Data Sheet - Weigel Meßgeräte GmbH

Data Sheet - Weigel Meßgeräte GmbH
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Data Sheet
Multi-Functional
Transducer for
Currents, Voltages,
Power
MMU 3.0
055.9e
Application
Operating Principle
The multi - functional transducer MMU 3.0 accepts any measurable
quantity in existing single- phase or three- phase power supply systems,
converts these input signals into a load independent DC current and/or
impressed DC voltage (current and voltage are synchronous on analog
output 1) and issues the measured values parametrically to an interface
RS 232 and RS 485. A digital output is also available in the basic version.
Transducers with additional analog outputs (voltage or current programmable) and/or four resp. eight additional digital outputs are optionally
available.
Inputs (exept 10 V measuring input) are galvanically isolated from outputs and the auxiliary voltage input. The outputs are short - circuit proof
and safe against idling.
The transducers comply with the safety requirements and are tested for
interference immunity.
The transducers are designed to be mounted in machines/systems.
Regulations for installation of electrical systems and equipment have to
be observed.
Transformers in the current and voltage circuits galvanically isolate the
power inputs from the electronic circuitry. Hold- /sequence- circuits process the input signals and transfer them via a multiplexer and a AD- converter to the microprocessor which processes the signals and computes
all important measuring quantities.
The transducer is connected to the PC via a commercially available
RS232 cable (9 - contact 1:1 connection, socket - plug. An optional connection will be a 3 - contact cable provided the signals DTR and DSR as
well as RTS and CTS will be two - way bridged.)
Analog Outputs
Any of the measurable quantities (current, voltage, active-, reactive power, frequency etc.) can be allocated to each of the analog outputs.
The analog output available in the basic version synchronously provides
voltage and current (4 terminals). The output signal of each of the optional analog outputs can be parametrized freely (0/4 ... 20 mA, 0/2 ... 10
V, –10 ... 10 mA; linear or buckled characteristic curve).
Selection between current or voltage output is effected by software.
It is possible to connect more than one indicator, recorder or controller to
the output circuit provided the total impedance does not exceed the rating.
RS 232/485
The transducers are equipped with both a RS 232 and a RS 485 interface
enabling to request measured values and to perform adjustments. When
using the RS 485 interface, up to 32 devices can be networked and read
out via a 2- wire line (1000 m maximum length).
Digital Outputs
The digital outputs can be used as switching contacts for setpoint controlling.
Auxiliary Supply
Power supply is effected by a separate auxiliary voltage input.
Software
The software WSoft ready for execution on Windows® 95/98/2000/XP is
available for control of functions and for read - out of measured values.
The control is effected by the widespread machine language SCPI.
Sequence -/
Hold Circuit
INP 10 V Measuring Input
Analog Output 1
D
UL1
IA
A
RA
UL2
UA
Multiplexer
Measurement
The multi - functional transducer processes input currents up to 5 A and
input voltages up to 519 V at rated frequencies of 50 Hz and 60 Hz.
Depending on the measurement task, input terminals not required remain idle.
Measurement is effected in true RMS - values including wave forms up
to the 50th harmonics.
Block Circuit Diagram
UL3
IL1
RA
A
D
mP
Digital Output 1
(galvanically
isolated)
IL2
additional galvanically
isolated voltage-,
current - resp.
digital outputs
(optional)
IL3
UH
Interfaces
RS 232
RS 485
~
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General Technical Data
case details
material of case
terminals
wire cross - section
enclosure code
dielectric test
2210 V
3536 V
projecting case clamping to TH 35 DIN
rail according to DIN EN 60 715
Cycoloy C2950 black
self - extinguishing to UL rating 94 V–0
screw - terminals, maximum torque 0.8 Nm
4 mm2 max.
IP 40 case
IP 20 terminals
all circuits to case
currents to each other and to voltages;
inputs (exept 10 V measuring input) to
outputs, auxiliary voltage and interfaces;
auxiliary voltage to outputs and interfaces;
1000 V=
outputs to each other (the analog output 1 is
galvanically connected to 10 V measuring
input and to interfaces.)
operating voltage
300 V (rated voltage phase to zero)
class of protection
II
measurement category CAT III
pollution level
2
dimensions
basic version: 3 modules in single - phase
system resp. 4 modules in three - phase
systems,
optional outputs: additional 1 to 3 modules
each module WxHxL 22.5 mm x 80 mm x 115 mm
weight
approx. 0.6 kg (basic version)
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Data Sheet
055.9e
Multi-Functional
Transducer for
Currents, Voltages,
Power
Inputs
input quantities
voltages
currents
auxiliary supply
10 V measurement
input
rated input current
IEN
rated input voltage
UEN
operating voltage
modulation range
overload limits
frequency range
power consumption
AC current and AC voltage
L1, L2, L3 (3 terminals), N (1 terminal)
I1, I2, I3 (6 terminals)
UH (2 terminals)
e.g. connecting an analog converter
N/5 A '
