User & Installation manual Troubleshooting
# Problem description Troubleshooting
4
Alarm message::
Digital Input Card Missing
Check the digital inputs using table 5.2
DIGITAL INPUT TEST
If there is a problem with a digital input card,
replace it (see also
Pappendix > Plug &
Play .
5
There is a short circuit and the controller
doesn’t recognize which output is creating it.
This will usually occur more then once, an event
“Short Circ. Relay # “ (with no relay number)
should appear in the table
4.12 SYSTEM LOG.
This can occur in two different cases:
There are no short circuits in the
system - the short circuit threshold
value is too. In this case raise the
shrt circuit threshold value (table
3.3 ALARM DEFINITION).
A short circuit occurs in a device
that is connected in a distance – the
addition to the system’s electric
current load (A/D) is too small for
the system to detect exactly which
output is resposible. In this case the
short circuit threshold value can be
lowered so the system is more
sensitive.
6
The controller detects a short circuit but it does
not point to the correct device.
This can occur in two different cases:
There are no short circuits in the
system - the short circuit threshold
value is too. In this case raise the
shrt circuit threshold value (table
3.3 ALARM DEFINITION).
A short circuit occurs in a device
that is connected in a distance – the
addition to the system’s electric
current load (A/D) equals that of a
device near the system and the
system cannot identify which is the
short circuited device. In this case
operate the devices manually and
detect the defected device using
table
5.1 RELAYS.
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