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5
AES Operation
5.1 Alarms
Mains fault (normal source)
: signalled locally by a yellow LED and remotely by dry contact with delay
(failsafe).
If
the mains is not present or < 195,5 Vac.
If
the
mains fuse is blown or not present.
If
the product is out of service.
Battery fault (emergency power)
: signalled locally by a yellow LED and remotely by dry contact with delay
(failsafe).
If
the battery is not present:
The battery test is performed in the following manner: every 30 seconds for the first 20
minutes after commissioning: every 15 minutes after the first 20 minutes. If a fault is detected,
the test is performed every 30 seconds up to 20 minutes after the fault disappears.
If
the internal impedance is too high (test every 4 hours maximum on a charged battery).
The impedance limit values are:
24V
48V
164m
Ω
+/-10%
656m
Ω
+/-10%
If
the battery voltage < 1.75 V/cell
±3 %.
Output 1 voltage presence :
signalled locally by a green LED
Output 2 voltage presence :
signalled locally by a green LED
Voltage presence on output 1 and 2 is signalled by a dry contact with delay (failsafe).
5.2 Summary of available equipment
Temperature compensation:
A battery voltage compensation system maintains the charge characteristics within the limits specified
by the battery manufacturer across the entire operational temperature range.
Battery low voltage cut-out:
The cut-out threshold is 1.75 V/cell
±3 %.
The element causing the cut-out will be in the + position.
