Woodward UMT 1 User manual

37139C
Manual
Version 1.9xx / 2.0xx / 2.1xx / 3.0xx / 3.1xx
Manual 37139C
UMT 1
Measuring Transducer

Manual 37139C UMT 1 - Measuring Transducer
Page 2/62 © Woodward
WARNING
Read this entire manual and all other publications pertaining to the work to be performed before instal-
ling, operating, or servicing this equipment. Practice all plant and safety instructions and precautions.
Failure to follow instructions can cause personal injury and/or property damage.
The engine, turbine, or other type of prime mover should be equipped with an overspeed (overtempe-
rature, or overpressure, where applicable) shutdown device(s), that operates totally independently of
the prime mover control device(s) to protect against runaway or damage to the engine, turbine, or oth-
er type of prime mover with possible personal injury or loss of life should the mechanical-hydraulic
governor(s) or electric control(s), the actuator(s), fuel control(s), the driving mechanism(s), the lin-
kage(s), or the controlled device(s) fail.
Any unauthorized modifications to or use of this equipment outside its specified mechanical, electric-
al, or other operating limits may cause personal injury and/or property damage, including damage to
the equipment. Any such unauthorized modifications: (i) constitute "misuse" and/or "negligence" with-
in the meaning of the product warranty thereby excluding warranty coverage for any resulting damage,
and (ii) invalidate product certifications or listings.
CAUTION
To prevent damage to a control system that uses an alternator or battery-charging device, make sure
the charging device is turned off before disconnecting the battery from the system.
Electronic controls contain static-sensitive parts. Observe the following precautions to prevent dam-
age to these parts.
•
Discharge body static before handling the control (with power to the control turned off, contact a
grounded surface and maintain contact while handling the control).
•
Avoid all plastic, vinyl, and Styrofoam (except antistatic versions) around printed circuit boards.
•
Do not touch the components or conductors on a printed circuit board with your hands or with
conductive devices.
OUT-OF-DATE PUBLICATION
This publication may have been revised or updated since this copy was produced. To verify that you
have the latest revision, be sure to check the Woodward website:
http://www.woodward.com/pubs/current.pdf
The revision level is shown at the bottom of the front cover after the publication number. The latest
version of most publications is available at:
http://www.woodward.com/publications
If your publication is not there, please contact your customer service representative to get the latest
copy.
Important definitions
WARNING
Indicates a potentially hazardous situation that, if not avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that, if not avoided, could result in damage to equipment.
NOTE
Provides other helpful information that does not fall under the warning or caution categories.
Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be
correct and reliable. However, Woodward assumes no responsibility unless otherwise expressly undertaken.
© Woodward
All Rights Reserved.

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 3/62
Revision History
Rev.
Date
Editor
Changes
NEW
03-05-06
Tr
Release
A
05-09-29
TP
Re-release in new format with minor corrections and language revision
B
06-04-04
TP
Wiring diagram and technical data updated
C
11-04-29
TE
Wiring diagram updated; Technical data updated
INACTIVE – FOR REFERENCE ONLY
The information in this publication is no longer current, and may not reflect changes or safety issues
that have occurred since the publication was originally released.
Refer to the UMT 1 Packages manual 37356 for more recent information about the UMT 1 unit.
Contents
Introduction...............................................................................................................................................
CHAPTER 1. GENERAL INFORMATION ....................................................................................... 6
6
CHAPTER 2. ELECTROSTATIC DISCHARGE AWARENESS ............................................................ 7
Wiring Diagram 100/400 V Version..........................................................................................................
CHAPTER 3. INSTALLATION ...................................................................................................... 8
8
Wiring Diagram 690 V Version................................................................................................................. 9
Power Supply (Standard / Option N) ...................................................................................................... 10
Measuring Inputs.................................................................................................................................... 11
Voltage ......................................................................................................................................... 11
Currrent ........................................................................................................................................ 12
Outputs................................................................................................................................................... 13
Analog Outputs (Options A1 to A8).............................................................................................. 13
Pulse Output (Options A1 to A8).................................................................................................. 13
Interface (Options SU) ........................................................................................................................... 14
Direction of Power ..................................................................................................................................
CHAPTER 4. FUNCTIONAL DESCRIPTION ................................................................................. 15
15
Power Factor Definition .......................................................................................................................... 16
Brief Description of LEDs and Push Buttons..........................................................................................
CHAPTER 5. DISPLAY AND OPERATING ELEMENTS .................................................................. 18
18
LEDs....................................................................................................................................................... 19
Push-Buttons.......................................................................................................................................... 20
LC-Display.............................................................................................................................................. 21
Display in Automatic Mode (First Line of the Display: Measured Values).................................... 21
Display in Automatic Mode (Second Line of the Display: Measured Values) .............................. 22

