Panasonic PAW280MAH2 Instrukcje Operacyjne Pobierz pdf (Strona 64)

Control

Parameter menu

No. Parameter

code

Parameter name Setting

range

Description

1 ALI Inactive –

2 HY Hysteresis 0 ... 50 Switching difference relative to the set value, unilateral (i. e. the value is added

either below (“heating mode”) or above (“cooling mode”) the set value)

3 P Proportional band (P) 000 ... 999 Proportional action for the PID-controlled system

4 i Integral time (I) 0 ... 999 s Integral action for the PID-controlled system

5 d Derivative time (D) 0 ... 999 s Derivative action for the PID-controlled system

6 T Output switching time (T) 1 ... 100 T represents a time value equivalent to the minimum period of time during which the

output maintains in switched status (only active in PID mode).

7 SC Setpoint calibration (SC) –50 ... +500 °C Sensor calibration (subtracts/adds the set temperature value from/to the actual

value)

8 AT Auto-Tuning 0 / 1 0 = OFF / 1 = ON

9 LOC Password protection for

access to menu (LOC)

0 ... 999 LOC = 0, changes to menu A and Auto-Tuning allowed

LOC = 1, no changes on parametrization level allowed; changes to set values

possible

LOC = 2, no changes to any parameters allowed

1 With a higher value, the controller will try to maintain the temperature using a lower cycle frequency with a longer

cycle time. In principle, cycle times for mechanical relay outputs should be chosen to be as long as possible, to avoid

early wear and tear by high cycle frequencies.

However, when using Solid State Relay outputs (SSR) short cycle times may result in a temperature curve with

enhanced linearity, while the cycle frequency has no relevance for the wear-free electronic SSR outputs.

2 AutoTuning must be performed during normal operation with the load applied.

However, during Auto-Tuning mode the system may heat up to temperatures signicantly exceeding the set tempera-

ture value. Therefore, for sensitive applications the set value should be reduced before the start of the Auto-Tuning

mode.

Auto-Tuning is terminated automatically (after max. 9 hours) or aborted prematurely if the following conditions occur:

● Set temperature value is changed

● Actual temperature takes on an abnormal value (out of limits)

● Controller is switched off or power supply is interrupted for at least 20 ms

● Maximum Auto-Tuning duration of 9 hours is exceeded.

3 Blocked parameters can be changed, but changed values cannot be conrmed.

Switching from PID mode to ON/OFF mode

1. To switch from PID mode to ON/OFF mode, the P, I and D parameters (menu items 3

through 5) must be set to the value “0” (zero). For detailed steps see section “Changing val-

ues in the ‘Parameter’ menu” above.

2. During ON/OFF mode, if the PID parameter values (menu items 3 through 5) are

changed manually or if Auto-Tuning (menu item 8) is activated, PID mode is automatically

re-activated.

Auto-Tuning in PID mode

The Auto-Tuning function of the thermostat can automatically determine optimum PID settings

for certain load conditions.

To use Auto-Tuning, the following requirements must be met:

● Controller is switched on.

● Load is applied.

● Set temperature value is set to a value which is

a. as close to the real set temperature as possible

b. low enough to avoid damage to the system caused by too high temperatures.

● LOC parameter (menu item 9) is set to “0” (zero).

1 2 ... 59 60 61 62 63 64 65 66 67 68 69 ... 73 74

Komentarze do niniejszej Instrukcji

Brak uwag

Panasonic PAW280MAH2 Instrukcje Operacyjne Strona 64

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Klimatyzatory typu split Panasonic PAW280MAH2