FORM DD-40NTV II 12-09
2
DD-40NTV DIGITAL ANNUNCIATOR
NOTE: If possible, keep the
original shipping container.
If future transportation or
storage of the annunciator
is necessary, this container
will provide the optimum
protection.
2.0 MOUNTING
2.1 ANNUNCIATOR UNIT:
Using four #10 screws, mount the Annunciator Unit inside a control
panel or to a suitable at surface so that the display is at a conve-
nient viewing height. A drilling template is provided. The annun-
ciator unit box must be grounded.
2.2 691200-3 POWER SUPPLY:
The Power Supply mounts directly to the back of the Annunciator
Unit using two 8-32 x 5/16" length screws provided.
3.0 WIRING (FIGS. 7 – 20)
3.1 The annunciator unit plugs into the power supply through a DB-9
connector.
3.2 The sensor leads connect to the removable terminal strips on the
back of the annunciator. These terminal strips match those used
with the earlier DD-40NT/DD-20NT systems.
3.3 At the terminal strip of the Annunciator unit, strip the insulation
back 3/8"; twist the exposed wires tightly together. Insert the ex-
posed wire end completely into the terminal strip and securely
tighten the clamping screw. It is suggested that wire 18 AWG (max.)
to 24 AWG (min.) be used for the connections directly to the an-
nunciator terminal strip connector.
3.4 Wires running to the various sensors should be in good condition
or replaced with new wiring. Terminations to the main panel ter-
minal strip (if used) should be made with a suitable terminal and
crimping tool or by soldering. There is no requirement for explo-
sion-proof conduit or Class I enclosures; however, suitable physical
protection should be provided.
NOTE: Avoid mounting with
the LCD display facing direct
sunlight.
The display temperature
range is -40°F. to +175°F.
WARNING: REGARDING OLDER ALTRONIC OVERSPEED DEVICES
IF RETROFITTING INTO AN OLDER PANEL, THE DD-40NTV ANNUNCIATOR WILL NOT
RECOGNIZE THE OUTPUT SIGNAL FROM OLDER ALTRONIC OVERSPEED DEVICES:
DTO-1000, DTO-1010, DTO-2200, DTO-3200
DTHO-2100, DO-3300, PTO-2100, PTHO-2100
THESE DEVICES WILL NOT WORK FOR OVERSPEED PROTECTION IN CONJUNCTION
WITH A DD-40NTV ANNUNCIATOR. FOR SUCH PROTECTION, USE THE OVERSPEED
FEATURE BUILT INTO THE DD-40NTV ANNUNCIATOR (REFER TO SECTION 6.3).
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