Manual 37139C UMT 1 - Measuring Transducer
Page 4/62 © Woodward
Basic Data..............................................................................................................................................
CHAPTER 6. CONFIGURATION................................................................................................. 23
24
Configuration Access............................................................................................................................. 24
Sealing (Until Version 1.9xx) ....................................................................................................... 24
Password (Starting with Version 2.0xx / 3.0xx) ........................................................................... 26
Change Passwords (Starting with Version 2.0xx / 3.0xx)............................................................ 27
Measurement......................................................................................................................................... 28
Potential Transformer Configuration ........................................................................................... 28
Current Transformer Configuration ............................................................................................. 28
Measuring System ................................................................................................................................. 29
Pulse Output for Energy Counter........................................................................................................... 29
Screens for "+kvarh" and "-kvarh" Setting ................................................................................... 29
Screens for "+kWh" and "-kWh" Setting...................................................................................... 30
Energy Counter Display............................................................................................................... 30
Common Screens........................................................................................................................ 30
Display Refresh Time .................................................................................................................. 31
Measuring Filter........................................................................................................................... 31
Analog Outputs (Options A1/2/3/4/6/8).................................................................................................. 32
Interface (Option SU)............................................................................................................................. 34
Screens for Protocol DK3964 (Option SU) .................................................................................. 34
Screens for Protocol Profibus DP Slave (Option SU).................................................................. 34
Screens for Protocol Modbus RTU Slave (Option SU)................................................................ 34
Screens for Protocol CAN Bus (Options SU/SB) ........................................................................ 35
CHAPTER 7. COMMISSIONING ................................................................................................. 36
Measuring System 1W...........................................................................................................................
APPENDIX A. MEASURING SYSTEMS ....................................................................................... 38
38
Measuring System 1W4......................................................................................................................... 39
Measuring System 1W3......................................................................................................................... 39
Measuring System 2W3......................................................................................................................... 40
Measuring System 2W4......................................................................................................................... 40
APPENDIX B. DIMENSIONS ..................................................................................................... 41
APPENDIX C. TECHNICAL DATA .............................................................................................. 42
APPENDIX D. MEASURED QUANTITIES AND ACCURACY............................................................ 44
Communication Interface Addresses.....................................................................................................
APPENDIX E. INTERFACE TELEGRAM ...................................................................................... 45
45
Description of the Data Format.............................................................................................................. 48
Examples..................................................................................................................................... 49
Framework Data for the Interfaces ........................................................................................................ 50
Framework Data to Procedure 3964 (TTY, RS-232, RS-485)..................................................... 50
Framework Data for Hardware Handshaking RTS/CTS (RS-232, RS-422)................................ 50
Framework Data for Modbus RTU Slave .................................................................................... 50
Framework Data for CAN Bus..................................................................................................... 51
Framework Data for Profibus DP ................................................................................................ 52
APPENDIX F. LIST OF PARAMETERS........................................................................................ 53
Product Service Options ........................................................................................................................
APPENDIX G. SERVICE OPTIONS ............................................................................................ 57
57
Returning Equipment for Repair ............................................................................................................ 57
Packing a Control ........................................................................................................................ 58
Return Authorization Number RAN ............................................................................................. 58
Replacement Parts ................................................................................................................................ 58
How to Contact Woodward .................................................................................................................... 59
Engineering Services ............................................................................................................................. 60
Technical Assistance ............................................................................................................................. 61

