Section 4 – Installation Information (Continued)
Telemotive Laser Guard Instruction Manual – October 2009
14
Table 4-2. Laser Diagnostic LED Functions (see Figure 6-13. for LED locations)
.
LED COLOR
FUNCTION
Laser Head
Fault
Red
Monitors the internal circuitry to the Laser Head
Normally OFF.
If a Laser head malfunction is taken place the LED will light. Cycle
power if the light remains on continuously replace head. If the LED is
blinking check the 12 Volts to the head.
Laser Head
Align
Green
Monitors target acquisition.
Normally ON when target is acquired. Flashes when head is working
and target out of range.
If unit is not working and the green light is flashing check connections
to head from control unit and target alignment.
Control Unit
DS1, DS2 and
DS3
Red
Monitors closure of the 1
st
, 2
nd
and 3
rd
Range Point Relays K1, K2 and
K3 respectively.
Normally ON when unit turned ON and out of range points.
The LEDs indicate power to the relay. The relays are normally
energized. As the unit moves closer to the target the ranges point
sequentially drop out thus turning of the LEDs in sequence.
Control Unit
DS4
Red
Monitors engagement of the Fault Relay K4.
Normally ON when receiver turned ON.
The LED will extinguish when an OFF a fault of some type has been
detected, thus tripping the relay. Check LEDS on laser head. DS5,
DS6, DS7, DS8 and DS9 for possible fault conditions.
Control Unit
DS5 and DS6
Red
Monitors the range set points between 1
st
and 2
nd
(2
nd
Sequence LED)
also 2
nd
and 3
rd
(3
rd
Sequence LED) respectively.
Normally OFF.
If the trip points of the three ranges are not set in sequence one or both
of these LEDs will light
Control Unit
DS7
Red
Optical Path Fault Indicator.
Normally OFF.
The LED will go ON for dirty lens, misaligned target or Laser Head.
Clean lens, target and check laser head alignment to target.
Control Unit
E14008-0
Board only
DS8
Green
Monitors regulated 12 VDC.
Normally ON.
DS2 off and DS1 on, check for shorts on regulated output or blown
regulator. or a short on board.
Control Unit
E14008-0
Board only
DS9
Green
Monitors unregulated 12 VDC.
Normally ON.
Check fuse, wiring to unit and AC power to unit.