519 V (inter- connected) '
519 V max.
1.2 UEN and 1.2 IEN
1.2 UEN, 1.6 IEN continuously
2 UEN, 10 IEN max. 1 s
50 ... 60 Hz
2 mA ±10% each voltage circuit
≤ 0.1 VA each current circuit for IEN = 1 A
≤ 1.6 VA each current circuit for IEN = 5 A
Measuring Quantities
current output
output current
IA
rated current
IAN
load range
RA
load error
residual ripple
idling voltage
current limitation
load independent DC current
0 (4) ... 20 mA or
0
... 10 mA (parameterizable)
0 ... 500 W (based on 20 mA)
0 ... 1000 W (based on 10 mA)
≤ 0.1% based on 50% load change
≤ 1%rms of IAN with load RA
≤ 16 V
up to 24 mA
voltage output
output voltage
UA
load independent DC voltage
rated voltage
UAN 0 (2) ... 10 V (parameterizable)
load
RA
≥ 4 kW (based on UAN)
load error
≤ 0.1% based on 50% load change
residual ripple
≤ 1%rms of UAN with load RA = UAN / 2 mA
idling voltage
≤ 16 V
voltage limitation
up to 12 V
Inputs (exept 10 V measuring input) and outputs are galvanically isolated.
Conversion Characteristics
Measuring Quantity
Total
L1
L2
L3
voltage (U)
U
U1
U2
U3
current (I)
I
1)
I1
I2
1)
I3
active power (P)
P
P1
P2 1)
P3
reactive power (Q)
Q
Q1
Q2 1)
Q3
apparent power (S)
S
S1
S2 1)
S3
active factor (PF)
PF
PF1
PF2 1)
PF3
reactive factor (QF)
QF
QF1
QF2 1)
QF3
phase angle (PH)
PH
PH1
PH2 1)
PH3
frequency (f)
F
Depending on power system, it will not be possible to measure all these
values.
10 V measuring input
INP
examples
standard
“live zero”
IA,
UA
IA,
UA
measuring
quantity
IA,
UA
measuring
quantity
IA,
UA
IA,
UA
(±10 V)
voltage & current synchronous
(2 terminals each)
interfaces
RS 232 (SUB–D jack)
RS 485 (2 terminals)
(All outputs listed above and the analog input have one and the same
potential.)
digital output
contact - free via opto coupler,
max. 230 V / 100 mA,
internal resistance 25 ... 35 W,
insulation voltage 2.3 kV,
switching frequency admissible ≤2 Hz
1, 2, or 3 additional analog outputs (galvanically isolated) and
up to 8 additional digital outputs (galvanically isolated) are optional '
response time
≤ 500 ms,
based on 50 Hz
exception for 3 - phase 3 - wire unbalanced
load system for quantities marked with 1)
(see table Measuring Quantities): ≤ 750 ms
additional response
20 ms for each value
time for serial output
(RS 232/485, 19,200 baud)
' refer also to Extras
IA,
UA
measuring
quantity
measuring
quantity
Outputs
Outputs '
analog output 1
incoming and outgoing
measuring
quantity
measuring
quantity
buckled characteristic curve
IA,
UA
IA,
UA
IA,
UA
measuring
quantity
measuring
quantity
measuring
quantity
Interfaces
type
Baud rate
data bit
parity
stop bit
RS 232 (V.24) and
RS 485 (SCPI commands)
19200 Baud
8
none
2
Auxiliary Supply
Environmental
auxiliary voltage UHN wide - range supply
20 ... 90 V DC resp. 15 ... 65 V AC,
90 ... 357 V DC resp. 65 ... 253 V AC
power consumption
< 10 VA
climatic suitability
operating
temperature range
storage
temperature range
relative humidity
Accuracy at Reference Conditions
accuracy
better than class 0.5 (±0.5% of end value)
exception for 3 - phase 3 - wire
unbalanced load system for quantities
marked with 1)
(see table Measuring Quantities)
These ratings are calculated values
(Aron circuit):
class 1.5 (±1.5% of end value)
temperature coefficient ≤ 0.06%/K
valid for standard products and a life - period of 1 year maximum
reference conditions
input current
input voltage
power factor
frequency
wave form
auxiliary voltage
load
ambient temperature
warm - up
IEN ±0.5%
UEN ±0.5%
cos ϕ =1
50 Hz
sine wave, distortion factor ≤ 1%
UHN ±1%, 48 ... 62 Hz
0.5 RA max ±1% based on current
10 kW ±1% based on voltage
23°C ±1K
≥5 min
climatic class 3 to VDE/VDI 3540 sheet 2
–10 ... +55°C
–25 ... +65°C
≤ 75% annual average, non - condensing
Rules and Standards
DIN EN 60 529
DIN EN 60 688
Enclosure codes by housings (IP - code)
Electrical measuring transducers
converting AC quantities into analog or
digital signals
DIN EN 60 715
Dimensions of low voltage switching devices:
standardized DIN rails for mechanical fixation
of electrical devices in switchgears
DIN EN 61 010 - 1
Safety requirements for electrical measuring,
control and laboratory equipment
Part 1: General requirements
DIN EN 61 326 - 1
