Weigel WPM 735 E User manual

Operating Manual
Digital Multifunctional
Power Meter
with LCD Display
- 1 -
679.B.121.01
WPM 735 E
WPM 735 P
Contents
1. Safety Notes..............................................................................................................2
2. General Information...................................................................................................3
3. Dimensions ...............................................................................................................4
4. Connection ................................................................................................................5
4.1. Connection diagrams ................................................................................................5
4.2. Terminals ..................................................................................................................6
4.3. Installing and connecting the meter ...........................................................................7
5. Display and Keys.......................................................................................................8
5.1. LCD Display ..............................................................................................................8
5.2. Key functions.............................................................................................................8
6. Displaying Measured Values .....................................................................................9
6.1. Reading the real-time values .....................................................................................9
6.2. 4-Quadrant measurement and display.....................................................................10
6.3. Reading the energy values...................................................................................... 10
7. Calculation Methods ................................................................................................12
7.1. Demand ..................................................................................................................12
7.2. Energies..................................................................................................................12
7.3. Harmonics............................................................................................................... 12

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WEIGEL-MESSGERÄTE GmbH
P.O.B. 720 154 D–90241 Nürnberg Phone: 0911 / 4 23 47–0
Erlenstraße 14 D–90441 Nürnberg Fax: 0911 / 4 23 47–39
Management: Phone: 0911 / 4 23 47–94
Internet: http://www.weigel-messgeraete.de
e-mail: [e-mail]
8. Programming the Meter ...........................................................................................13
8.1. Start programming...................................................................................................13
8.2. General programming menus ..................................................................................14
8.3. Product-specific programming menus......................................................................15
9. Status Inputs ...........................................................................................................16
10. Pulse Outputs..........................................................................................................16
11. Analog Output .........................................................................................................17
12. Event Monitoring SOE .............................................................................................19
13. Troubleshooting.......................................................................................................20
14. Technical Data ........................................................................................................21
15. Conformity...............................................................................................................21
1. Safety Notes
Warning
•This device may only installed or maintained by personnel who have the required
technical and specialist knowledge.
•The manufacturer will not hold any responsability for damage due to disregarding this
manual.
Risk of electric hazard, fire, or explosion
•Before working on the device or equipment, disconnect all conductors of voltage inputs
and auxiliary supply from mains power. The outputs of all the current transformers must
be short-circuited.
•Use a suitable measuring device to confirm the absence of hazardous voltage.
•Put all covers and protection devices in place before energizing the equipment.
•Always supply the device with the correct rated voltage (see the label on the device).
Not observing these precautions may cause serious injuries.

Operating Manual
Digital Multifunctional
Power Meter
with LCD Display
- 3 -
679.B.121.01
2. General Information
WPM 735 is a multi-functional power meter, integrating data acquisition and control into a
whole. It can take the place of numerous meters, transducers, and other components.
WPM 735 is equipped with an RS485 communication port, so it can be integrated into any
electric power monitoring system. Using the configuration software, all measured values
and events can be read out, and the meter settings can be carried out easily. This software
can be downloaded from www.weigel-messgeraete.de
WPM 735 P additionally provides a PROFIBUS communication port with a maximum data
transfer rate of 1.5 Mbits/sec which enables real-time monitoring.
WPM 735 enables true effective measurement, able to carry out accurate measurement of
highly non-linear loads. Harmonics up to the 31st harmonic can be read out. Dozens of
measured values and minimum/maximum values can be viewed on the display or read out
via software.
WPM 735
Basic unit Addon module
Side view Rear view Rear view
Note: The addon module and the connection layout are different on WPM 735 E and on
WPM 735 P as well on custom meter versions!

- 4-
WEIGEL-MESSGERÄTE GmbH
P.O.B. 720 154 D–90241 Nürnberg Phone: 0911 / 4 23 47–0
Erlenstraße 14 D–90441 Nürnberg Fax: 0911 / 4 23 47–39
Management: Phone: 0911 / 4 23 47–94
Internet: http://www.weigel-messgeraete.de
e-mail: [e-mail]
3. Dimensions
Addon
module

Operating Manual
Digital Multifunctional
Power Meter
with LCD Display
- 5 -
679.B.121.01
4. Connection
The WPM 735 is connected by 3 terminal strips which can be pulled out and inserted, thus
facilitating on-site wiring and maintenance. The terminal strip with current connections (on
top of the meter) can be fixed by two screws in order to prevent unintentional pull-out and
thus prevent dangerous induction voltages when current terminals are not connected.
4.1. Connection diagrams
3-phase 4-wire system
3-phase 3-wire system, 3 CTs 3-phase 3-wire system, 2 CTs

- 6-
WEIGEL-MESSGERÄTE GmbH
P.O.B. 720 154 D–90241 Nürnberg Phone: 0911 / 4 23 47–0
Erlenstraße 14 D–90441 Nürnberg Fax: 0911 / 4 23 47–39
Management: Phone: 0911 / 4 23 47–94
Internet: http://www.weigel-messgeraete.de
e-mail: [e-mail]
4.2. Terminals
Basic unit
Addon module
Terminal assignment of basic unit
No. Terminal Description No. Terminal Description
1 L/+ auxiliary supply 15 RS485A+ RS485+
2 NC not connected 16 RS485B– RS485 –
3 N/– auxiliary supply 17 SHLD shield
4 NC not connected 18 NC not connected
5 FG protective ground 19 NC not connected
6 NC not connected 20 A1 analog output +
7 NC not connected 21 AG analog output –
8 NC not connected 22 VN neutral
9 I32 current L3 23 NC not connected
10 I31 current L3 24 V3 voltage L3
11 I22 current L2 25 NC not connected
12 I21 current L2 26 V2 voltage L2
13 I12 current L1 27 NC not connected
14 I11 current L1 28 V1 voltage L1

