Basler Electric DECS-250N User Manual
Page 251
9440500990 Rev D
235
DECS-250N
Modbus™ Communication
Name
Register
Type
Byte
s
R/W
Unit
Range
Annunciation Status Bit Flags 1
47303
Uint16
2
R
n/a
(0 = clear, 1 = annunciation
present): b0 = field overvoltage,
b1 = field overcurrent, b2 = gen.
undervoltage, b3 = gen.
overvoltage, b4 =
underfrequency, b5 = in OEL, b6
= in UEL, b7 = in FCR,
b8 = loss of sensing voltage, b9 =
setpoint at lower limit, b10 =
setpoint at upper limit, b11 = gen.
failed to build up, b12 = gen.
below 10Hz,
b13 = unassigned, b14 = exciter
diode open, b15 = exciter diode
shorted
Reserved 3
47304
Float
4
R
n/a
n/a
Protection Status Bit Flags 2
47306
Uint16
2
R
n/a
(0 = clear, 1 = condition present)
b0 = loss of field, b1 = in SCL, b2
– b15 are unassigned
Annunciation Status Bit Flags 2
47307
Uint16
2
R
n/a
(0 = clear, 1 = condition present)
b0 = loss of field, b1 = in SCL, b2
– b15 are unassigned
Reserved 4
47308-
375
C2 Filler
136
n/a
n/a
n/a
Reserved 5
47376-
499
C3 Filler
248
n/a
n/a
n/a
Auxiliary Input Function
47500
Uint16
2
n/a
n/a
DECS Input=0 PSS Test Input=1
Limiter Selection=2
Generator Rated Frequency
47501
Uint32
4
R W
n/a
50 Hz=50 60 Hz=60
Generator PT Primary Voltage Rating
47503
Float
4
R W
n/a
1 - 500000
Generator PT Secondary Voltage Rating
47505
Float
4
R W
n/a
1 - 600
Generator CT Primary Current Rating
47507
Float
4
R W
n/a
1 - 99999
Generator CT Secondary Current Rating
47509
Int32
4
R W
n/a
1=1 5=5
Not used in DECS-250N
47511
Float
4
R W
n/a
Reserved Float 1
47513
Float
4
R
n/a
0 - 10000
Bus Sensing PT Primary Rating
47515
Float
4
R W
n/a
1 - 500000
Bus Sensing PT Secondary Rating
47517
Float
4
R W
n/a
1 - 600
Reserved 6
47519
Float
4
R
n/a
n/a
Reserved 7
47521
Float
4
R
n/a
n/a
Generator Rated Voltage
47523
Float
4
R W
Volt
1 - 500000
Generator Rated Current
47525
Float
4
R
Amp
0 – 180000
Generator Rated Field Voltage
47527
Float
4
R W
Volt
1 – 250 if the unit is a DECS-
250N with power configuration
style #3.
Generator Rated Field Current
47529
Float
4
R W
Amp
1 – 20
Nominal Bus Voltage
47531
Float
4
R W
Volt
1 - 500000
Auxiliary Input Gain for AVR Mode
47533
Float
4
R W
n/a
-99 – 99
Time Delay Before Autotracking
47535
Float
4
R W
Second
0 – 8
Traverse Rate of Autotracking
47537
Float
4
R W
Second
1 – 80
Not used in DECS-250N
47539
Float
4
R W
n/a
Gain for Cross Current Compensation
47541
Float
4
R W
Percent
-30 – 30
Sensing Mode
47543
Uint16
2
R W
1-phase (A-C)=0 3-phase=1
Auxiliary Input Summing Mode
47544
Uint16
2
R W
Voltage=0 Var=1
Not used in DECS-250N
47545
Uint16
2
R
n/a
n/a
Reserved 8
47546
Uint16
2
R
n/a
n/a
Auxiliary Input Mode
47547
Uint16
2
R W
Voltage=0 Current=1
For Future Use
47548
Uint16
2
R
n/a
n/a
External Tracking Time Delay
47549
Float
4
R W
Second
0 - 8
External Tracking Traverse Rate
47551
Float
4
R W
Second
1 – 80