UM93001C
60 minutes
60 minutes
60 minutes
60 minutes
60 C
60 C
60 C
60 C
5 minutes
5 minutes
30
minutes
30
minutes
35
minutes
35
minutes
65 minutes
65 minutes
-10 C
-10 C
-10 C
-10 C
Figure 5.9
Figure 5.9
Temperature Profile
of Chamber
Temperature Profile
of Chamber
Example 2: Programmable Bread Baking Oven
Example 2: Programmable Bread Baking Oven
Bread is baked in batches. A ramp is incorporated to control the thermal
gradient to suit for making the bread. A dwell timer is used to shut off the oven
power and announce the baker. The system is configured as shown in the
following diagram.
Bread is baked in batches. A ramp is incorporated to control the thermal
gradient to suit for making the bread. A dwell timer is used to shut off the oven
power and announce the baker. The system is configured as shown in the
following diagram.
Figure 5.10
Figure 5.10
A Bread Baking Oven
A Bread Baking Oven
+
+
1
9
2
10
3
11
4
12
5
13
6
14
7
15
BTC-9300
8
16
AC Relay
AC Relay
OFF
ON
220VAC
Mains
220VAC
Mains
Heater
Heater
Baking
Oven
Baking
Oven
Terminal 7 , 8 use
Form B Relay
Terminal 7 , 8 use
Form B Relay
Order a form B relay for Alarm 1. Push ON switch to start a batch. The
temperature will rise with a ramp rate determined by RAMP value. Bread is
baked with the set point temperature for a definite time which is programmed
by TIME value, and then the power is shut off. The temperature profile is
shown in the following Figure.
Order a form B relay for Alarm 1. Push ON switch to start a batch. The
temperature will rise with a ramp rate determined by RAMP value. Bread is
baked with the set point temperature for a definite time which is programmed
by TIME value, and then the power is shut off. The temperature profile is
shown in the following Figure.
BTC-9300 provides 4-20 mA signal to control the speed of the Inverter.SP.P2
being chosen for EIFN is for the purpose of accomplishing a dual PID control.
You can perform auto-tuning twice at SP1 and SP2 for initial setup to the dual
PID values. Refer
and
.
Sections 3-19
4-3
BTC-9300 provides 4-20 mA signal to control the speed of the Inverter.SP.P2
being chosen for EIFN is for the purpose of accomplishing a dual PID control.
You can perform auto-tuning twice at SP1 and SP2 for initial setup to the dual
PID values. Refer
and
.
Sections 3-19
4-3
40
minutes
40
minutes
40
minutes
40
minutes
180 C
180 C
180 C
180 C
Cooling
down
Cooling
down
Restart a
new batch
Restart a
new batch
30 C/min
30 C/min
PV
30 C
30 C
5
45
Time
( minutes )
Time
( minutes )
A1FN=TIMR
SPMD=MINR
Time=40.0 ( minutes )
RAMP=30.0 ( C/min )
Alarm 1: Form B Relay
A1FN=TIMR
SPMD=MINR
Time=40.0 ( minutes )
RAMP=30.0 ( C/min )
Alarm 1: Form B Relay
Figure 5.11
Figure 5.11
Temperature Profile
of Baking Oven
Temperature Profile
of Baking Oven
91