Apollo Seiko OMEGA - Loop Error Function

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14.5 Loop Error Function
［Function］
It is the function detecting an output error.
When it satisfies Loop error PV threshold setting and the threshold of Loop error operating
amount setting, it judges PV variation for every loop error time setting.
When PV variation is smaller than Loop error PV variation, it detects a loop error.
When Loop error variation setting is “0”, it performs only time judgement by Loop error time
setting.
It detects a loop error when the time satisfying Loop error PV threshold setting and the
threshold of Loop error operation amount setting exceeds Loop error time setting.
［Operation Example］
SV
ﾙｰﾌﾟ異常
PV閾値
ﾙｰﾌﾟ異常
操作量閾値
操作量
100%
操作量
0%
現在
操作量
ﾙｰﾌﾟ異常
OFF
ON
ﾙｰﾌﾟ異常時間設定 ﾙｰﾌﾟ異常時間設定 ﾙｰﾌﾟ異常時間設定
判定しない
範囲
判定する
範囲
判定する
範囲
判定しない
範囲
PVが[SV - ﾙｰﾌﾟ異常PV閾値]
の偏差範囲以下の場合に、
ﾙｰﾌﾟ断線の判定を行います。
ﾙｰﾌﾟ異常時間
ﾙｰﾌﾟ異常PV変化量
Non-judging
Range
Judging Range
Judging Range
Non-judging
Range
Loop Error PV
Threshold
Loop Error PV Variation
Loop Error
Time
Operation
Amount
Upper Limit
Loop Error
Operation
Amount
Threshold
Current Operation
Amount
Operation
Amount
Lower Limit
Loop Error
Loop Error
Time Setting
Loop Error
Time Setting
Loop Error Time Setting
When PV is less than the
deviation range of [SV –
Loop error PV threshold],
it performs judging of loop.
disconnection.