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5
Diagnostics & Troubleshooting
LED Indicators
5.1
The control provides four (4) LED indicators shown as item 5
in Figure 1. These LEDs are often useful in diagnosing various
wiring and connection problems. If power is connected there
will always be at least one LED illuminated or flashing. When
no LED is illuminated, there is no power.
Fuse LED (Red)
5.1.1
CAUTION: The control's internal fuse will not blow under
normal operating circumstances.
connections to assure that there are no short circuits.
This LED is off under normal circumstances. It illuminates
constantly if the internal 15 amp internal fuse is blown and
power is applied with the proper polarity. The 15 amp fuse
on the board is not user-accessible. If the blown fuse LED is
illuminated, return the board to your distributor or supplier
for analysis or repair.
NOTE: The control's on-board fuse is NOT replaceable.
Fault LED (Red)
5.1.2
This LED is off under normal circumstances. If a problem is
detected, it provides one of the following five signals:
§
One (1) flash in 4 seconds: The board has a hardware
problem. Return it to your supplier.
Two (2) flashes in 4 seconds: The input voltage is too high.
§
Three (3) flashes in 4 seconds: The input voltage is too low.
§
Four (4) flashes in 4 seconds: There is a problem with the
§
motor cable or connection. Check to see that the cable is
not damaged and that all of the wires are secure.
§
Five (5) flashes in 4 seconds: control over temperature.
Six (6) flashes in 4 seconds: Extreme over current.
§
Constantly ON: The motor is stalled or the sensor is
§
continuously blocked. Check for mechanical obstructions.
Motor LED (Amber)
5.1.3
Constantly ON: Motor current is at the maximum allowed and is
§
being electronically limited. Check for mechanical obstructions.
Flickering: If the motor starts under significant load, the current
§
may be limited briefly causing the LED to flicker. If the LED
flickers constantly, this is an indication that the motor is
operating at its upper limit and may never reach the full speed.
This is not a cause for concern and no corrective action is
required.
Power LED (Green)
5.1.4
Constantly ON: Power is properly applied as long as the fuse
is not blown.
5.2
Inspect all wiring
5.3
5.4
To request the latest revision to our User Manual, visit our
website at www.automationcontrolsgroup.com.
For additional assistance, please contact
our ACG Service line at (619) 677-6530
or email us at
Firmware Version Display
Three (3) of the feedback LEDs are used to communicate the
firmware revision of the control assembly during the start-up
sequence.
Each time that power is applied to the board, the green
(power) and red (fault) LEDs will turn on immediately. After
1.0 second the amber LED will flash on for 0.75 seconds
followed by an off period.
An off period of 1.5 seconds represents a decimal point
separating major revisions from minor revisions. An example
is shown below.
Figure 2: Firmware Version Display Example
This example sequence represents firmware revision 1.2.
When the red fault LED turns off, the startup sequence has
ended and normal operation begins.
RJ25, 6-Wire, Modular Cable Orientation, L<10Ft
Additional Assistance
ACGservice@automationcontrolsgroup.com
ZoneLogix Plus ACG P/N 301208 July 23, 2021 Page 10
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