13-11
13-4-2. Differential alarm
・
When input difference (absolute value) of 2 channel is over the alarm setting value, alarm will occur.
・
Differential alarm has differential higher-limit alarm and differential lower-limit alarm. In differential higher-limit,
alarm occurs when difference of input is bigger then alarm setting value. In differential lower-limit, alarm occurs
when difference of input is less then alarm setting value.
・
Setting number of alarm is up to 4 level by 1 channel. Alarm kinds can be set optionally in conjunction with higher
limit, lower limit (standard), differential higher limit, and differential lower limit.
【
Setting method
】
１）
Refer to setting of alarm and set it.
（Ⅰ．
Instruction manual
８－６．「ＡＬＡＲＭ」 ）
２）
Select [B] or [S] for kind.
３）
Input channel for calculating input difference in differential. Channel is 1 through 72.
４）
Refer to following figure for screen of setting list display (collective 12 point)
５）
Refer to following figure for display of setting parameter recording.
【
Note 1
】
The cursor dose not move to parameter input area of unnecessary setting depending on set alarm type.
Display 12 point correctively; however
display of level is only first level.
Select [Func1] key for switching next level.
Displayed level is switched every clicking
the key.
A window opens and select type of alarm using
▲
・
▼
keys.
Refer to below..
None
H Higher-limit
alarm
L Lower-limit
alarm
U
Rate-of-change increase-limit alarm
D
Rate-of change decrease-limit alarm
B
Differential higher-limit alarm
S
Differential lower-limit alarm