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 5/62
Illustrations and Tables
Illustrations
Figure 3-1: Wiring diagram 100/400 V version .......................................................................................................................... 8
Figure 3-2: Wiring diagram 690 V version ................................................................................................................................. 9
Figure 3-3: Power supply.......................................................................................................................................................... 10
Figure 3-4: Measuring inputs - voltage 100/400 V versions..................................................................................................... 11
Figure 3-5: Measuring inputs - voltage, 690 V version ............................................................................................................ 11
Figure 3-6: Measuring inputs - current 100/400 V versions ..................................................................................................... 12
Figure 3-7: Measuring inputs - current, 690 V version............................................................................................................. 12
Figure 3-8: Analog outputs ....................................................................................................................................................... 13
Figure 3-9: Impulse output........................................................................................................................................................ 13
Figure 3-10: Interfaces .............................................................................................................................................................. 14
Figure 3-11: Shielded wiring .................................................................................................................................................... 14
Figure 4-1: Direction of power ................................................................................................................................................. 15
Figure 5-1: Front panel ............................................................................................................................................................. 18
Figure 7-1: 1W measuring system............................................................................................................................................. 38
Figure 7-2: 1W4 measuring system........................................................................................................................................... 39
Figure 7-3: 1W3 measuring system........................................................................................................................................... 39
Figure 7-4: 2W3 measuring system........................................................................................................................................... 40
Figure 7-5: 2W4 measuring system........................................................................................................................................... 40
Figure 7-6: Dimensions............................................................................................................................................................. 41
Figure 7–7: Analog outputs - power factor scaling ................................................................................................................... 48
Figure 7–8: Interface - Modbus connection .............................................................................................................................. 50
Figure 7-9: Interface - Profibus DP slave.................................................................................................................................. 52
Tables
Table 5-1: Parameter display..................................................................................................................................................... 22
Table 6-1: Analog outputs, table of values................................................................................................................................ 32
Table 7-1: Analog outputs, table of values................................................................................................................................ 56

Manual 37139C UMT 1 - Measuring Transducer
Page 6/62 © Woodward
Chapter 1.
General Information
Introduction
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
The UMT 1 is a measuring transducer for true RMS values. The UMT 1 can measure an electrical three-phase
system with current and voltage measuring inputs. The primary measured values are calculated and displayed on
the two-line, 16 character LC Display, and also transmitted by either analog outputs (configurable as -20 to
20 mA, 0 to 20 mA, or 4 to 20 mA) or a communication interface to a higher level-control system. Different
packages offer additional functionality.
The detailed model description for the UMT 1 reads as follows:
UMT1
1
5
-h0000
B/
ABDEF..Z
Options according to list of options.
This options can be found in the manual. Each chapter headline points out if
the described function is standard or has to be ordered optionally.
Mounting
[B].. Flush-mounting
[M].. DIN-rail/rear panel mounting
Hardware variation
non-standard models; e.g. additional relays
Current transformer, secondary
[1] = ../1 A
[5] = ../5 A
Voltage transformer/PTs, secondary
[1] = 100 Vac
[4] = 400 Vac
Type
Examples:
•UMT141B/A3SU
•
(flush mounted, standard unit with 400 Vac PT and 1 A CT with the Options A3 & SU
[Modbus])
UMT115B/A6
(flush mounted, standard unit with 100 Vac PT and 5 A with the Option A6 [6 configurable
analog outputs])
Intended Use The unit must only be operated in the manner described by this manual. The prerequisite for a
proper and safe operation of the product is correct transportation, storage, and installation as well as careful oper-
ation and maintenance.
NOTE
This manual has been developed for a unit fitted with all available options. Inputs/outputs, functions,
configuration screens, and other details described, which do not exist on your unit, may be ignored.
The present manual has been prepared to enable the installation and commissioning of the unit. Due
to the large variety of parameter settings, it is not possible to cover every combination. The manual is
therefore only a guide. In case of incorrect entries or a total loss of functions, the default settings may
be taken from the list of parameters enclosed at the rear of this manual.

