Azbil C1M - Extended Tuning Bank

6-18
Chapter 6. Displayed Items and Settings

Extended tuning bank
Bank selection: ET
Display Item Description Initial
value
User
level
Notes
AT.TY
AT type 0: Normal (regular control characteristics)
1: Immediate response (to disturbance)
2: Stable (minimal PV fluctuation)
1 0 Displayed if the control method
is PID control (CtrL = 1).
SP.LG
SP lag constant 0.0 to 999.9 0.0 2
AT-P
AT proportional
band adjust
0.00 to 99.99 1.00 2
AT-i
AT integral time
adjust
0.00 to 99.99 1.00 2
AT-d
AT derivative time
adjust
0.00 to 99.99 1.00 2
AT.PT
Type of MV switching
point at AT
0: Default (2/3 of the deviation of the
initial PV from the initial SP)
1: SP
2: PV
0 2 Displayed if the control method
is PID control (CtrL = 1).
AT.Pv
MV switching point
PV in AT
−1999 to + 9999 U 0 2 Displayed if the control method
is PID control (CtrL = 1) and
type of MV switching point at AT
(At.Pt) is set to 2 (PV).
CTR.A
Control algorithm 0: PID (conventional PID)
1: Ra-PID (high-performance PID)
0 1 Displayed if the control method
is PID control (CtrL = 1).
CLg
Cooling Gain −10.0 to +110.0 % 30.0 2 Displayed if the control method
is PID control (CtrL = 1) and
shared PID heating/cooling
control is used (C23 = 2).