Standard 1460, Руководство пользователя

Страница: 15 / 128

1460/61 INSTRUCTION MANUAL
Page 13
e.) Restore power to the 1460 by switching its circuit breaker on at the circuit breaker panel.
i.) The 1460 should show the time and date.
ii.) The LEDs on the main board (and on the 1464(s), if installed) blink at a rate of about once
per second.
2.) Enable the display’s backlight time-out, if necessary.
a.) Determine if the application requires the display’s backlight to turn off after 2 minutes. If not,
SKIP THE REMAINDER OF STEP 2.
The display is equipped with a backlight. The backlight makes the display easier to read, but
causes the 1460 to draw slightly more current than if the backlight were not present. In most
cases, the extra current consumption is not objectionable.
b.) If the extra current consumption of having the backlight on continuously is objectionable, locate
jumper W2 on the CPU board (see diagram on page 15). W2 is provided as a means to enable
a time-out feature for the backlight. As long as W2 is installed, the display’s backlight will be
on continuously. If W2 is removed, the display’s backlight will be turned off most of the time.
If someone operates the 1460, the display’s backlight will automatically turn on. When the user
is finished operating the 1460, the display’s backlight automatically turns off about 2 minutes
later.
c.) Remove power to the 1460 by switching its circuit breaker off at the circuit breaker panel.
d.) Disable/enable the time-out feature of the display’s backlight as required.
i.) To enable the time-out feature, cut jumper W2 of the CPU board.
ii.) If you want the backlight to be on continuously and jumper W2 of the CPU board is already
cut, re-install jumper W2.
e.) Restore power to the 1460 by switching its circuit breaker on at the circuit breaker panel.
i.) The 1460 should show the time and date.
ii.) The LED on the main board (and on the 1464, if installed) blinks at a rate of about once per
second.
3.) Some applications demand a larger display than that of the 1460. For those applications, mount a
secondary clock near the Master Time Programmer.
D.) Connecting Field Devices:
CAUTION: ELECTRIC SHOCK HAZARD! Ensure that NO electrical power is present on any wire
before installation.
1.) Remove power to the 1460 by switching its circuit breaker off at the circuit breaker panel.
2.) Connect appropriate field wiring to the clock circuits of the 1460. See Appendix B for clock circuit
wiring diagrams.
3.) Connect appropriate field wiring to the signal circuits of the 1460. See Appendix C for signal circuit
wiring diagrams.
4.) Restore power to the 1460 by switching its circuit breaker on at the circuit breaker panel.
a.) The 1460 should show the time and date.
b.) The LEDs on the main board (and on the 1464(s), if installed) blink at a rate of about once per
second.
E.) Finishing the Installation:
1.) Close the door of the 1460. Secure it in place with the two #8-32 X 3/8" Truss head screws
provided.
2.) Fill out the “Installer Information” section on page 1 of this manual.
INSTALLATION
firealarmresources.com