Error LED is used for indicating an abnormal status of the relay. This document explains how to find out what the error
message is, what are the error messages and what they mean and also how to
possibly fix them.
If you are able to get a connection to
relay via AQtivate setting tool and load the aqs-configuration file it is
possible to see the IRF (Internal Relay Fault) message in Monitoring à Device Diagnostics à Internal relay fault status.
parameter Internal Relay Fault status displays a number above zero click on the number box and a window showing the
activated errors appears.
Once relay fault status has been activated
the IRF message will persist until it is cleared. Using either AQtivate setting
tool or the relays HMI write Clear to
the parameter Clear Fault status. Please note that you must write it to relay either by having Live Edit mode on or by clicking Commands > Write changed.
If after trying to clear the fault the
error is still present the relay fault still exists. If the fault doesn’t exist
anymore the Internal Relay Fault status will return to zero and Error LED will
hardware setup error
If in this
example case the “BBA” indicates that in addition to the default CPU, VT and CT
card there should be also two digital input cards (BBA) and the last free slot should be empty (BBA). But if we look at the example figure captured from Monitoring à Device Diagnostics we can see that there is actually
an output relay added to the last free slot (Slot F).
settings mode activated
Activating safe settings mode will activate
the Error LED to indicate that the relay is in abnormal state (relay outputs
will not be controlled despite them being programmed to do so). Once the safe
settings mode has been toggled off (Commands à Toggle safe settings mode) the relay
HMI will not display a skull symbol anymore and the IRF message can be cleared.
There are several possible reasons for slot
supervision to occur. Some of the reasons (but not limited to) can be:
1. Current or voltage measurement cards self-supervision voltage is out
of the specified range
2. CPU-cards internal temperature measurement is outside the specified
3. CPU-cards internal +24V voltage measurement is outside the specified
4. The output relays tripping coils self-supervision has detected a
Some of the slot supervision errors are due
to temporary causes like the internal voltage changing due to temporary interference
in the voltage supplied for the relay. Some slot supervision errors are more
To determine what the cause for slot
supervision error could be it is advised to contact us via helpdesk with a ticket and with an aqs-configuration
file loaded from the relay after the IRF has been activated. The log files in
the aqs file can be then examined by Arcteq Relays to possibly determine the
cause for slot supervision error.
Relay Fault messages not mentioned in this
document are used by the developers or the manufacturers of AQ-200 series and
are not a concern of the customer.