Pantron ISG-A1 Series User manual

Operating instructions
Amplifier ISG-A1...
Automaticamplifiers arethe further development of standard amplifiers (manual gain setting). They work without
adjustment and operate by switching on the power supply to the correct range, adjusting the transmit power to
an optimum, and by constantly regulating the effects of disturbances. The switching point is over the entire range
of transmit power and is constant and reproducible.The amplifier works with modulated infrared light, which
enables a high degree of light immunity to ambient light. The circuit is developed to only recognize a particular
frequency and phase. In this way an influence by other infrared light barriers is virtually impossible.
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Assembly and use
1. Choose the sensor heads
Before you turn on the amplifier, select the transmitter and receiver for
your application. This includes choosing the sensor head body style and
cable length or quick disconnect that meets your requirements.
2. Connect wiring to the socket
The amplifier is designed for simple installation . An 11-pin socket must
be used for installation. The wiring diagram is printed on the side label
from the amplifier or see Wiring diagram.
3. Choose the function
The functions are selectable by DIP-switches on the bottom of the
amplifier (except ISG-A11x). The selection of the function is described
on the side label.
4. Check the supply voltage
On the bottom of the amplifier is the type plate. The supply voltage is the
last two or tree numbers of the part number.
For example: ISG-A124/230VAC.
5. Operating procedure
Put the amplifier into the socket and switch the on the power supply. The
device is in the normal mode. From the normal mode, press S1 to enter
the test mode. Pressing S1 for two seconds will cause a reset equivalent
to the power-on-reset.
Note: If the the display H3 lit after switching on the power supply, the
contact between transmitter and receiver is interrupted.
Wiring diagram
ISG-A1x3
ISG-A1x4
except ISG-A113 only ISG-A113
except ISG-A114 only ISG-A114
Safety Instructions
The operation of infrared amplifier ISG... is not
authorized for applications where safety of the
persion depends on the device function.
Dimensions
mm

Operating instructions
Amplifier ISG-A1...
November 1999, subject to change
Display contents:
H1: Switching indicator
H2: Automatic level display
H3: Alarm display
H4 und H5:Transmit frequency display
H6 und H7:Basic transmit level display
P1: Switching on delay
P2: Switching off delay
S1: Test/reset button
Pantron Automation Inc.
P.O. Box 6039
Gastonia, NC 28056
Tel: [phone]
Fax: [phone]
ISG-A11x ISG-A12x ISG-A13x ISG-A14x
Operation mode terminolgy
- Normal operation mode
If visual contact exists between transmitter and
receiver, the LED H2 lights.The ALC is active
and the transmit power will be turned
automatically on the optimum. If the sensor
heads pollute very slow the amplifier raises
the transmit power. At 95 % of the maximum
transmit power, the alarm display H3 lights
and the alarm output is active (24 V DC). If
the infrared beam is interrupted, the display H2
is off and the transmit power level will be
constant until the infrared beam is clear again.
For a description of how the amplifier works, see
table switching logic. The switching on and
off delay is adjustable between 0...10 s with
the potentiometer P1 and P2 (only ISG-A13x).
- Test mode (except ISG-A11x)
In the test mode the amplifiers check the
sensor heads and the signal quality.Toenter
the test mode, press the S1 botton.
a) Signal strength
The display H2 flashes between 1 and 10
times. The flashes are proportional to the
received signal.
b) Error
The display H3 flashes red. Another LED
describes the mistake exactly:
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H1 flashes - no signal
The Sensor heads are OK.The transmit
signal can not be received.
H4 flashes - transmitter fail
like H3: The resistance is too high.
The transmitter isnt con-
nected or the cable is broken.
faster than H3: The resistance is too low. The
transmitter has a short circuit.
H5 flashes - receiver fail
like H3: The resistance is too high.
The receiver isnt connected
or the cable is broken.
faster than H3: The resistance is too low. The
receiver has a short circuit.
- Teach mode (only ISG-A14x)
In Teach mode, the switching points are
programmed by the user for each specific
application. Two teach modes are
possible:
Level1: The object should be recognized
Level2: The object shouldn’t be recognized
Programming execution:
Put the object between the Sensor heads and
push the button S1. The display H2 flashes.
If the teach mode completes successful, the
display H2 lightsconstantly.
- Basic transmit level
The basic transmit level is the minimum trans-
mit power level of an infrared transmitter.
Low1: The transmit power level is always set
to the optimal value for constant high
switching sensitivity.
Low2: The amplifier works like the low 1
basic transmit level but the device is
less sensitive.
High1: The transmit power is always at least
50 % of the maximum power level.
High2: The transmit power is always at least
90 % of the maximum power level.
Function terminolgy
- Switching mode
The switching mode describes the output
behavior on clearance of the infrared beam.
The differences between light and dark
switching modes are shown in the switching
logic table shown above.
- Transmit frequency
The transmit frequency means the modulation
frequency at which the amplifier works. If more
than one sensor head is mounted in close
proximity, the amplifiers must be set to
different frequencies.