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 7/62
Chapter 2.
Electrostatic Discharge Awareness
All electronic equipment is static-sensitive, some components more than others. To protect these components
from static damage, you must take special precautions to minimize or eliminate electrostatic discharges.
Follow these precautions when working with or near the control.
1. Before doing maintenance on the electronic control, discharge the static electricity on your body to ground
by touching and holding a grounded metal object (pipes, cabinets, equipment, etc.).
2. Avoid the build-up of static electricity on your body by not wearing clothing made of synthetic materials.
Wear cotton or cotton-blend materials as much as possible because these do not store static electric
charges as easily as synthetics.
3. Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoam cups, cigarette packages, cello-
phane wrappers, vinyl books or folders, plastic bottles, etc.) away from the control, modules, and work
area as much as possible.
4. Opening the control cover may void the unit warranty.
Do not remove the printed circuit board (PCB) from the control cabinet unless absolutely necessary. If you
must remove the PCB from the control cabinet, follow these precautions:
•Ensure that the device is completely voltage-free (all connectors have to be disconnected).
•Do not touch any part of the PCB except the edges.
•Do not touch the electrical conductors, connectors, or components with conductive devices or with bare
hands.
•When replacing a PCB, keep the new PCB in the plastic antistatic protective bag it comes in until you
are ready to install it. Immediately after removing the old PCB from the control cabinet, place it in the
antistatic protective bag.
CAUTION
To prevent damage to electronic components caused by improper handling, read and observe the pre-
cautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls,
Printed Circuit Boards, and Modules.

Manual 37139C UMT 1 - Measuring Transducer
Page 8/62 © Woodward
Chapter 3.
Installation
Wiring Diagram 100/400 V Version
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
3/(4)
Measuring voltage L1
supervised system
s2 (l)
s1 (k)
s2 (l)
s1 (k)
s1 (k)
s2 (l)
Subject to technical modifications.
15 16 6 7 10912 13 1
0 Vdc
Measuring current L1
Measuring current L2
Measuring current L3
Measuring voltage
three-wire or
four-wire system
2 43
(Measuring voltage N)
Measuring voltage L2
Measuring voltage L3
52
+/- 10 V
Analog output 2
A8
A4
Possible combinations: A1/A2/A3/A4+S.., A6, A8, S..
+/- 10 V
E (open collector)
C (kWh impulse)
A1..8
A1
Analog output 1
Common 1 + 2
2004-02-26 | UMT 1 Wiri ng Diagram u1ww-0904-ap.skf
60 61
50 51
0
+/ - 20 mA
+/ - 20 mA
+/ - 20 mA
+/- 10 V
+/- 10 V
+/ - 20 mA
+/ - 20 mA
+/- 10 V
+/- 10 V
+/- 10 V
+/- 10 V
+/ - 20 mA
Analog output 5
A2
A6
A3
A6A8
Analog output 3
Analog output 2
Analog output 1
Analog output 4
Analog output 3
Common 3 + 4
Analog output 4
Analog output 8
Analog output 7
Analog output 6
Analog output 5
Common 5 + 6
Common 7 + 8
S..
S..
A.., S..
Interface
RS232, RS422, RS485
TTY, MOD bus slave
CAN bus, modem
Profi bus DP
Analog output 6
Alternatively
8453
0
5254 55 50 51 53 54 55
0
0
0
Alternatively
81 82 8381 82 83 84 85 86
0
0
0
0
0
X1 X2 X386 87 X4 X5
0
X6
Standard
Measuring voltage: 100 V AC or 400 V AC
The socket for the PC parameterization is located
on the side of the unit. This is where the direct
parameterizing cable DPC must be plugged in.
UMT 1 (100/400 V version)
Standard
Measuring in ...
L1
L1
L1
L1 and L3
L1, L2 and L3
System
1W
1W4
1W3
2W3
2W4
Type of network
> 1-phase
> 3-phase
- 4-wire
- sym. load
> 3-phase
- 3-wire
- sym. load
> 3-phase
- 3-wire
- asym. load
> 3-phase
- 4-wire
- asym.load
The network configuration as well as the terminal
configuration of the voltage and current
measuring inputs can be adjusted in the display.
3/(4)
S1 (K) s1 (k)
S2 (L) s2 (l)
S1 (K)
S2 (L) s2 (l)
S1 (K) s1 (k)
S2 (L) s2 (l)
s1 (k)
L2
L1
L3
24 Vdc
Option N: 90 to 265 Vac/dc
Figure 3-1: Wiring diagram 100/400 V version

