Auber SYL-2342P Руководство по эксплуатации - Страница 5
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AUBER INSTRUMENTS
4.5.3. Manual mode
Manual mode allows the user to control the output as a percentage of the
total heater power. It is like a dial on a stove. The output is independent of the
temperature sensor reading. One application example is controlling the
strength of boiling during beer brewing. You can use the manual mode to
control the boiling so that it will not boil over to make a mess. The manual
mode can be switched from PID mode but not from On/off mode. This
controller offers a "bumpless" switch from the PID to manual mode. If the
controller outputs 75% of power at PID mode, the controller will stay at 75%
when it is switched to the manual mode, until it is adjusted manually. See
Figure 3 for how to switch the display mode. The Manual control is initially
disabled (A/M=2). To activate the manual control, set A/M=0 or 1.
4.6 Cycle time "t"
It is the time period (in seconds) that the controller uses to calculate its
output. e.g. When t=2, if the controller decides output should be 10%, the
heater will be on 0.2 second and off 1.8 seconds for every 2 seconds. Smaller
t values result in more precision control. For SSR output, t is set at the
minimum (2 seconds). For relay or contactor output, it should be set longer to
prevent contacts from wearing out too soon. Normally it is set to 20~ 4 0
seconds.
4.7 Input selection code for "Sn"
Table 3. Code for Sn and its range.
Sn code
Input device
0
K (thermocouple)
1
S(thermocouple)
2
WRe (5/26) (thermocouple)
3
T (thermocouple)
4
E (thermocouple)
5
J (thermocouple)
6
B (thermocouple)
7
N (thermocouple)
20
Cu50 (RTD)
21
Pt100 (RTD)
26
0~80Ω
27
0~400Ω
28
0~20mV
29
0~100 mV
30
0~60 mV
31
0~1V
0.2~1V
32
4-20mA (w/ 50Ω Resistor)
1~5V
33
4~20mA (w/ 250Ω Resistor)
34
0~5V
35
-20~+20mV
36
-100~+100mV
37
-5V~+5V
4.8 Decimal point setting "dP"
1) In case of thermocouple or RTD input, dP is used to define temperature
display resolution.
dP=0, temperature display resolution is 1 ºC (ºF).
dP=1, temperature display resolution is 0.1 ºC . The 0.1 degree resolution is
only available for Celsius display. The temperature will be displayed at the
resolution of 0.1 ºC for input below 1000 ºC and 1 ºC for input over 1000 ºC.
2011.02
Display range (ºC) Display range (ºF)
-50~+1300
-58~2372
-50~+1700
-58~3092
0~2300
32~4172
-200~350
-328~662
0~800
32~1472
0~1000
32~1832
0~1800
32~3272
0~1300
32~2372
-50~+150
-58~302
-200~+600
-328~1112
-1999~+9999 Defined by user
with P-SL and P-SH
2) For linear input devices (voltage, current or resistance input, Sn=26-37)
Table 4. dP parameter setting
dP Value
0
Display format
0000
000.0
4.9 Limiting the control range, "P-SH" and "P-SL"
1) For temperature sensor input, the "P-SH" and "P-SL" values define the set
value range. P-SL is the low limit, and P-SH is the high limit.
e.g. Sometimes, you may want to limit the temperature setting range so that
the operator can't set a very high temperature by accident. If you set the P-
SL=100 and P-SH =130, operator will only be able to set the temperature
between 100 and 130.
2) For linear input devices, "P-SH" and "P-SL" are used to define the display
span. e.g. If the input is 0-5V. P-SL is the value to be displayed at 0V and P-
SH is the value at 5V.
4.10 Input offset "Pb"
Pb is used to set an input offset to compensate the error produced by the
sensor or input signal itself.
For example, if the controller displays 5 ºC when probe is in ice/water mixture,
setting Pb=-5, will make the controller display 0 ºC.
4.11 Output definition "OP-A"
This parameter is not used for this model. It should not be changed.
4.12 Output range limits "OUTL" and "OUTH"
OUTL and OUTH allow you set the output range low and high limit.
OUTL is a useful feature for a system that needs to have a minimum amount
of power as long as the controller is powered. e.g. If OUTL=20, the controller
will maintain a minimum of 20% power output even when input sensor failed.
OUTH can be used when you have an overpowered heater to control a small
subject. e.g. If you set the OUTH=50, the 5000 watt heater will be used as
2500W heater (50%) even when the PID wants to send 100% output.
4.13 Alarm output definition "AL-P"
Parameter "AL-P" may be configured in the range of 0 to 31. It is used to
define which alarms ("ALM1", "ALM2", "Hy-1" and "Hy-2") is output to AL1 or
AL2. Its function is determined by the following formula:
AL-P=AX1+BX2+CX4+DX8+EX16
If A=0, then AL2 is activated when Process high alarm occurs;
If A=1, then AL1 is activated when Process high alarm occurs;
If B=0, then AL2 is activated when Process low alarm occurs;
If B=1, then AL1 is activated when Process low alarm occurs;
If C=0, then AL2 is activated when Deviation high alarm occurs;
If C=1, then AL1 is activated when Deviation high alarm occurs;
If D=0, then AL2 is activated when Deviation low alarm occurs;
If D=1, then AL1 is activated when Deviation low alarm occurs;
If E=0, then alarm types, such as "ALM1" and "ALM2" will be displayed
alternatively in the lower display window when the alarms are on. This makes
it easier to determine which alarms are on.
If E=1, the alarm will not be displayed in the lower display window (except for
"orAL"). Generally this setting is used when the alarm output is used for
control purposes.
For example , in order to activate AL1 when a Process high alarm occurs,
trigger AL2 by a Process low alarm, Deviation high alarm, or Deviation low
alarm, and not show the alarm type in the lower display window, set A=1,
B=0, C=0, D=0, and E=1. Parameter "AL-P" should be configured to:
AL-P=1X1+0X2+0X4+0X8+1X16=17 (this is the factory default setting)
Note: Unlike controllers that can be set to only one alarm type (either
absolute or deviation but not both at same time), this controller allows both
alarm types to function simultaneously. If you only want one alarm type to
function, set the other alarm type parameters to maximum or minimum
(ALM1, Hy-1 and Hy-2 to 9999, ALM2 to –1999) to stop its function.
4.14 "COOL" for Celsius, Fahrenheit, Heating, and Cooling Selection
Parameter "COOL" is used to set the display unit, heating or cooling, and
alarm suppression. Its value is determined by the following formula:
COOL=AX1+BX2+CX8
A=0, reverse action control mode for heating control.
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