GE 750 Instruction Manual page 181

S6 Monitoring
ANALOG
THRESHOLD 1
NOTE
GE Multilin
connected to the analog input, then enter "0" for
interprets 4 mA as representing 0°C. Intermediate values between the minimum
and maximum are scaled linearly.
c) Analog Threshold
PATH: SETPOINTS S6 MONITORING
[ ] A/I THRESHLD 1 NAME:
ANALOG THRESHLD1
ANALOG THRESHLD 1
MESSAGE
FUNCTION: Disabled
ANALOG THRESHLD 1
MESSAGE
RELAYS (3-7): -----
ANALOG THRESHLD 1
MESSAGE
PICKUP:
ANALOG THRESHLD 1
MESSAGE
DROP OUT RATIO: 5%
ANALOG THRESHLD 1
MESSAGE
PICKUP TYPE: Over
ANALOG THRESHLD 1
MESSAGE
DELAY:
Monitoring of the analog input can be performed by two separate functions, each
operating at different thresholds of analog input current and each having a selection
to trip, alarm, or control. For user flexibility, independent user names can also be
programmed for each Analog Threshold.
Note that connected analog input will still be read and displayed in
if both
ANALOG INPUT
are set to "Disabled".
FUNCTION
The "Blk Thrsh 1" value applies to the
The units for the
ANALOG THRESHLD 1 PICKUP
setpoint.
The
ANALOG THRESHLD 1 PICKUP TYPE
analog input is over or under the programmed threshold.
The value programmed in the
the variation of pickup value, in percentage of pickup, at which the element will
effectively drop out. The drop out ratio is defined as follows:
pickup dropout ratio
Drop Out pickup
= – ---------------------------------------------------------------- -
pickup
Drop Out pickup
= + ---------------------------------------------------------------- -
For example, if the pickup level is 5000 μA, then a
set to "Over" and a
ANALOG THRESHLD 1 DROP OUT RATIO
out of 4500 μA. Conversely, if the
same drop out ratio, the actual drop out will be 5500 μA.
http://www.GEmultilin.com
A/I MIN VALUE
ANALOG INPUT
Range: Any
Range: Disabled, Trip, Alarm, Latched
Range: Any combination of the 3 to 7
Range: 0 to 65535 units in steps of 1
μ
100 A
Range: 2 to 20% in steps of 1
Range: Over, Under
Range: 0 to 60000 s in steps of 1
100 s
ANALOG THRESHLD 1 FUNCTION
ANALOG THRESHLD 2 FUNCTION
setpoint are determined by the
setpoint determines if pickup will occur when the
ANALOG THRESHLD 1 DROP OUT RATIO
×
when PICKUP TYPE is Over
100
× dropout ratio
when PICKUP TYPE is Under
100
ANALOG THRESHLD 1 PICKUP TYPE
set to "10%" results in a drop
ANALOG THRESHLD 1 PICKUP TYPE
750/760
Feeder Management Relay
. The relay then
ANALOG THRESHOLD 1(2)
combination of 18
alphanumeric characters
Alarm, Control, Blk Thrsh 1.
See Note below.
Auxiliary Relays
A2 METERING
and
ANALOG THRESHLD 2
setpoint only.
A/I UNITS
setpoint represents
(EQ 5.21)
is "Under" with the
5–85