16 Channel Renard with SSR Assembly Instructions: Difference between revisions

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== Options ==
== Options ==
==== 240 AND 24 volt Conversion ====
==== 240 or 24 volt Conversion ====
The original controller was designed for operation on 110VAC and many of the parts were specified for 110V. The board will operate at other voltages, however a number of changes need to be made.
The original controller was designed for operation on 110VAC and many of the parts were specified for 110V. The board will operate at other voltages, however a number of changes need to be made.


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Gate Resistors - The original value for the gate resistors (item 7) was 180 ohms. For 24VAC operation, the gate resistors need to be changed to 33 ohms.
Gate Resistors - The original value for the gate resistors (item 7) was 180 ohms. For 24VAC operation, the gate resistors need to be changed to 33 ohms.


H11AA1 limiting resitors - These will need to be changed to 3.3k.
H11AA1 limiting resitors - These will need to be changed to 3.3k 1/4 watt.


'''240VAC switching.'''
'''240VAC switching.'''
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Gate Resistors - The original value for the gate resistors (item 7) was 180 ohms. For 240VAC operation, the gate resistors need to be changed to 360 ohms.
Gate Resistors - The original value for the gate resistors (item 7) was 180 ohms. For 240VAC operation, the gate resistors need to be changed to 360 ohms.


H11AA1 limiting resitors - These will need to be changed to 33k.
H11AA1 limiting resitors - These will need to be changed to 33k and 2 watt. As this is not practical I am going to suggest another option.


==== Computer feed/power cable ====
==== Computer feed/power cable ====

Revision as of 14:06, 18 June 2007

Overview

  • Assembly Time: 2 hours
  • Skill Level: Medium

Disclaimer

ALL INFORMATION WITHIN THIS DOCUMENT IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. I DO NOT GUARANTEE ANY INFORMATION IN THIS DOCUMENT IS ACCURATE, AND IT SHOULD BE USED FOR ABSTRACT EDUCATIONAL PURPOSES ONLY.

THIS FILE IS DISTRIBUTED IN THE HOPE THAT IT WILL BE USEFUL, BUT WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Reference Material

Tools

  • Bench Soldering Iron
  • Silver Solder
  • Flat cut dykes
  • Desoldering bulb

Other Requirements

  • You will need an RS232 to RS485 converter. I would suggest EBAY

Related Documents/Links

Build Steps

Install Item Qty Mouser P/N Location Notes
1. IC sockets 6 pin 17 571-3902611 U3-U19 Make sure they are oriented the same way as the silk screen image. U19 is oriented opposite of the others.
2. IC Sockets 8 Pin 2 575-193308 U20 & U21 .
3. IC Sockets 14 Pin 2 575-199314 U1 & U2 .
4. Bossman Fuse Holder 4 504-1a3399-10 H1 & H2 pads Make sure the notch on the fuse holder is oriented so one is on the top and the other on the bottom to properly hold the fuse.
5. Euro Sytle Terminal Blocks 11 538-398890-0302 Lower Edge of Board .
6. 15Kohm resistors 2 71-ccf60-15k-e3 R17 & R18 .
7. 178ohm resistors 16 273-178-rc R1 - R16 Orient the colored bands all the same way for ease of troubleshooting later.
8. 10pin 680ohm bus resistor 2 266-680 above U7 & U15 .
Numbered Photo - Numbers coorospond to the build steps

9. 2 ping jumper mount 4 571-3-644456-2 J1 - J4 .
10. Green LED 2 604-wp7104gt Ch2Diag #1 & #2 The short leg of the led goes to the flat side of the silkscreening
11. Monolithic Radial Capactor 2 81-rpee41h105m4k1e12 C1 & C2 .
12. Amp Modular Jacks rj45 2 571-5520251-4 Upper Right and Left .
13. Coated axial ceramic capacitors 2 80-c410c104m5u C3 & C4 .
14. Voltage Regulator 1 821-TS7805C2 5vReg .
15. 8 amp Triac 16 511-BTA08-400b Bottom of board Be sure to solder these well as they will be carrying 110v A/C
16. 1K ohm resistors 3 660-mf1/4dc1001f R20, R21 & R24 .
17. Crystal Clock oscillator 1 520-tck1843-x OSC1 .
18. 22k ohm resistor 3 660-mf1/4dlt52r2702f R19, R22 & R23 .
Numbered Photo - Numbers coorospond to the build steps

19. zener diod 1 78-in5239b D2 .
20. zener diode 1 512-1n5229b-t50a D1 .
21. 120 ohm resistor 1 660-mf1/4dct52r1200f R26 .
22. VR/50v diod 1 625-1n4001-e3 D3 .
23. red led 1 604-wp7104ec Top Center .
24. H11aa1 1 782-h11aa1 U19 .
25. Rs485 2 837-isl81487eip U20 & U21 .
26. Pic Chips 2 11-11 #2 .
27. fuses 2 504-gma-5 H1 & H2 .
28. Heat Sync 1 532-574502B00 5vReg .


Still Entering Give me so time to finish before you edit this please

Options

240 or 24 volt Conversion

The original controller was designed for operation on 110VAC and many of the parts were specified for 110V. The board will operate at other voltages, however a number of changes need to be made.

The first decision to be made is what voltage you want to switch. The triacs are responsible for switching the primary voltage. The is no reason that the primary voltage for the TRIACs could not be 240VAC or 24VAC, however the circuit will need to be modified.

One of the major changes is the ZC detect section of the controller. The original circuit specified a H11AA1 for the optoisolator, with two 15k ohm 1watt resistors for current limiting. Details on the H11AA1 can be found here

H11AA1 Datasheet

I understand that the 15kohm values are calculated as follows:

I(fwd) = 5mA

V(rms) = 110 VAC RMS

V (peak) = V(rms) * 1.41 = 150VAC

R = V(peak) / I (fwd) = 150V / 0.005 A = 30k ohm Two resistors of 15 k each for a total of 30k.

P = I * R (squared) = 0.005 * (15000 * 15000) = 0.75W per resistor.


24VAC switching.

Parts Required and changes.

Gate Resistors - The original value for the gate resistors (item 7) was 180 ohms. For 24VAC operation, the gate resistors need to be changed to 33 ohms.

H11AA1 limiting resitors - These will need to be changed to 3.3k 1/4 watt.

240VAC switching.

Parts Required and changes.

Gate Resistors - The original value for the gate resistors (item 7) was 180 ohms. For 240VAC operation, the gate resistors need to be changed to 360 ohms.

H11AA1 limiting resitors - These will need to be changed to 33k and 2 watt. As this is not practical I am going to suggest another option.

Computer feed/power cable

Now you have installed all the parts, the next decision is how you will connect the controller to the PC, and how you will power the board.

The majority of the controller is run from a 5 volt DC regulator that is located on the PCB. The regulator is a 7805, and will provide a regulated 5VDC supply. The input voltage for the controller needs to be at least 9 VDC and no more than 15 VDC.

Checking the datasheet for the 7805, the minimum input voltage must be 2.0V greater than the V(out) = 7.0 V and with the input power diode (1N4001) having a Maximum Instantaneous Forward Voltage Drop of 1.1V, the absolute minimum is 8.1V.