Electrical equipment for measurement, con trol and laboratory use – EMC requirements
Part 1: General requirements
(IEC 61 000 - 4 - 3 evaluation criterion B)
VDE/VDI 3540 sheet 2 Reliability of measuring and control
equipment (classification of climates for
equipment and accessories)
Data Sheet
=
055.9e
Multi-Functional
Transducer for
Currents, Voltages,
Power
Connections
Terminals
input
D61 D62
D21 D22
– A2 +
D71 D72
D31 D32
– A3 +
D81 D82
D41 D42
– A4 +
D91 D92
D51 D52
1
3
D11 D12
4
6
14 13
7
9
20 19
active and reactive power, single - phase
front view
digital
outputs
6 to 9
active and reactive power, 3 - phase, 3 - wire, balanced load
terminal
digital
outputs
2 to 5
analogā
outputs
2 to 4
2
11
A
B
5 8
17 16
E– E+
basic version for 3āĆāphase network (one
module inapplicable for singleāĆāphase
network)
MMU 3.0
1 IE L1
2 U E L1
3 IE L1
4 IE L2
5 U E L2
6 IE L2
active and reactive power, 3 - phase, 4 - wire, balanced load
7 IE L3
8 U E L3
9 IE L3
11 UE N
13 UA1 (+)
14 UA1 (–)
16 UH L1 (+)
17 UH N (–)
active and reactive power, 3 - phase, 3 - wire, unbalanced load
19 IA1 (+)
20 IA1 (–)
E+ UE (+)
E– UE (–)
A RS 485
B RS 485
SUBāĆāD RS 232
Dn1 digital output n, contact 1, (n = 1 ... 9)
active and reactive power, 3 - phase, 4 - wire, unbalanced load
Dn2 digital output n, contact 2, (n = 1 ... 9)
Amā– analog output m, negative pole, (m = 2 ... 4)
Am+ analog output m, positive pole, (m = 2 ... 4)
Depending on the measurement task, input - resp. output - terminals remain idle.
current input
IE
voltage input
UE
The numbers on the terminals correspond to details
in connection diagrams (refer to DIN 43 807).
IA
current output
voltage output
UA
UH
auxiliary voltage input
RS232-Interconnection
Ordering Guide
type
DSR 6
RTS 7
CTS 8
RI 9
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
multi - functional transducer
for currents, voltages, power
MMU 3.0
9āĆācontact
interconnection
E
basic version for single - phase AC
D
basic version for 3 - phase network
outputs *)
analog output 1 (voltage & current synchronous)
digital output 1
3āĆācontact
interconnection
Extras
outputs
1, 2 or 3 additional
analog outputs
4 or 8 additional
digital outputs
rated input current
IEN
rated input voltage
UEN
can be parametrized via software between
20 mA (load<500 W) and 10 V (load >4 kW);
galvanically isolated,
power supply unit integrated
(width: 1 module)
230 V, galvanically isolated
(width: 1 resp. 2 modules)
N/1.2 A (also programmable for N/1 A,
with same accuracy)
N/120 V (inter- connected)
(also programmable for N/100 V or N/110 V,
with same accuracy)
analog outputs
A1
1 additional analog output with basic version
A2
2 additional analog outputs with basic version
A3
3 additional analog outputs with basic version
Ax
additional analog outputs with basic version**)
digital outputs
D4
4 additional digital outputs with basic version
D8
8 additional digital outputs with basic version
auxiliary supply
H4
DC 20 ... 90 V / AC 15 ... 65 V
H5
DC 90 ... 357 V / AC 65 ... 253 V
programming
P0
by user *)
P1
by factory
accessory
Dimensions
WSoft
example: basic version with 3 modules, width: each module 22.5 mm
side view
front view
software on CD for configuration and
read - out of measured values
RS 232 – RS 232 cable (serial connection cable)
USB – RS 232 converter with cable (1.8 m)
67.5
AP-RS232/485 RS 232 - 485 converter
*)
**)
standard
on request
Note: Data relating to input, measuring range and to the output assignment are not required, as the transducers are suitable to be configured
with a PC or laptop.
ordering example
80
115
MMU 3.0
D D4 H5 P0 WSoft
multi - functional transducer for use on 3- phase network
(1 analog output and 1 digital output included),
not any additional analog outputs,
4 additional digital outputs,
auxiliary voltage DC 90 ... 357 V / AC 65 ... 253 V,
user- programming; software WSoft
(dimensions in mm)
Weigel Meßgeräte GmbH
Postfach 720 154 S 90241 Nürnberg S Phone: 0911 / 4 23 47- 0
Erlenstraße 14 S 90441 Nürnberg S Fax: 0911 / 4 23 47- 39
Sales:
Phone: 0911 / 4 23 47- 94
Internet:
http://www.weigel–messgeraete.de
e–mail:
vertrieb@weigel–messgeraete.de
- specifications subject to change without notice; date of issue 1/11 -
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