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 9/62
Wiring Diagram 690 V Version
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
3/(4)
supervised system
s2 (l)
s1 (k)
s2 (l)
s1 (k)
s1 (k)
s2 (l)
Subject to technical modifications.
7 8 40 41 4342 44 45
0 Vdc
Measuring current L1
Measuring current L2
Measuring current L3
52
+/- 10 V
Analog output 2
A8 A4
Possible combinations: A1/A2/A3/A4+S.., A6, A8, S..
+/- 10 V
E (open collector)
C (kWh impulse)
A1..8
A1
Analog output 1
Common 1 + 2
2004-11-16 | UMT 1 Wiring Diagram u1ww-1110-ap.skf
60 61
50 51
0
+/ - 20 mA
+/ - 20 mA
+/ - 20 mA
+/- 10 V
+/- 10 V
+/ - 20 mA
+/ - 20 mA
+/- 10 V
+/- 10 V
+/- 10 V
+/- 10 V
+/ - 20 mA
Analog output 5
A2
A6 A3
A6A8
Analog output 3
Analog output 2
Analog output 1
Analog output 4
Analog output 3
Common 3 + 4
Analog output 4
Analog output 8
Analog output 7
Analog output 6
Analog output 5
Common 5 + 6
Common 7 + 8
S.. S..
A.., S..
Interface
RS232, RS422, RS485
TTY, MOD bus slave
CAN bus, modem
Profi bus DP
Analog output 6
Alternatively
84
53
0
5254 55 50 51 53 54 55
0
0
0
Alternatively
81 82 83
81 82 83 84 85 86
0
0
00
0
X1 X2 X386 87 X4 X5
0
X6
Standard
Measuring voltage: 690 V AC
The socket for the PC parameterization is located
on the side of the unit. This is where the direct
parameterizing cable DPC must be plugged in.
UMT 1 (690 V version)
Measuring voltage L1
1
Measuring voltage
three-wire or
four-wire system
2 43
(Measuring voltage N)
Measuring voltage L2
Measuring voltage L3
5 6
Standard
3
Measuring in ...
L1
L1
L1
L1 and L3
L1, L2 and L3
System
1W
1W4
1W3
2W3
2W4
Type of network
> 1-phase
> 3-phase
- 4-wire
- sym. load
> 3-phase
- 3-wire
- sym. load
> 3-phase
- 3-wire
- asym. load
> 3-phase
- 4-wire
- asym.load
The network configuration as well as the terminal
configuration of the voltage and current
measuring inputs can be adjusted in the display.
3/(4)
S1 (K) s1 (k)
S2 (L) s2 (l)
S1 (K)
S2 (L) s2 (l)
S1 (K) s1 (k)
S2 (L) s2 (l)
s1 (k)
L2
L1
L3
24 Vdc
Option N: 90 to 265 Vac/dc
2004-11-16 | UMT 1 Wiring Diagram u1ww-1110-ap.skf
Figure 3-2: Wiring diagram 690 V version

Manual 37139C UMT 1 - Measuring Transducer
Page 10/62 © Woodward
WARNING
All technical data and ratings indicated in this chapter are not definite! Only the values indicated under
Technical Data on page 42 are valid!
CAUTION
A circuit breaker must be located near to the unit and in a position easily accessible to the operator.
This must also bear a sign identifying it as an isolating switch for the unit.
NOTE
Inductive devices connected to the system (such as operating current coils, undervoltage tripping
units, or auxiliary/power contacts) must be connected to a suitable interference suppressor.
Power Supply (Standard / Option N)
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Standard
Wide-range power supply
90-265 Vac/dc
- / N
+ / L
B
A
24 Vdc
24 V DC
0 V
B
A
Power supply
Power supply
Figure 3-3: Power supply
Terminal
Description
Amax
120/400 V version
A 16
24 Vdc (18 to 30 Vdc), max. 10 W
90 to 265 Vac/dc, max. 10 W (Option N)
2.5 mm²
B 15 0 V reference point 2.5 mm²
690 V version
A 8 24 Vdc (18 to 30 Vdc), max. 10 W
90 to 265 Vac/dc, max. 10 W (Option N)
2.5 mm²
B
7
0 V reference point
2.5 mm²

