YM:THYRO-A Thyristor controller

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1 Application

This Thyristor controller is used at the MDO IR Heating at PET lines

2 Adjustments

2.1 Thyristor controller

First we need to adjust the DIP Switches and potentiometer.

• Switch off the control voltage
• Confirm that the 230V/440V power is off
• Take off the front cover. There is a small clip which hold the cover!

• With Cover
  With Cover
• Without cover
  Without cover

• Adjust the DIP switches according to this table

Switch	Terminal	Setting	Description
S1	1	0
S1	2	1	… 1,2 operating mode (VAR-generalised phase control)
S1	3	1
S1	4	0
S1	5	0	… 3,4,5 control mode (U – control)
S1	6	0
S1	7	0
S1	8	0	… 6,7,8 setpoint input (0-10V)
S1	9	0
S1	10	1	… 9,10 analog output (0-10V not used)

• Adjust Poti R201

Measure the Resistance at the Potentiometer Pin 2 and 3 and adjust it to 22kΩ

File:AEG Thyro-A Poti.jpg

Poti R201

This are the default Poti Values, but check it again:

R202 = 31k

R203 = 31k

R204 = 30k

R205 = 20.5k

• Install back the front cover and close the clip

• Reconnect the 24V supply

2.2 Current switch

With this switch we control the current to be sure, the IR Heater is working. Because of the big range from 20 to 100% which we use, it is necessary to adjust this module to the lowest value (10%) to get always the input.

Check with the variable table in Simatic Manager every input of every module!

• File:AEG Thyro-A Current Switch.jpg
• File:Thyro-A IR Heater current Modul2.jpg

3 Function Test

Switch on the Power and make a function check with various setpoints between 20% and 80%. The current module should give us already the input with 20%.

Definition