Auber WS-1500EBPM Operation Instruction Manual - page 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
Range
Initial
SC
SC
Off set (degree)
-20.0 ~+20.0
FA
FA
Alarm buzzer
0=off 1=on
0
OAL
OAL
Open loop alarm
0=off 1=on
0
Hy
HY
Hysteresis band
0-100
0.3
COOL
COOL
Control mode (heating or cooling)
0=heat 1=cool
0
Out
00t
Output power reduction (%)
1-100
100
C-F
C-F
Temperature unit
°C or °F
°C
180.0
AL
AL
Alarm Setting
-58.0-392.0°F
-50.0-200.0°C
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