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 11/62
Measuring Inputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
NOTE
The various distribution systems (w-system) must be taken into account when configuring the moni-
toring devices. Refer to “Measuring Systems” on page 29 for a description of these systems.
Voltage
100/400 V version
Measuring
voltage
L2
L1
G
L3
N
L3
L2
L1
N
41 2 3
Connection according to the description
of the w-system
Figure 3-4: Measuring inputs - voltage 100/400 V versions
Terminal
Measurement
Description
Amax
1
400V direct
or transfor-
mer ../100V
Measuring voltage L1
2.5 mm²
2
Measuring voltage L2
2.5 mm²
3
Measuring voltage L3
2.5 mm²
4
Neutral point of the 3-phase system/transformer
2.5 mm²
690 V version
Measuring
voltage
L2
L1
G
L3
N
L2
L1
41 2 3
Connection according to the description
of the w-system
5
L3
6
N
Figure 3-5: Measuring inputs - voltage, 690 V version
Terminal
Measurement
Description
Amax
1
690 V direct
Measuring voltage L1
2.5 mm²
2
-N/A-
2.5 mm²
3
Measuring voltage L2
2.5 mm²
4
-N/A-
2.5 mm²
5
Measuring voltage L3
2.5 mm²
6
Neutral point of the 3-phase system/transformer
2.5 mm²

Manual 37139C UMT 1 - Measuring Transducer
Page 12/62 © Woodward
Currrent
WARNING
Before disconnecting the secondary terminals of the transformer or the connection of the transformer
at the control unit ensure that the transformer is short-circuited.
NOTE
Current transformers are secondary and should be connected to ground single-sided.
100/400 V version
Measurement
current
../1 A or ../5 A
s1 (k)
s2 (l) L1
s1 (k)
s2 (l) L2
s1 (k)
s2 (l) L3
G
6 7 9 10 12 13
Detail: Connection
of the transducers
S2 S1
s2 (l)
s1 (k)
s2
L..
.. ..
s1
G
L..
L2
L1
L3
N
Connection according to the description
of the w-system
Figure 3-6: Measuring inputs - current 100/400 V versions
Terminal
Measurement
Description
Amax
6
Transformer
../1 A or
../5 A
Measuring current L1, transformer terminal s2 (l)
2.5 mm²
7
Measuring current L1, transformer terminal s1 (k)
2.5 mm²
9
Measuring current L2, transformer terminal s2 (l)
2.5 mm²
10 Measuring current L2, transformer terminal s1 (k) 2.5 mm²
12
Measuring current L3, transformer terminal s2 (l)
2.5 mm²
13
Measuring current L3, transformer terminal s1 (k)
2.5 mm²
690 V version
Measurement
current
../1 A or ../5 A
s1 (k)
s2 (l) L1
s1 (k)
s2 (l) L2
s1 (k)
s2 (l) L3
G
45 46 47 48 49 50
Detail: Connection
of the transducers
S2 S1
s2 (l)
s1 (k)
s2
L..
.. ..
s1
G
L..
L2
L1
L3
N
Connection according to the description
of the w-system
Figure 3-7: Measuring inputs - current, 690 V version
Terminal
Measurement
Description
Amax
40
Transformer
../1 A or
../5 A
Measuring current L1, transformer terminal s2 (l)
2.5 mm²
41
Measuring current L1, transformer terminal s1 (k)
2.5 mm²
42 Measuring current L2, transformer terminal s2 (l) 2.5 mm²
43
Measuring current L2, transformer terminal s1 (k)
2.5 mm²
44
Measuring current L3, transformer terminal s2 (l)
2.5 mm²
45
Measuring current L3, transformer terminal s1 (k)
2.5 mm²

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 13/62
Outputs
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Analog Outputs (Options A1 to A8)
V
ABCD
Analog output
Analog output
0 V
I
A
A
0 V
Figure 3-8: Analog outputs
Description
Amax
0 to 20 / 4 to 20 / -20 to +20 mA
IA
0 V
A
B
51
50
Analog output 1 Option A2/3/6
1.5 mm²
53 52 Analog output 2 Option A3/6 1.5 mm²
55
54
Analog output 3 Option A3/6
1.5 mm²
82
81
Analog output 4 Option A6
1.5 mm²
84
83
Analog output 5 Option A6
1.5 mm²
87
86
Analog output 6 Option A6
1.5 mm²
0 to 10 / -10 to +10 V
VA
0 V
C
D
51
50
Analog output 1 Option A1/4/8
1.5 mm²
52
Analog output 2 Option A4/8
1.5 mm²
54
53
Analog output 3 Option A4/8
1.5 mm²
55 Analog output 4 Option A4/8 1.5 mm²
82
81
Analog output 5 Option A8
1.5 mm²
83
Analog output 6 Option A8
1.5 mm²
85 84 Analog output 7 Option A8 1.5 mm²
86 Analog output 8 Option A8 1.5 mm²
Pulse Output (Options A1 to A8)
B A
Pulse output
Open collector
+
-
24 V DC
R > 1 kOhm
V
Figure 3-9: Impulse output
Terminal
Description
Amax
A
60
Pulse output (Open Collector):
ON: 30 mA max.; OFF: 27 V
2.5 mm²
B
61

