UNI-T UT321 User Manual download pdf (Page 66)

5-4

IM 05D01D12-41E 6th Edition: Mar. 25, 2005-00

5.2 Lists of Parameters

* Parameters relating to PV or setpoints should all be set in real numbers.

For example, use temperature values to define target setpoints and alarm setpoints

for temperature input.

* The “User Setting” column in the table is provided for the customer to record setpoints.

* The column “Target Item in CD-ROM” in the table provides references from User’s

Manual (Reference) (CD-ROM version) which describes items in more detail and

items that are not contained in this manual.

* Numbers in ( ) are the parameter setpoints that apply when the communication func-

tion is used. ex. OFF (0), ON (1)

■ Operating Parameters

Parameter

Symbol

Name of Parameter Setting Range and Description Initial Value

User Setting

Target Item

in CD-ROM

Alarm 1-setpoint

Alarm 2-setpoint

Alarm 3-setpoint

PV alarm / SP alarm: -100.0 to 100.0% of PV

input range

Deviation alarm: -100.0 to 100.0% of PV input

range span

Output alarm: -5.0 to 105.0%

An alarm common to the 1.SP to 4.SP parameters.

PV high limit/SP high limit alarm:

100.0% of PV input range

Deviation alarm: 0.0% of PV

input range span

Other PV/SP low limit alarm:

0.0% of PV input range

Output high limit alarm: 100.0%

Output low limit alarm: 0.0%

Auto-tuning

OFF (0): No auto-tuning

1: Auto-tuning for 1.SP 2: Auto-tuning for 2.SP

3: Auto-tuning for 3.SP 4: Auto-tuning for 4.SP

AUTO (5): Performs auto-tuning to all groups 1 to 4.

OFF (0)

Target setpoint

number selection

0: Use target setpoint via communication.

1: Selects target setpoint 1 (1.SP).

2: Selects target setpoint 2 (2.SP).

3: Selects target setpoint 3 (3.SP).

4: Selects target setpoint 4 (4.SP).

PID parameter display

number

MENU (0): Move to FL parameter display

1Gr (1) to 4Gr (4): Display of each PID

parameter

MENU (0)

LL communication

interface selection

(A1)

(A2)

(A3)

(AT)

(SP.NO)

(PID)

OFF (0): Communication is carried out via the

RS485 communication terminals.

ON (1):

Communication is carried out via the light-

loader adapter.

with communication : OFF (0)

without communication : ON (1)

(LL)

OFF (0)

“Super” function

(SC)



Ref.2.1(5)

Ref.2.1(6)

Ref.4.1(1)

OFF (0): Disable

1: Overshoot suppressing function

Suppresses overshoots generated by abrupt

changes in the target setpoint or by

disturbances.

2: Hunting suppressing function (Stable mode)

Suitable to stabilize the state of control when

the load varies greatly, or the target setpoint is

changed.

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 target setpoint.

Note: Use “SUPER” function (SC) 2 or 3 in PID

control or PI control.

“SUPER” function 2 or 3 is not available in the

following controls:

1) ON/OFF control

2) P control (control for proportional band only)

3) PD control (control for proportional band and

derivative item only)

4) Heating/cooling control

Do not use hunting suppressing function when

control processes with response such as flow or

pressure control.

1 2 ... 61 62 63 64 65 66 67 68 69 70 71 ... 93 94

Comments to this Manuals

No comments

UNI-T UT321 User Manual Page 66

Comments to this Manuals

Related products and manuals for Multimeters UNI-T UT321