Basler BE1-CDS220, Instruction Manual

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14-20 BESTCOMS Software BE1-CDS220
Alarms
BE1-CDS220 relays have 28 programmable alarm points (Figure 14-25). These points are for the
monitored power system, associated equipment, and non-core circuits and functions in the relay. Each of
these alarm points can be programmed to assert the Major, Minor, or Logic Alarm when an alarm point is
activated. To program an alarm point, find the point in the Alarm Priority list and then click on the
appropriate field under the Major, Minor, or Logic Alarm.
Logic settings for the Alarm Reset Logic can be made by clicking on the Logic button and then clicking on
the Reset input. Other logic blocks shown under the BESTlogic panel are shown for reference only. There
is no interaction available.
Figure 14-25. Reporting and Alarms Screen, Alarms Tab
Fault Recording
Logic expressions define the three conditions that determine when a fault has occurred. If a fault is
detected by the relay, the relay records (stores in memory) data about the fault. The three conditions that
determine a fault are Trip, Pick Up, and Logic trigger. To define these conditions, click on Fault
Recording, Logic, and then click on Tripped, Pickup, and Logic in turn and program the inputs that define
each condition. (See Figure 14-26.) You may clear the existing programming by clicking on the Clear
button or clicking on each individual variable.
The fault recording function can record up to 32 oscillographic records in non-volatile memory. Because
there is only a specific amount of memory available, as additional faults are recorded, the oldest records
are overwritten. Each record can record only a limited number of data cycles. If you have less than 32
records, you can have more than 15 cycles of data per record (total of 480 cycles). To select the number
of cycles of data and number of records, click on the Oscillographic Records, Select button, and click on
the number of records that you want to record.
Logic settings for the Target Reset Logic can be made by clicking on the Target Reset Logic button and
then clicking on the Reset input. Other logic blocks shown under BESTlogic on the panel are shown for
reference only. There is no interaction available.
Any protective function, except 62 and 162 that has a trip, will set a target because these functions have
the targets enabled on the Fault Recording tab. If you are using a protective function in a supervisory
capacity and do not want to set a target when the protective function trips, disable that target by clicking
on the specific target. If you want to disable all of the targets for a function such as the 51 time
overcurrent protection function, click on the No 51's button on the left side of the Enabled Targets.