Manual 37139C UMT 1 - Measuring Transducer
Page 14/62 © Woodward
Interface (Options SU)
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
ACA B D E B DC E A B C D E CEA B C D A B D E
GND
Interface RS422 interface Interface RS232 interface
A (non-inverted)
B (inverted)
GND
RTS
RxD
CTS
TxD
Interface RS485 interface MOD bus RTU slave
Z (inverted)
Y (non-inverted)
B (inverted)
A (non-inverted)
GND
Interface CAN bus Interface TTY interface The transmitter drives the current.
RxD +
RxD -
TxD +
TxD -
Termination
NC
GND
CAN-H
CAN-L
DA B C
Interface Profi bus DP
Screen
A-Line
GND
+5 V
E F
B-Line
RTS
Figure 3-10: Interfaces
Terminal
Description
A
(X1)
B
(X2)
C
(X3)
D
(X4)
E
(X5)
RxD
RTS
GND
CTS
TxD
RS-232
A
B
GND
Z
RS-422
B A GND B A RS-485, Modbus RTU Slave
RxD-
RxD+
NC
TxD-
TxD+ TTY (transmitter drives current)
GND
CAN-H
CAN-L
CAN bus
A(X1)
B(X2)
C(X3)
D(X4)
E(X5)
F (X6)
Screen +5 V GND A-Line B-Line RTS
Profibus DP (the file
LEON00D9.GSD has to be used)
NOTE
Please note that the CAN bus must be terminated with an impedance which corresponds to the wave
impedance of the cable (i.e. 120 Ohm resistor).
Shielded Wiring
Interface
CAN bus
CAN-H
CAN-L
GND
Shield
1 MOhm
0.01 uF
400 Vac
Figure 3-11: Shielded wiring

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 15/62
Chapter 4.
Functional Description
Direction of Power
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In the event that the current transformers of the unit are wired according to the wiring picture below, the following
values are displayed:
•Positive generator active power The generator releases active power.
•Inductive generator power factor The generator is overexcited and releases
positive re-active power inductive re-active power.
MAINS
pospos
QQ
PP
indind
GENERATOR
CB
circuit breaker
40
41
UMT 1
X1
S1 (K)
S2 (L)
X2
s2 (l)
x2
x1
s1 (k)
G
Figure 4-1: Direction of power

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Power Factor Definition
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The phasor diagram is used from the generator's view. This defines the following definitions.
Power Factor is defined as a ratio of the real power to apparent power. In a purely resistive circuit, the voltage
and current waveforms are instep resulting in a ratio or power factor of 1.00 (often referred to as unity). In an in-
ductive circuit the current lags behind the voltage waveform resulting in usable power (real power) and unusable
power (reactive power). This results in a positive ratio or lagging power factor (i.e. 0.85lagging). In a capacitive
circuit the current waveform leads the voltage waveform resulting in usable power (real power) and unusable
power (reactive power). This results in a negative ratio or a leading power factor (i.e. 0.85leading).
Inductive: Electrical load whose current waveform lags
the voltage waveform thus having a lagging power fac-
tor. Some inductive loads such as electric motors have a
large startup current requirement resulting in lagging
power factors.
Capacitive: Electrical load whose current waveform
leads the voltage waveform thus having a leading power
factor. Some capacitive loads such as capacitor banks
or buried cable result in leading power factors.
Different power factor displays at the unit:
i0.91 (inductive)
lg.91 (lagging)
c0.93 (capacitive)
ld.93 (leading)
Reactive power display at the unit:
70 kvar (positive)
-60 kvar (negative)
Output at the interface:
+ (positive)
- (negative)
Compared with the voltage, the current is …
lagging
leading
The generator is …
over excited
under excited
Control: If the control unit is equipped with a power factor controller, …
a voltage lower "-" signal is output as long as the meas-
ured value is "more inductive" than the reference set
point
Example: measured = i0.91; set point = i0.95
a voltage raise "+" signal is output as long as the meas-
ured value is "more capacitive" than the reference set
point
Example: measured = c0.91; set point = c0.95

