Auber WS-1500EBPM Bedieningshandleiding - Pagina 13

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and press SET will activate the auto-tune. The next setting is the "t" setting, use "-" and

"+" to set the cycle time value. This value should remain 2 for most application. After

change the PID parameter, the controller needs to be turned off and on again for the best

result.

B) The second group is about the system configuration and set up. Once they are set,

they normally do not need to be changed. This group of parameters can be accessed by

input code 155. If you don't want your system to be altered by other people, do not let

others know this code. Table 4 shows the list of the parameters, their range and initial set

value.

Table 4. List of control parameters and the initial settings under code 155

Symbol

Display Description

OAL

COOL

00t

Out

C-F

Details about each parameter.

 SC, calibration offset. The parameter is used to make the input offset to

compensate for the error produced by sensor. Each unit is 0.1 degree. e.g. if the

temperature displays 2.0 °C in ice water mixture, set SC=-2.0 will make the

display to shown 0.0 degree.

 AL, Alarm temperature in degree. When the temperature passes the alarm set

value, the alarm LED and buzzer will be turned on. When the temperature drops

to that value, the LED and buzzer will be turned off. The alarm is for high limit

alarm only. It will not shut off the out.

 FA. Alarm buzzer control. When FA=1, the buzzer will be on when the alarm

LED is lit. When the FA=0, the buzzer will not be turned on at the alarm

temperature.

 oAL. Open loop alarm. This parameter is for detecting an open loop in the control

system. e.g. if the sensor was forgotten to be inserted in the oven, or the sensor is

defective, or the heater is defective. When enabled (oAL=1), it will shut off the

Off set (degree)

Alarm Setting

Alarm buzzer

Open loop alarm

Hysteresis band

Control mode (heating or cooling)

Output power reduction (%)

Temperature unit

Range

Initial

-20.0 ~+20.0

-58.0-392.0°F

-50.0-200.0°C

180.0

0=off 1=on

0-100

0.3

0=heat 1=cool

1-100

100

°C or °F

°C