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ZS025A GWR/BR COLLETT Steam locomotive with brakes by Tony Molyneux
F0 Lights if Fitted
F1 Sound on/off
F2 Brake Key (see text)
F3 Whistle
F4 Whistle
F5 Light loading
F6 Coal shovelling + Aux 1 green wire for flickering firebox glow
F7 Injector
F8 Blower
F9 Flange noise
F10 Steam Lock
F11 Wheelslip
F12 Safety valves lifting
F13 Buffer up
F14 Coupling
F15 Drain cocks
F16 Water filling
F17 Smoke if fitted Aux 2
F18 Bell
F19 Bell
F20 Guard’s whistle
F21 Pump
F27 Vol down
F28 Vol up
CV4 set to 100 for coasting use F2 to slow loco with the brakes
F2 Brake key
When closing the throttle the loco will coast and decelerate very slowly. To slow the train press F2 and the brakes actually work speeding up how fast the loco slows down just like a real brake control in the cab.
F5 Light loading
This reduces the amount of momentum and inertia that is programmed in to the decoder as a light loco is much quicker to accelerate and brake.
F10 Steam lock
Press F10 and this locks the loco at the speed it is presently travelling at allowing you to increase or decrease the intensity of the chuff or even coast by raising or lowering the throttle. To regain speed control unlatch F10.
CV chart.
CV
Designation
Range
Default
Description
1
Short Address
1 - 127
3
Active when Bit 5 in CV29 = 0
2
Start Volts
1 - 255
1
Value at speed step 1. Only applies if Bit 4 of CV29 = 0 otherwise the individual speed table is active.
3
Acceleration
0 - 255
30
Multiplied by 0.9 equals time in seconds from stop to full speed.
Influenced by sound project.
4
Braking
0 - 255
100
Multiplied by 0.9 equals time in seconds from full speed to stop.
Influenced by sound project.
5
Top Volts
0 - 255
1
Level applied to the highest speed step in use. Value 0 and 1 = max. Bit 4 in CV # 29 has to be 0 or the individual speed table is active.
6
Mid Volts
1
A useful value for CV 6 is ¼ to ½ of the value in CV5
1
Default = about 1/3 of top speed
Entered value = internal speed step assigned to the cab’s centre speed step (=step 7,14 or 63 according to the number of speed steps selected: 14, 28 or 128)
Bit 4 in CV # 29 has to be 0 or the individual speed table is active
8
Manufacturer ID
and factory reset
Read Only
145
= ZIMO
Setting CV 8 to a value of 8 or 0 will return all CVs to the manufacturer’s default settings. Address = 3
17 & 18
Long Address
0001-9999
0
The long 5-digit primary address (greater than 127). This address is only active when Bit 5 in CV 29 is on. Otherwise the address entered in CV 1 is active (127 or lower).
The idea of Digitrains was conceived over the dinner table and grew very slowly as doubts calmed missionary zeal. We finally took the plunge in January 2005 and are fortunate to be dealers for some of the best and most user friendly DCC equipment available.