Ampcontrol ECD, User Manual, Page: 18 / 29

Ampcontrol CSM Pty Ltd - ABN 35 000 770 141
ECD User Manual
Rev 3 – March 2020
ECDB005R0 13/03/2020 13:12
Page 18 of 21
7.3.3 Short Circuit (Red)
LED state Indication
Off Shunt resistance above 1 .25kΩ
Flashing
Non-latch mode: Shunt resistance is below 1 .25kΩ but for less than trip time setting
Latch mode: ECD has tripped on series resistance and shunt resistance is now below
1 .25kΩ
On Shunt resistance below 1 .25kΩ
7.3.4 Open Circuit (Red)
LED state Indication
Off Series resistance is below trip setting
Flashing
Non-latch mode: Series resistance is above trip setting but for less than trip time setting
Latch mode : ECD has tripped on shunt resistance and series resistance is now above trip
setting
On Series resistance is above trip setting
7.3.5 Start Timed Out (Red)
LED state Indication
Off Start button not pressed
Flashing Start button is pressed
On Start button has timed out (held down for more than 15s)
7.4 Fault Indication
CAUTION!
When an internal fault occurs, all the LEDs will be flashing together and the measurements
can no longer be trusted. A power cycle is needed to reset this state. If this happens
repetitively, please contact Ampcontrol as the unit may be damaged.
The ECD continuously checks the health of its internal circuitry. If these checks fail, the ECD will show an internal fault by
flashing all LEDs and returning the relay contacts to the default position.
7.5 Starting the ECD
When first powered, the ECD will begin checking its internal circuitry as well as the pilot circuit. If no faults are detected within
1.7s the ECD will be ready to start.
•
If remote start mode is not selected the ECD will automatically start, energising its output relay.
•
If remote start mode is selected the ECD will wait for the start button to be pressed.
After a trip has occurred and the fault cleared, the ECD can be reset and re-started depending on the configured modes:
Latching Mode Remote Start
Mode
Starting the ECD
No No Automatic re-start 1s after the fault has been cleared.
No Yes Press the start button a minimum of 1s after the fault has been cleared.
Yes No Automatic re-start immediately after manual reset
Yes Yes Press the start button after manual reset