AUBER INSTRUMENTS
WWW.AUBERINS.COM
2020.06
P10/10
Steps:
Step 1: r01 = 2000, t01 = 0, C01 = 100.
Initial step
Step 2: r02 = 30, t02 = 60, C02 = 400.
Ramp up from 100° C to 400° C in 30
minutes (ramp speed is (C02 - C01) / r02 = 10° C /minute), then maintain at
400° C for 60 minutes.
Step 3: r03 = 120, t03 = 60, C03 = 160.
Ramp down from 400° C to 160° C in
120 minutes (ramp speed is (C03
–
C02) / r03 = -2° C /minute), then maintain at
160° C for 60 minutes.
Step 4: r04 = 0, t04= 0, C04 = 0.
End of the program
Parameters:
SSb = 5. Safety start band is set to 5 degree.
LOOP = 1. Program automatically looping is enabled.
ALP = 1. Alarm 1 is set to absolute high alarm.
AL1 = 420° C. Alarm 1 will be activated when reading temperature is over 420° C
AL2 = 10. Program ending alarm is set to 10s. Once all the steps have been
executed, alarm 2 will be activated for 10s.
T = 20. Output cycle time set to 20s.
Note
: When the program jumps back to step 1, the oven temperature is still at
160° C, the program will pause until the temperature drops within the deviation
alarm range of the new set point. As the deviation high alarm is set to 5° C, the
program will resume (from the beginning) as soon as the temperature drops
below SV + SSb = 105° C.
The temperature control block is shown below.
100
Time (min)
160
400
Temp
(° C)
30
90
210
1. Ramp
2. Soak
AL2 OFF
Relay AL2
(Program End)
AL2 ON
AL2 OFF
3. Cool down
4. Hold
Ready section,
no timing
1. Ramp,
new cycle
AL1 OFF
Relay AL1
(High Temp)
AL1 ON
AL1 OFF
Figure 12. Temperature profile and relay AL1 & AL2 actions in the example
program.
8.3.
Example 3: powder coating oven
A powder coating oven needs to heat up to 375° F at its maximum speed. Then
hold the temperature for 20 minutes. After that, pull in the AL2 relay for 2 minutes.
If the temperature is higher than 450° F, trigger the AL1 relay. This application
needs a controller SYL-5342P, a 40A/240V contactor, a thermocouple and one
buzzer with a 12V DC power source.
a. Wiring
L2
Contactor
TC
+
-
1
13 14
6
2
3
4
5
7
8
9
10
L1
240V AC
Heater
Alarm1
12V
DC
Alarm2
Figure 13. Wiring diagram for the oven in example 3.
b. Parameter setting and program
SSb = 5. Safety start band is set to 5 degree.
LOOP = 0. Program automatically looping is disabled.
ALP = 1. Alarm 1 is set to absolute high alarm.
AL1 = 450. Alarm 1 will be activated when reading temperature is over 450
AL2 = 120. Program ending alarm is set to 120s. Once all the steps have been
executed, alarm 2 will be activated for 120s.
T = 20. Output cycle time set to 20s.
CF = 1. Fahrenheit temperature display.
The program:
r01 = 2000, t01 = 20, C01 = 375.
Heat up to 375 as fast as possible, then soak
at 375 for 20 minutes
r02 = 0, t02 = 0, C02 = 0.
End of the program.
Auber Instruments
5755 North Point Parkway, Suite 99
Alpharetta, GA 30022
www.auberins.com
Email: [email protected] Tel: 770-569-8420
Copyright 2007-2020, Auber Instruments Inc. All Rights Reserved.
No part of this manual shall be copied, reproduced, or transmitted in any way without the
prior, written consent of Auber Instruments. Auber Instruments retains the exclusive rights
to all information included in this document.