Operating Manual
Digital Multifunctional
Power Meter
with LCD Display
- 7 -
679.B.121.01
Terminal assignment of addon module
No. Terminal WPM 735 E only No. Terminal WPM 735 P only
29 P2– 29 RB termination resistor B
30 P2+
pulse output
reactive energy 30 P– Profibus –
31 P1– 31 P+ Profibus +
32 P1+
pulse output
active energy 32 RA termination resistor A
33 Scom supply +30V
status inputs
33 SHLD shield
34 S8 status input 8 34 NC not connected
35 S7 status input 7 35 NC not connected
36 S6 status input 6 36 NC not connected
37 S5 status input 5 37 NC not connected
38 S8 status input 4 38 NC not connected
39 S7 status input 3 39 NC not connected
40 S6 status input 2 40 NC not connected
41 S5 status input 1 41 NC not connected
42 NC not connected 42 NC not connected
Notes on WPM 735 E
•For the status inputs, external switch
contacts are required.
•For the analog and pulse outputs see the
according descriptions below
4.3. Installing and connecting the meter
♦Make sure that all the lines are de-energized and the outputs of the current transducers
are short-circuited.
♦Insert the meter into the panel cutout.
♦Fix the meter using the two plastic clips.
♦Connect the meter according the terminal assignment (also see the print on the meter).
♦Insert the terminal strips into the meter and fasten the two screws of the terminal strip
with the current inputs (upper terminal strip).

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WEIGEL-MESSGERÄTE GmbH
P.O.B. 720 154 D–90241 Nürnberg Phone: 0911 / 4 23 47–0
Erlenstraße 14 D–90441 Nürnberg Fax: 0911 / 4 23 47–39
Management: Phone: 0911 / 4 23 47–94
Internet: http://www.weigel-messgeraete.de
e-mail: [e-mail]
5. Display and Keys
5.1. LCD Display
Displays for:
A: THD (Total Harmonic Distortion)
B: Harmonics
C: Phases* and Quadrants**
D: Real-time values
E: Units of real-time values
F: Communication
G: Energy values and programming
H: Unit of energy
J: Keys
K: Status inputs (WPM 735 E only)
L: Pulse outputs (WPM 735 E only)
M: Quadrants for energy
N: SOE functions/Programming menu
O: Programming
P: Real-time measuring quantity
Q: Unbalance indication
R: Min./Max. values and demand
1: Logo
2: Product name
* The phases are indicated by A, B, C:
A = L1, B = L2, C = L3
** none (+) = import, -= export
= capacitive, = inductive
MAX
TH D
MIN
DMD
V
A
W
A B
CA
BC
S1 S2 S3 S4 S5 S6 S7 S8
Unbal
WPM735
WEIGEL
5.2. Key functions
in programming mode
Key in display mode
when viewing when changing
submenu up - move cursor left
submenu down - move cursor right
main menu down menu down decrease value of
selected digit
main menu up menu up increase value of
selected digit
page energies* change setting confirm setting
enter programming mode leave programming
mode
leave programming
mode
* also DATE, TIME, and INFO with SOE option

Operating Manual
Digital Multifunctional
Power Meter
with LCD Display
- 9 -
679.B.121.01
6. Displaying Measured Values
6.1. Reading the real-time values
The measured real-time values can be selected via the main menu and submenus.
♦For paging the main menu, press one of these keys (down) (up).
•For paging in a submenu, press one of these keys (back) (forward).
Display Main menu Submenus
Voltages L-L
Unbalance rate of voltages L-L
Voltages L-N
UVoltage
Unbalance rate of voltages L-N
Phase currents
Unbalance rate of currents
ICurrent
Neutral current
Total active power
PActive power
Phase active powers
Total reactive power
QReactive power
Phase reactive powers
Total apparent power
SApparent power
Phase apparent powers
Total power factor
PF Power factor
Phase power factors
FFrequency -
I: Average current demand and max. demand
I: Date/time* of current maximum demand
P: Average active power demand and max. demand
P: Date/time* of active power maximum demand
Q: Average reactive power demand and max. demand
Q: Date/time* of reactive power maximum demand
S: Average apparent power demand and max. demand
MAX DMD Demand and
max. demand
* Time of occurrence:
1. row: year, month
2. row: day, hour
3. row: minute, second S: Date/time* of apparent power maximum demand

- 10 -
WEIGEL-MESSGERÄTE GmbH
P.O.B. 720 154 D–90241 Nürnberg Phone: 0911 / 4 23 47–0
Erlenstraße 14 D–90441 Nürnberg Fax: 0911 / 4 23 47–39
Management: Phone: 0911 / 4 23 47–94
Internet: http://www.weigel-messgeraete.de
e-mail: [e-mail]
Display Main menu Submenus
Total Harmonic Distortion (THD) of voltages
THD U Voltage
harmonics HD01 ... HD31: individual harmonics of voltages
Total Harmonic Distortion (THD) of currents
THD I Current
harmonics HD01 ... HD31: individual harmonics of currents
I: Maximum phase currents
P: Maximum values of total active power
Q: Maximum values of total reactive power
S: Maximum values of total apparent power
THD I: Maximum THD of currents
MAX Maximum values
THD U: Maximum THD of voltages
I: Minimum phase currents
P: Minimum values of total active power
Q: Minimum values of total reactive power
S: Minimum values of total apparent power
THD I: Minimum THD of currents
MIN Minimum values
THD U: Minimum THD of voltages
6.2. 4-Quadrant measurement and display
The currents and powers are measured in 4 quadrants:
6.3. Reading the energy values
One energy values can be displayed at a time in addition to current the real-time value
display.
♦When any real-time value is displayed, press this key , once or several times.