 ON delay setting
E13 OFF DELAY1
Alarm-1 OFF delay setting
E14 OFF DELAY2
Alarm-2 OFF delay setting
E15 RL1 ACTION
Direction of alarm-1 relay action
E16 RL2 ACTION
Direction of alarm-2 relay action
E60 SELF CHK
Self-check result
P
ADJUST
Adjustment
P04 IN1 ZERO ADJ
Zero adjustment of input-1
P05 IN1 SPAN ADJ
Span adjustment of input-1
P60 SELF CHK
Self-check result
Q
TEST
Test
Q10 ALM1 TEST
Forced output (alarm 1)
Q11 ALM2 TEST
Forced output (alarm 2)
Q60 SELF CHK
Self-check result
*1
The status is displayed for service personnel to see
history records.
*2
The parameters are the items to be set at the factory.
8. MAINTENANCE
The product 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.
8.1 Calibration Apparatus
• A voltage and current generator (YOKOGAWA GS200 or the
equivalent): 1
• Digital Multimeter (YOKOGAWA 7561 or equivalent): 1
• Setting tool for adjustment (Refer to “4.2 Connecting the
Setting Tools” in this manual.)
8.2 Calibration Procedure
1.
Connect the instruments as shown in figure below.
10
11
3 2 1
4
5
6
7
8
9
11
10
8
9
7
5
2
1
3
3
4
GND
ALM2 (NO)
COM
ALM1 (NO)
COM
DMM
DMM
Input
With SINK current
Without SINK current
Alarm-2 output
Alarm-1 output
Power supply
L+
+
N–
–
+
–
voltage and
current
generator
voltage and
current
generator
2. Produce the input signal equivalent to 0% of the input range
from the voltage and current generator to the product.
3. Then, read the input value of Display items, “A01: INPUT1”
using the VJ77 and check that the input value is within the
rated accuracy range.
4. Take the same procedure for the input signal equivalent to 25,
50, 75 and 100% of the input range and check that the input
values are within the rated accuracy range.
For alarm output, check the relay action by the alarm indicator
lamp or resistance of output terminals.
● If it is outside the rated accuracy range, use the VJ77 PC-
based Parameters Setting Tool to make adjustments.
User’s Manual for VJ77 [Document No.: IM 77J01J77-01E]
9. TRANSPORT AND STORAGE CONDITIONS
• Temperature: -25 to 70°C
• Temperature change rate: 20°C per hour or less
• Humidity: 5 to 95%RH (no condensation)
CAUTION
Keep this product in a conductive bag when plugged
out, during transport or storage.
