Page 12 - November December 2009

Signal kits/operating signals
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SIGM20 Signal Control Logic Definitions for TCS operation
Signal
Type
Switch No
Reverse zone
Next Signal
Block occupancy “red” signal conditions
“Red” signal conditions
520
diverging
508
A, East to West
526
BD10,2 BD10,6
Red if 508 T
524
diverging
501
B, West to East
522
BD10,6 BD10,2
Red if 501 T
526
block
n/a
A, East to West
next signal Green
BD10,5
Red if 501 T
522
block
n/a
A, West to East
next signal Green
BD10,1
Red if 508 T
521
diverging
508
A, East to West
527
BD10,3 BD10,8
Red if 508 C, 507 T
525
diverging
501
B, West to East
523
BD10,3 BD10,7 BD10,8
Redif501C,502C,503T,506T, 507T
527
block
n/a
B, East to West
next signal Green
BD10,5 BD10,7
Red if 502 C, 501 C, 503 T, 506 T
523
block
n/a
B, West to East
next signal Green
BD10,1
Red if 508 C
SIGM20 Reverse Running Zone Control Logic
Zone A is defined as the section between signal heads 520 and 524. Zone B is defined as the section between signal heads 521 and 525.
NB
American practice would normally define signals 520/521 and 524/525 and 526/527 as a single interlocking entity. However, we need to step down a level of interlocking logic to make the SIGM20 board operate the individual signal aspects in the correct sequence. I have therefore had to define each signal head as a separate number to simplify the programming logic on the SIGM20 board.
Zone
Condition
Logic
A
Go East–West if
Manually set by DTM30 CTC Panel
B
Go West–East if
Manually set by DTM30 CTC Panel
A
Go West–East if
Manually set by DTM30 CTC Panel
B
Go East–West if
Manually set by DTM30 CTC Panel
C
Shunt
Manually set by DTM30 CTC Panel – turn all signals to red
Contest Results – 2009 Convention at Swindon
Models
Steam Locomotives
1st Brian White (1890s Logging Loco) 91 pts (merit award) 2nd Paul Davis (Class A Climax) 75 pts
3rd Paul Davis (Plantation 2-8-0 Cab Loco) 74 pts
Diesel Locomotives and other power
1st Terry Wynne (BCR M420) 100 pts (merit award) 2nd Tom Winlow (Lehigh Valley #403) 76 pts
3rd Paul Lacey (Norfolk Southern SD40-2) 69 pts Freight Cars
1st Mick Moignard (D&RGW Gondola #1872) 116 pts (merit award)
Caboose
1st Mick Moignard (D&RGW Caboose #0578) 122 pts (merit award and Best in Show)
Non-Revenue – MoW
1st Mick Moignard (D&RGW Water Car # 04432) 120 pts (merit award)
2nd Mick Moignard (D&RGW Spreader) 99 pts (merit award) 3rd Mick Moignard (D&RGW Flanger) 98 pts (merit award) Structure On-line
1st Tom Winlow (Sycamore Feeds Mill) 106 pts (merit award) 2nd Mike Carter (Twomey’s Mercantile and Train Stop) 104 pts
(merit award)
3rd Steven Clements (Coal Silo with Working Loader) 94 pts
(merit award)
Structure Off-line
1st Steven Clements ‘Wooden Saloon with Boarding Rooms’ 115 pts (merit award)
Non-Rail
Handicraft Photographic
Photographic
Prototype (monochrome print)
Model (colour print) Prototype (colour print)
Sarah Herlihy (‘Iris’ Tapestry) (1st place)
Sue White (Place Mat and Coaster) (2nd place) Sue White (‘Moods’ Cross stitch) (3rd place) Kay Rudge (‘What is this Stuff?’)
I would like to thank the following people for giving up their time at the Swindon Convention on Saturday to assist with the Contest Judging – Steve Park, Jonathan Small, Vernor Bates, Derek Frow, Chris White, Alain Kap, Tom Winlow and Tony Gath, to Tom Watson and Keith Webb for judging the photog- raphy entries, and to Noleen Park and Sue Wynne who judged the Non-Rail section Handicrafts.
1st Alain Kap (ATSF #3751 in LA)
1st Alain Kap (Homecoming) 1st Brian White (Chama NM
‘Getting Ready’)
2nd Chris Green (Misty New
England Morning)
=3rd Brian White (The Climb to Cumbres Pass)
=3rd JanetWhite(It’sColorado – It’s Snowing)
Terry Wynne, Contest Chairman
12 rOUNdHOUSe