AEG ARE I2 Operations Instructions Page 27

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2.5.2.3 OVERVIEW MONITORING
The following table offers an overview of the possible monitoring functions of the thyristor power
controller Thyro-P.
2.5.3 FAST CURRENT MONITORING
(„SHORT CIRCUIT MONITORING“)
Each mains half-wave, the measured actual value of current (per regulated phase) will be compared
to an adjustable limit. If limits are exceeded, a status message will be generated. The message is:
I
2
t current limit is exceeded
The message can be analyzed by the following parameters:
Fast current monitoring L1 [A]
Fast current monitoring L2 [A]
Fast current monitoring L3 [A]
The messages can be analyzed via relay, LED, data logger, pulse switch off (quit the message).
TYPE OF PARAMETER DEFAULT /
MONITORING SETTINGS REMARKS
U
net max
mains overvoltage input in volts Type voltage + 20%
U
net min
mains undervoltage input in volts Type voltage - 20%
I
load max-REL
overcurrent 0-100% REL_ABS = REL
overcurrent relative Re: measured load current UE_S = ON
after each RESET/control lock
I
load max-ABS
overcurrent input in ampere REL_ABS = ABS
absolute UE_S = ON
I
load min-REL
undercurrent 0 to 99% REL_ABS = REL
relative Re: measured load current UN_S = ON
after each RESET/control lock
I
load min-ABS
undercurrent input in ampere REL_ABS = ABS
absolute UN_S = ON
pulse switch pulse switch off ON: pulse switch off after indication is always
off by software fault indication issued
OFF: in case of fault
in case of synchronization
SYT 9, RESET of all Power
Controllers is required
K1 alarm relay K1 ON: relay K1
closed-circuit released in case of fault
OFF: relay K1 the alarm relay switches
pulled-in in case of fault upon activation of
RESET
TAB. 4 OVERVIEW MONITORING
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