Analogue Outputs - Camille Bauer EURAX DME 424 Betriebsanleitung

Symbols Meaning
PF Active power factor cosϕ = P/S
PF1 Active power factor phase 1
PF2 Active power factor phase 2
PF3 Active power factor phase 3
QF Reactive power factor sin ϕ = Q/S
QF1 Reactive power factor phase 1
QF2 Reactive power factor phase 2
QF3 Reactive power factor phase 3
LF Power factor of the system
LF = sgnQ · (1 – PF)
LF1 Power factor phase 1
sgnQ1 · (1 – PF1)
LF2 Power factor phase 2
sgnQ2 · (1 – PF2)
LF3 Power factor phase 3
sgnQ3 · (1 – PF3)
c Factor for the intrinsic error
R Output load
Rn Rated burden
H Power supply
Hn Rated value of the power supply
CT c.t. ratio
VT v.t. ratio
Input
Waveform: Sinusoidal
Nominal frequency: Acc. to type label
Consumption
(at external
power supply): Voltage circuit: U
Current circuit: ≤ I
Continuous thermal ratings of inputs
Current circuit
10 A
Voltage circuit 480 V single-phase AC system
831 V three-phase system
34
P1/S1
P2/S2
P3/S3
Q1/S1
Q2/S2
Q3/S3
/ 400 kΩ
2
· 0.01 Ω
2
400 V
single-phase
AC system
693 V
three-phase system
Short-time thermal rating of inputs
Input Number
variable of inputs
Current 400 V single-phase AC system
circuit
693 V three-phase system
100 A 5
250 A 1
Voltage circuit 1 A, 2 A, 5 A
Single-
phase
AC system
600 V
H : 1.5 Ur 10
intern
Three-phase
system
1040 V
H : 1.5 Ur 10
intern

Analogue outputs

For the outputs A, B, C and D:
Output Impressed
variable Y DC current
Full scale Y2 see "Ordering
information"
Limits of
output signal
for input
overload
and/or R = 0 1.25 · Y2
R→ ∞ 30 V
Rated useful
range of output 7.5 V
0 ≤
load
Y2
AC component
of output signal ≤ 0.005 · Y2
(peak-to-peak)
The outputs A, B, C and D may be either short or open-
circuited. They are electrically insulated from each other and
from all other circuits (floating).
Digital outputs, pulse outputs, limit outputs
The digital outputs conform to DIN 43 864. The pulse width
can be neither programmed nor is there a hardware set-
ting.
Type of contact: Open Collector
Number of pulses: Programmable
Duration Interval
of between two
overloads overloads
3 s 5 min.
1 s 1 hour
10 s 10 s
10 s 10 s
Impressed
DC voltage
see "Ordering
information"
40 mA
1.25 · Y2
15 V Y2 Y2
≤ ≤ ≤ ∞
Y2 2 mA 1 mA
≤ 0.005 · Y2