CALIBRATION AND CHECKOUT
SIGNAL INPUTS
See figures E1, E2, E3, and E4 for wiring details. The AUD accepts pulsed relay contact inputs, pulsed DC,
or pulsed AC voltage inputs (see E5 for Triac jumper position).
DIP SWITCH PROGRAMMING
1. Select the rate of change by setting the DIP switch as shown in Figure A. The rate of change is the time
it takes for the analog output to go from minimum to maximum. Rate of change selections are as follows:
Version 1
: 5, 15, 30 and 90 seconds.
Version 2 & 3:
45, 60, 120, and 240 seconds (Version 3 differs in that it will reset to maximum on
start-up, or if both inputs pulse 3.5 seconds).
Version 4:
5 and 360 seconds. Changing the timing range with power on will result in reset to
minimum on Versions 1, 2 and 4.
Version 5:
60, 75, 120, and 150 seconds.
Verify that the chip numbers on your AUD corresponds to version ordered - See
Table 1.
2. Select either current or voltage output with the two switches shown in Figure B (on p. 4). NEVER have
both switches on or off at the same time while powered, or chip failure may occur.
3. Select offset of 1 volt/4 mA or adjustable offset by switch 6 as shown in Figure C. With the adjustable
offset setting, you can adjust the “OFFSET” trim pot as desired. For offset higher than 5 volts contact
customer service.
4. Select the desired span by setting the three switches as shown in Figure D. If you chose an adjustable
span, you can adjust the “SPAN” trim pot, as necessary. After all connections have been made, activate the
power source. The “POWER” LED should light. The “UP” and “DOWN” LED’s will light when the AUD is
receiving input signals.
ADJUSTABLE OFFSET AND SPAN
If you do not wish to use any of the preset selections and
desire to set your own minimum and maximum output,
you must make potentiometer adjustments to the AUD. The OFFSET DIP switch
(shown in Figure C) should be set for adjustable offset and the SPAN DIP switches (shown in Figure D)
should be set for the span desired. The minimum output signal will be equal to the offset. The maximum
output signal will be equal to the offset plus the span.
Examples:
If the Span is set at 4 VDC and the Offset is set at 0 VDC
Minimum Output will be 0 VDC, Maximum Output will be 4 VDC
Or… If the Span is set at 16 mA and the Offset is set at 4 mA
Minimum Output will be 4 mA, Maximum Output will be 20 mA
To Set an Adjustable Offset
:
Turn power OFF, set DIP switch 6 for adjustable offset (see
Figure 3
), connect multimeter to the output and
turn the power on.
Place Man/Auto jumper in the Manual position.
Turn the Manual Override potentiometer counter clockwise until it stops. It is a 3/4 turn pot.
Offset Pot turns counter clockwise to Decrease and clockwise to Increase.
Turn the Offset potentiometer until the desired minimum output is read on meter.
To Set an Adjustable Span:
Turn the power OFF, set DIP switches 3,4 and 5 for one of the 3 desired adjustable ranges (see
Figure 3
).
Connect multimeter to the output and turn power ON.
Place (or leave) the Man/Auto jumper in the manual position.
Turn the override potentiometer clockwise until it stops.
Turn the Span potentiometer until the desired maximum output is read on meter (turn counter clockwise
to increase and clockwise to decrease).
Check full range and repeat if needed. (Note: If powered when making DIP switch settings, power must be
reset to allow DIP switch settings to be recognized.
When power is first applied or restored after power interruption, the AUD automatically resets to the
minimum output signal as defined by the output DIP switch settings or the adjusted minimum.
Triac input – Follow wiring example in
Figure 2
(p. 2).
Manual Override Potentiometer – If you want to manually increase and decrease the output within the
selected signal span (to test the hookup to the actuator), place Jumper J2 in MAN (manual) position, and
turn the manual potentiometer. Be sure to return Jumper J2 to AUTO position after testing.
TROUBLE SHOOTING AND TESTING
1. Apply 24 VAC or 24 VDC to “PWR” terminal, confirm power LED is on and measure voltage to confirm
proper voltage.
2. Check the DIP settings. Depressing the switch closest to the MAN/AUTO pot selects the ON position. You
must reset power if switch changes are made with power on or they will not be recognized.
3. Testing the output. Connect power. Place MAN/AUTO jumper to Manual.
Voltage Out:
Confirm DIP switch setting for “Voltage Out” (See (see
Figure 3
(p. 4))) Should be 7 OFF & 8 ON. With
meter only connected to the SIG and PWR (-), turn the manual pot full left and then full right. The output
should vary from 0 to 100% of calibrated or jumper selected range.
If no change is seen, contact ACI Tech Support at (888) 967-5224.
If yes, connect load/device and meter to SIG and PWR (-) terminals. Turn override pot and measure
voltage. Do the readings match the no load test?
If no, check load impedance mismatch or a possible ground loop problem and/or call ACI Tech Support
at (888) 967-5224.
If yes, voltage output is functioning properly.
Current Out:
Confirm DIP Switch setting for “Current Out” (See (see
Figure 3
(p. 4)). With meter only connected to the
Automation Components, Inc.
2305 Pleasant View Road | Middleton, WI 53562
Phone:
1-888-967-5224 |
Website:
workaci.com
Page 6
Version: 7.0
I0000598
SIG and PWR(-) turn the manual pot full left and then full right. The output should vary from 0 to 100%
of the calibrated or jumper selected range. If not, measure the voltages and turn the Manual override
pot clockwise. Is voltage present? If no, contact ACI Tech Support at (888) 967-5224.
A voltage between 15-39 VDC indicates the AUD is attempting to generate the desired mA. Load or
meter may have an open, blown fuse or connected improperly. A 250 or 500 ohm resistor will also work
to test the output. Connect the resistor to the SIG and PWR(-) terminal. With 250 ohms on the output
the voltage from one side of the resistor to the other will be 1VDC @ 4mA and 5VDC @ 20mA. Using the
500 ohm will give 2 VDC @ 4mA and 10VDC @ 20mA. Does the unit function as stated above?
If no, contact ACI Tech Support at (888) 967-5224.
If yes, current output is functioning properly.
4. Testing the input – To manually test the input.
Apply 24 VAC or 24 VDC to the PWR terminal. Connect your meter to the SIG and PWR(-) terminal. Set
meter to match output DIP switch settings. Place MAN/AUTO jumper to AUTO. Connect a jumper wire
from UP + to the PWR(+). Connect a jumper wire to the PWR(-) only. You are now ready to simulate an
input pulse signal.
For testing purposes, select the 15 second range (DIP switch 1 ON, DIP switch 2 OFF). Be sure to reset
power to allow the AUD to recognize new settings.
Take the free end of the jumper wire from “PWR”(-) and connect by holding wire to the “UP”(-) terminal.
Verify the pulse LED indication. Read output. Has the output changed? The output should be increasing
and stop when maximum span is reached.
Placing the wires on the DWN + and – terminals should decrease the output signal. If no, change the
TRC/NRM to the opposite setting and repeat test. Has the output changed?
If no, contact ACI Tech Support at (888) 967-5224.
If yes, unit is functioning properly.
