ON/OFF and LOW POWER control.
WIRING DIAGRAM 1
FLASH PATTERN SELECTION
Momentarily connect YELLOW wire to + l2/24V to advance to
the next flash pattern in the list below. (Or use pushbutton if you
installed one). The flash pattern loops back to pattern #1 when it
is advanced past # 15. If you are unsure of which flash pattern is
currently selected, connect and hold YELLOW to + 12/24V for 3
seconds to reset to flash pattern #1.
~
f-
LOW
':'J
,
POWER
~
:J; GREEN. BLUE
CONTROL HARNESS
Touch
YELLOW
to the terminal
of the
RED
wire
to select
flash
pattern.
Connect
YELLOW
to GROUND
to ensure
that
flash
pattern
will
never
change.
:2JJ
GREEN, BLUE
CONTROL HARNESS
ON/OFF
SWITCH
DIAGNOSTIC INDICATORS
The MODEL 21.7662 is equipped with two
diagnostic indicators located on the PC board
directly below the EZ PANEL connector.
If the MODEL
21.7662
has stoppedfunctioning
check the diagnostic lights and follow the
INoDY6~~6R
IN6~6~;OR
instructions below.
I .
I OUTPUTINDICATOR(RED)
NORMAL: The OUTPUT INDICATOR will light when ANY strobe
head fires. It will blink inexact time with the flash pattern. When the
MODEL 21.7662 is turned off the indicator may dimly blink for a few
seconds. This indicates that the power supply is discharging itself.
-L
0
o--e.
PATTERN
SELECT
PROBLEM: Ifthe MODEL 21.7662 is activated but none of the strobe
heads are firing, check the OUTPUT INDICATOR. If the light is
blinking or on steady then it indicates that there is a short circuit on one
or more of the strobe head outputs.
To find the short circuit, unplug all strobe head cables from the
MODEL 21.7662. Test one cablelhead at a time until the problem is
found. Do not test with more than one cable/head installed.
The problem is typically at the strobe head end of the cable. If there is a
blue/green or black colored corrosion on the connector it is shorted.
Also checkfor a head or cable with a reverse wired connector.
WIRING
DIAGRAM
3
SELECTIVE HEAD SWITCHING
and PATTERN SELECT.
High Power mode.
YELLOW
CONTROL HARNESS
UJ
::>
-'
[!)
I INPUT INDICATOR
(GREEN)
NORMAL: The INPUT INDICATOR should NOT be lit during
normal operation. It may blink for a second when power is first applied
to the MODEL 21.7662, or when power is removed but this does not
indicate a problem with the power supply.
OUTLETS
1-2
z
UJ
UJ
a::
t:>
-L
0 o--e
PATTERN
SELECT
PROBLEM: If the MODEL 21.7662 is activated but none of the strobe
heads are firing, check the INPUT INDICATOR. If it is ON then it
indicates that the input voltage is too low (below IOY).
There may be a bad connection to the battery or ground.
If the MODEL 21.7662 is functioning but the INPUT INDICATOR is
blinking or lit it indicates that the voltage is too low and the power
supply is not operating at full power. Check for bad connections and be
sure the proper size wire was used for the + and
- connections.
!8:1
BLOWN FUSE
The MODEL 21.7662 will blow a fuse if the input voltage is reversed.
If this happens, fIrst locate the wiring fault, then replace the fuse with
one ofthe same rating. If the fuse continues to blow it indicates an
internal fault. Do not use a fuse larger than 15A!
EZ PANEL CONNECTOR
.
The EZ PANEL connector is only for use with the EZ
PANEL series of control panels.
.
Do not connect both the EZ PANEL cable and the
standard control wires at the same time!
.
Do not connect any other devices to the EZ PANEL
connector as permanent damage may result.
.
Use only approved cables with the EZ PANEL.
