TOHO ELECTRONICS TTM200 - Manual (Page 176)

48-7009-E 6-28
■ Primary control loop anomaly PV change threshold
SEt04
CNt
Setting content Initial value
31 PS1
Thermocouple/resistance temperature detector input
0.0 to 999.9 (°C)0 to 999 (°C)
Applicable only for time judgment when PS 1 = 0 (LoP1)
0
Voltage/current input
0 to 9999 (digit)
Applicable only for time judgment when PS 1 = 0 (LoP1)
Set the primary control loop anomaly PV change threshold.
The function is to detect an abnormality in the control loop.
When the time satisfying threshold of TS1 or MS1 exceeds LOP1, the loop abnormality is determined as
detected.
For details, see section “Loop abnormality function” on pages 5-38 and 39.
- The control loop anomaly PV change threshold is judged at each “LoP1” time.
- A loop abnormality is determined if each change threshold is judged to be equal to or below “PS1.”
- When [PS1 = 0] is true, only time judgment is executed using LOP1.
When the time satisfying threshold of TS1 or MS1 exceeds LOP1, the loop abnormality is determined as detected.
ＳＶ
ＰＶ
（ＰＳ1）
（ＬｏＰ1）