29
System response
Accuracy class:
(the reference value is the full-scale
value Y2)
Measured
variable
Condition
Accuracy
class
1)
System:
Active, reactive
and apparent
power
0.5 ≤ X2/Sr ≤ 1.5
0.3 ≤ X2/Sr < 0.5
0.5 c
1.0 c
Phase:
Active, reactive
and apparent
power
0.167 ≤ X2/Sr ≤ 0.5
0.1 ≤ X2/Sr < 0.167
0.5 c
1.0 c
Power factor,
active power and
reactive power
0.5Sr ≤ S ≤ 1.5 Sr,
(X2 - X0) = 2
0.5 c
0.5Sr ≤ S ≤ 1.5 Sr,
1 ≤ (X2 - X0) < 2
1.0 c
0.5Sr ≤ S ≤ 1.5 Sr,
0.5 ≤ (X2 - X0) < 1
2.0 c
0.1Sr ≤ S < 0.5Sr,
(X2 - X0) = 2
1.0 c
0.1Sr ≤ S < 0.5Sr,
1 ≤ (X2 - X0) < 2
2.0 c
0.1Sr ≤ S < 0.5Sr,
0.5 ≤ (X2 - X0) < 1
4.0 c
AC voltage
0.1 Ur ≤ U ≤ 1.2 Ur
0.2 c
AC current/
current averages
0.1 Ir ≤ I ≤ 1.2 Ir
0.2 c
System frequency
0.1 Ur ≤ U ≤ 1.2 Ur
resp.
0.1 Ir ≤ I ≤ 1.2 Ir
0.15 + 0.03 c
1)
Basic accuracy 1.0 c for applications with phase-shift
Duration of the
measurement cycle:
Approx. 0.6 to 1.6 s at 50 Hz,
depending on measured variable
and programming
Response time:
1 … 2 times the measurement
cycle
Factor c (the highest value applies):
Linear characteristic:
c =
1 -
Y0
or c = 1
Y2
1 -
X0
X2
Bent characteristic:
X0 ≤ X ≤ X1
c =
Y1 - Y0
·
X2
or c = 1
X1 - X0
Y2
X1 < X ≤ X2
c =
1 -
Y1
or c = 1
Y2
1 -
X1
X2
Y
X
Limit of the
output range
X0/Y0
X2/Y2
Y
X
Limit of the
output range
X0/Y0
X2/Y2
X1/Y1
Fig. 4. Examples of settings
with bent characteristic.
Fig. 3. Examples of settings
with linear characteristic.
(System response inversely confi gurable)
Infl uencing quantities and permissible variations
Acc. to IEC 688
Safety
Protection class:
II (protection isolated,
IEC
1010)
Enclosure protection:
IP 40, housing
(test wire, IEC 529)
IP 20, terminals
(test
fi nger, IEC 529)
Pollution degree:
2
Installation category:
III (with ≤ 300 V)
II (with > 300 V)
Insulation test:
Inputs:
300 V
2)
600
V
3)
Power supply: 230 V
Outputs:
40
V
Power supply
AC/DC power pack (DC or 50/60 Hz)
Rated voltage
Tolerance
24 - 60 V DC / AC
DC – 15 to + 33%
AC ± 15%
85 - 230 V DC / AC
Power consumption:
≤ 5 W resp. ≤ 7 VA
Option
Power supply from
measuring input
(self powered):
≥ 24 - 60 V AC or
85 - 230 V AC
Please note the max. and min. measuring
input
voltage!
Type label
inscription
(* acc. to appli-
cation N or U2)
Input voltage
range
= internal power
supply range
Tolerance Power
supply
connec-
tion
Self powered
by U1/*
(int. 24-60 V)
24 - 60 V AC
± 15%
Internal
measuring
input
Self powered
by U1/*
(int. 85-230 V)
85 - 230 V AC
2)
Overvoltage category III
3)
Overvoltage category II
