YOKOGAWA UTAdvanced Series, User Manual

Page: 714 / 866

14-57
IM 05P07A01-01EN
Functions and
Applications of D Registers (for UT75A)
14
14.4 UT75A D Registers
Loop-2 Control Action-related Setting (D4601 to D4690)
Register
No.
Description Range and meaning of value
D4601 SC_L2 Super function
0: OFF (Disable)
1: Overshoot suppressing function (normal mode)
2: Hunting suppressing function (stable mode)
Enables to answer the wider characteristic
changes compared with response mode.
3: Hunting suppressing function (response mode)
Enables quick follow-up and short converging
time of PV for the changed SP.
4: Overshoot suppressing function (strong
suppressing mode)
Note: Setpoints 2 and 3 must be used in PID control
or PI control. Disabled in the following controls:
1) ON/OFF control, 2) PD control, 3) P control,
4) Heating/cooling control
Do not use the function for the control
processes with response such as flow or
pressure control.
D4602
D4603
AT.TY_L2 Auto-tuning type 0: Normal, 1: Stability
D4604
AT.OH_L2
Output high limit in auto-tuning
-5.0 to 105.0% (Disabled in Heating/cooling control)
D4605 AT.OL_L2 Output low limit in auto-tuning
D4606 AT.BS_L2 SP bias in auto-tuning -100.0 to 100.0% of PV input range span (EUS)
D4607 to D4612
D4613
GW_L2 Non-linear control gap width
0: OFF
0.0+1digit to 50.0% of PV input range span (EUS)
D4614 GG_L2 Non-linear control gain 0.001 to 1.000
D4615 to D4625
D4626
AR_L2 Anti-reset windup (excess integration prevention) 0: AUTO, 50.0 to 200.0%
D4627
D4628
OLMT_L2 Output limiter switch
0: OFF (Disable output limiter in MAN mode)
1: ON (Enable output limiter in MAN mode)
D4629 O PR.U_L2 Upper-side output velocity limiter
0: OFF (Disable), 0.1 to 100.0%/s
D4630 O PR.L_L2 Lower-side output velocity limiter
D4631
MPON_L2
Manual preset output number selection
Select the output used in MAN mode when
switched from AUTO to MAN mode.
0: OFF (Hold the control output in AUTO mode
(bumpless))
1: Use manual preset output 1 (output bump)
2: Use manual preset output 2 (output bump)
3: Use manual preset output 3 (output bump)
4: Use manual preset output 4 (output bump)
5: Use manual preset output 5 (output bump)
D4632 MPO1_L2 Manual preset output 1
-5.0 to 105.0%
D4633 MPO2_L2 Manual preset output 2
D4634 MPO3_L2 Manual preset output 3
D4635 MPO4_L2 Manual preset output 4
D4636 MPO5_L2 Manual preset output 5
D4637 to D4652
D4653
RP1_L2 Reference point 1
0.0 to 100.0% of PV input range (EU)
(RP1 ≤ RP2 ≤ RP3 ≤ RP4 ≤ RP5 ≤ RP6 ≤ RP7)
D4654 RP2_L2 Reference point 2
D4655 RP3_L2 Reference point 3
D4656 RP4_L2 Reference point 4
D4657 RP5_L2 Reference point 5
D4658 RP6_L2 Reference point 6
D4659 RP7_L2 Reference point 7
D4660 RHY_L2 Zone PID switching hysteresis 0.0 to 10.0% of PV input range span (EUS)
D4661 RDV_L2 Reference deviation
0: OFF (Disable)
0.0 + 1 digit to 100.0% of PV input range span (EUS)
D4662 to D4690