Digitrax DS74 Посібник - Сторінка 8

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CV11,12,13,14 and CV15 since the 8 bit data number 0-255 in these CV's actu-

ally each control 8 individual OPSW bits.

The DT602 does not indicate to the DS74 when finished programming, so af-

ter you have finished CV changes, best practice is to POWER cycle the DS74.

Alternately, you can WRITE CV7 to 00 to restart that DS74.

7.0 Set up Notes:

In pulse solenoid mode for problem solenoids, try OPSW16=C for higher cur-

rent Capacitive Discharge pulse action.

In all output modes a 300mA /14V supply should suffice.

You can optionally operate DS74's on TKA/TKB terminals with DCC power

only, but control may fail due to track power interruptions from e.g. derail-

ments etc. Also, the total DS74 run and startup current will subtract from

the Booster current available for mobile/locomotive decoders in that Power

District.

For 2-wire pulse solenoids, e.g. a Kato N-crossover, just wire to R/G termi-

nals in the polarity that operates as you need. Do not run more than one

solenoid device per DS74 R/G output pair.

For Slow motion turnouts the total current per output R/G pair should be

less than 70mA. Total 8 Light/Lamp loads should be less than 280mA peak.

Take care not to short any of the DS74; R/G output, P+ and RET leads, or

connect to other voltages like Track power etc. This may cause damage not

covered by Warranty.

If the DS74 flashes the "Ident" pattern of ID & RTS LEDs alternating with

OPS LED for 3 seconds it has detected an overload and has shutdown con-

trol power. Identify the cause of the overload and fix this before resuming

operation.

While a DS74 can operate with just DCC track power on TKA/TKB terminals,

it will not have all features available.

8.0 Warranty & Repair

Digitrax gives a one year Warranty against material and manufacturing defects

on the DS74.

Visit www.digitrax.com for instructions for

returning items for repair. Please return

warranty items directly to Digitrax -

DO NOT return items to place of purchase.

Digitrax, Inc. reserves the right to make changes

in design and specifications, and/or to make addi-

tions or improvements in its products without im-

posing any obligations upon itself to install these

changes, additions or improvements on products

previously manufactured. IPL capable products

like the DS74 & DT602 may be user updated with

the latest IPL files that are available for free on the

product specific information pages of the

www.digitrax.com web site. The newest features

are documented on the product pages of the

website.

Digitrax, Inc. is not responsible for unintentional

errors or omissions in this document.

The DS74 manages SW output voltages and current.

— 8 —

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