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CV49
sets the current trip value. If CV49=0, then the Trip Current jumpers on J6 are enabled. Remember to use either the
Jumpers or the CV settings, not both! The follo wing tri p curr ents c an be se t by pro grammi ng :
Low Power Systems:
For the Digit rax Zephyr, 01 or 02 (ma ybe) a re OK. The NCE Power Cab an d Bachmann EZ should use a value of 01. Both systems
benefit by the activation of the weak system boost jumper, see CV 53. Most 5 amp boos te rs should be happy with 03 or 04. The
default current is 3.81Amps
Caution continuous operations at a value higher than CV49=08, (10.2 amps) without the addition of heat sinks to the output
transistors m ay overheat or damage the PSX’s!
.
CV50 is the block detection source selection. CV50=0 selects block current as the parameter to activate the Block Occupied
(J4-3 and J4-4) output. (See CV54.) CV50=1 will use the photocell to activate the Block Occupied output when the phot cell
is covered. Note that the photocell is self-calibrating and will adjust itself to the ambient light level at the time that the uni t
is tur ne d on. If you ne ed extr a photoce lls, they are made b y S ilonex pa rt number NSL-6112.The CV50 defaul t is 0.
CV51 is not used by the consumer.
CV53 enables or disables the W eak System boost. CV53=0 disables the boost unless the W eak System Boost jumper is
installed. Any other value enables the boost regardless of the presence or absence of a jumper on J7-3 and J7-4. The CV53
default is 0.
CV54 sets current level at which the detector turns on to indicate the block is occupied. Values from 0 to 212. This allows you
to set a level above the leakage current on track to minimize.
CV55
CV62 are not used at present time.
CV63 allows control of the address programming point (same as on the Hare). Setting a value of 42 to CV63 will cause the
circuit break er to s et all CVs and addresses to f actory defaults . The CV63 de fault is 0.
After set ting the CVs tu rn pow er off and put the pro gram jumper back to run position.
Audible Short Indicati on
The two holes inside the circle on the top of the board are for use with an audible short indicating device. It is designed for use
with a Dig ikey part 458-1005. The unit is installed with the (+ ) terminal in the sq uare ho le. See next page.
CV49 Value Trip Current (Amps) Continued
00
3.81 or as Per Jumpers Chart >
CV Value Trip Current
01 1.27 08 10.2
02 2.54 09 11.4
03 3.81 10 12.7
04 5.08 11 14.0
05 6.35 12 15.2
06 7.62 13 16.5
07 8.89 14 17.8
15 19.1
Tri p Cu rr en t J ump er s
(6 pages)
(26 pages)
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