NAPCO NP-PTM Instructions

R
333 Bayview Avenue
Amityville, New York 11701
For Sales and Repairs, (800) 645-9445
For Technical Service, (800) 645-9440
© NAPCO 2005

DESCRIPTION

The NP-PTM programmable timer is appropriate for various
functions that require a timed operation, for example, Siren/
Bell Cut Off Modules, Dialer Delay, Access Control Applica-
tions, Guard Tour Supervisory Timers, etc. Some optional
functions include: One Shot, Delayed Release, Delayed Op-
erate, Delayed Pulse and Pulser/Flasher. Includes a feature
that provides a momentary relay activation at the end of a de-
sired timing cycle, eliminating the need for using two (2) tim-
ers to achieve this function.
(interrupt) the timing cycle and reset the timer if desired.

FEATURES

•
12 or 24VDC operation is selectable.
•
Quick and accurate time range adjustment from 1 sec. to
60 min.
•
LED indicates relay is energized.
•
Current Draw: Stand-by 3mA, Relay Energized 40mA.
•
Triggers via positive DC (+) voltage, dry contact closure, or
removal of contact closure.
•
Form "C" relay contacts are 8 amps at 120VAC/28VDC.
•
Selectable relay activation at the start or end of the timing
cycle.
•
One (1) second momentary relay activation at the end of
the timing cycle (eliminates the need to use two (2) timers
for this function).
•
Built-in reset feature which cancels timing cycle.
•
Repeat (pulser/flasher) mode.
•
Snap Trac compatible.
•
DIN Rail Mount version available.
Board dimensions: 76.3mm L x 63.7mm W x 25.0mm H

INSTALLATION INSTRUCTIONS

1. Mount NP-PTM (Multi-Purpose Timer) in desired location or
into an enclosure.
2. Set Dip Switch 3 for proper DC Input Voltage- 12VDC switch
ON, 24VDC switch OFF
PROGRAMMABLE TIMER
Another feature cancels
NP-PTM
3. Refer to Dip Switch 1 Selection and Dip Switch 2 Selec-
tion Tables for desired functions (e.g.: Timing, Trigger,
Pulse)
4. Refer to the Terminal Identification Table and Typical Ap-
plications (see fig. 8 on reverse) for desired wiring connec-
tions.
Note: It is good operating practice to measure and verify DC
input voltage before powering device to ensure proper op-
eration.
Note: When triggering via a N.O. (normally open), momen-
tary or maintained trigger, connect the dry contact trigger to
Pos (+) and TRG terminals.
When triggering via a N.C. (normally closed), momentary or
maintained trigger, connect the trigger to Neg. (-) and TRG
terminals and install a 1K (1,000 ohm) resistor between the
Pos (+) and TRG terminals (fig. 8).

DIP SWITCH 1 SELECTION TABLE

DIP# OFF
Relay energizes at start of
1
timing cycle.*
1-60 minutes timing range.
2
(adjust trimpot)
24VDC operating voltage.
3
4 Timing begins immediately
upon trigger input.
* When relay energizes (LED is on) [N.O. & C] switch from open to close
and [N.C. & C] switch from close to open.

DIP SWITCH 2 SELECTION TABLE

DIP#
The NP-PTM will go through an initial timing cycle when first
1
powered up unless DIP 1 is OFF.
If DIP 1 is OFF, timing can only be initiated via TRG terminal
2 DIP 2 is OFF puts timer in delayed output mode. Relay will pulse
for 1 second at
the end of a preset timing cycle. *Dip Switch 1 must be ON for
this function.
3 DIP 3 is OFF selects the pulser/flasher mode. Relay will flip ON
and OFF
continuously in equally set timed intervals when timer is powered
up.
NC
4

TERMINAL IDENTIFICATION

Terminal
Legend
TRG Applying a positive voltage will activate timing cycle.
Trigger voltage range: 7-12VDC at 12 volt setting, 15-24VDC
at 24 volt setting.
-, + Connect 12 or 24VDC filtered and regulated voltage. Refer to
Dip Switch 1 Selection Table for voltage setting.
N.O., C, Dry form "C" relay contacts are rated 8 amps at
N.C. 120VAC/28VDC.
WI1343A 12/05
ON
Relay energizes at the end of
timing cycle.*
1-60 seconds timing range.
(adjust trimpot)
12VDC operating voltage.
Timing starts after removal of
trigger input.
Function/Description
Function/Description