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 17/62
Phasor diagram:
inductive
capacitive

Manual 37139C UMT 1 - Measuring Transducer
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Chapter 5.
Display and Operating Elements
The pressure-sensitive membrane of the front panel consists of a plastic coating. All keys have been designed as
touch-sensitive membrane switch elements. The display is a LC-display, consisting of 2 rows of 16 characters
each, with indirect green lighting. The contrast of the display can be infinitely adjusted via a rotary potentiometer
positioned on the right side of the control.
[ ]
Hz
L1 / L12 L2 / L23 L3 / L31
UMT 1
Measuring Transducer
Reversible Display
Operating
Display Menu
Digit Cursor
Clear
Alarm
Select
14
1/2
131243
5
Figure 5-1: Front panel
Brief Description of LEDs and Push Buttons
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LEDs
1"Wye" Indication of the wye (star) voltages
Nr. Description Function
2"Delta" Indication of the delta voltages
3"Operating" Automatic mode
4"Alarm" Alarm occurred
Push Buttons
12 Display↓Advance to next screen
Nr. Description Function
12 Select Confirm selection
13 Menu Select menu
13 Digit↑Increase the digit
14 Clear Acknowledgement of alarm messages
14 Cursor→Move cursor one position to the right
Miscellaneous
5LC Display LC Display
Nr. Description Function
6Potentiometer Adjust LCD contrast

Manual 37139C UMT 1 - Measuring Transducer
© Woodward Page 19/62
LEDs
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NOTE
If neither of the "Wye" and "Delta" LEDs is illuminated, the first line of the display indicates the wire
current values.
1 "Wye"
Color: Yellow
Indication of the wye voltages
If this LED is illuminated, the values indicated on the display are the wye
(star) voltages (phase-neutral).
2
"Delta"
Color: Yellow
Indication of the delta voltages
If this LED is illuminated, the values indicated on the display are the delta
voltages (phase-phase).
3 "Operation "
Color: Green
Operation
This LED is illuminated constantly when the control unit is in the Automatic
mode. If this LED is flashing, the control is in the configuration mode.
4
"Alarm"
Color: Red
Alarm
This LED illuminates if an alarm condition has occurred.

Manual 37139C UMT 1 - Measuring Transducer
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Push-Buttons
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In order to facilitate the setting of the parameters the buttons are equipped with an "AUTOSCROLL" function
while the controller is in the configuration mode. It permits the user to rapidly advance to the next setting and
configuration screens, the digits, or the cursor position. The "AUTOSCROLL" function will only be enabled
when the user presses and holds the corresponding buttons.
12
Display↓/ Select
Color: none
Display↓/ Select
Automatic mode: Display↓
Configuration:
- By pressing this button, the user advances
through the display of operating (wye voltages, delta voltages,
wire currents) and alarm messages. The "Wye" and "Delta"
LEDs are illuminated accordingly.
Select - By pressing this button, the user advances to the
next configuration screen. If the value originally displayed has
been changed via the "Digit↑" or "Cursor→" push buttons, the
newly set value is saved by pressing the "Select" push button
once. By pressing the button again, the user causes the system
to advance to the next configuration screen.
13
Menu / Digit
↑
Color: none
Menu / Digit
↑
Automatic mode: Menu
Configuration:
- By pressing this button, the user advances through
the messages displayed on the second line of the display. (Var-
ious measured values and any alarm messages that have not
been cleared are indicated.)
Digit↑ - By pressing this button, the position at which the
cursor is presently located is increased by one digit. The in-
crease is restricted by the permissible limits (see list of para-
meters included in Fehler! Verweisquelle konnte nicht ge-
funden werden.). If the highest permissible number has been
reached, the number automatically returns to the lowest per-
missible number.
14
Clear / Cursor →
Color: none
Clear / Cursor →
Automatic mode: Clear
Configuration:
- Individual alarm messages are deleted by pressing
this button provided the fault is no longer present.
Cursor→ - This button moves the cursor one position to the
right. When the cursor reaches the extreme right position it
may be returned to the extreme left position by pressing the
Cursor
→
button again.