Bfm#48][Bfm#88][Bfm#128][Bfm#168] Set Value (Sv); Alarm Setting Value 1 To 4 - Mitsubishi Electric MELSEC FX Series User Manual

FX -4LC User's Manual
3U

8.2.15 [BFM#48][BFM#88][BFM#128][BFM#168] Set value (SV)

To these buffer memories, enter the set value (SV) used in the PID arithmetic operation and alarm function.
The unit is " C", "0.1 C", " F", "0.1 F" or "mV" in accordance with the input type setting (BFM#208, BFM#214,
BFM#220 and BFM#226). Enter a value as follows in accordance with the decimal point position.
When the decimal point position is "0", enter a value as it is. When the decimal point position is "1", enter a
value multiplied by "10".
BFM No.
CH1 CH2 CH3 CH4
#48 #88 #128 #168 Setting range : Setting limiter lower limit to Setting limiter upper limit
8.2.16 [BFM#49 to 52][BFM#89 to 92][BFM#129 to 132][BFM#169 to 172]

Alarm setting value 1 to 4

To these buffer memories, enter the set value of each alarm set by the alarm mode setting buffer memories.
The alarm mode setting buffer memories allow arbitrary selection of 4 types of alarms among available 14
types of alarms. Write the setting value 1 to 4 of the alarm after setting the alarm mode. The unit and setting
range of the set value vary depending on the selected alarm mode. Enter the set value suitable to the
selected alarm mode.
BFM No.
CH1 CH2 CH3 CH4
Alarm 1 setting value
#49 #89 #129 #169 Setting range : Refer to the following
Alarm 2 setting value
#50 #90 #130 #170 Setting range : Refer to the following
Alarm 3 setting value
#51 #91 #131 #171 Setting range : Refer to the following
Alarm 4 setting value
#52 #92 #132 #172 Setting range : Refer to the following
Setting range
0 Alarm function OFF
Upper limit input value
1
alarm
Lower limit input value
2
alarm
Upper limit deviation
3
alarm
Lower limit deviation
4
alarm
Upper/lower limit
5
deviation
6 Range alarm
*1. Input range for internal temperature input
Scaling range for internal micro voltage input
External input range for external input
*2. Input span for internal temperature input
Scaling span for internal micro voltage input
External input span for external input
Caution
When handling numbers containing decimal places, multiply the set value by 10.
→ For details on the decimal point position, refer to Subsection 8.2.2.
→ For details on the setting limiter upper limit, refer to Subsection 8.2.40.
→ For details on the setting limiter lower limit, refer to Subsection 8.2.41.
→ For details on the input type, refer to Subsection 8.2.52.
Description
→ For details on the alarm mode setting, refer to Subsection 8.2.53.
Description
Alarm mode
- -
Upper limit input value alarm
7
with wait
Lower limit input value alarm
8
with wait
Upper limit deviation value
9
alarm with wait
Lower limit deviation value
10
alarm with wait
Upper/lower limit deviation
11
value alarm with wait
- -
Initial
value
0
Initial
value
0
0
0
0
- -
- -
- -
Upper limit deviation value alarm
12
with re-wait
Lower limit deviation value alarm
13
with re-wait
Upper/lower limit deviation value
14
alarm with re-wait
- -
8 Buffer Memory
8.2 Buffer Memory Details
R/W Backup
R/W
R/W Backup
R/W
R/W
R/W
R/W
Setting range
0
*1
Input range
*1
Input range
*2
-span to +span
*2
-span to +span
*2
0 to +span
*2
0 to +span
85
1
2
3
4
5
6
7
8
9
10