HSP NTG-3000 User manual

HSP GmbH Zum Handwerkerhof 2 90530 Wendelstein Tel. 09129 / 2852-0 Fax: 09129 / 2852-11 Web: www.hsshsp.de EMAIL: [email protected]
NTG-3000 Operating Instructions Version 2.11
Page 1 of 18
NTG-3000
Transducer
Operating Instructions
Document Version 2.11
Software Version 3.8

HSP GmbH Zum Handwerkerhof 2 90530 Wendelstein Tel. 09129 / 2852-0 Fax: 09129 / 2852-11 Web: www.hsshsp.de EMAIL: [email protected]
NTG-3000 Operating Instructions Version 2.11
Page 2 of 18
Versions / Revisions:
Document
version
Creation
date
Author
Description
2.0
2012-07-25
P. Compensis
First official version
2.1
2012-09-17
P. Compensis
Description for software version 3.2
2.2
2012-10-16
P. Compensis
Description for software version 3.2
Distinction between modes 2 and 2+
2.3
2012-02-22
P. Compensis
Description for software version 3.3:
Integrated filters
2.4
2013-03-07
P. Compensis
Specification of software and hardware versions in
the description of the documents validity.
In chapter 7.3 “Measuring inputs” the limitation of
cable length was removed.
Addition of information for filter types.
Addition of graphical display of the algorithm for
second order filters.
Description of the third filter level.
Revision of the connection diagram.
2.5
2013-05-16
B. van Laak
Rotation of the housing by 180 °.
2.6
2013-09-10
C. Aggou
Addition of the “Algorithms”-Section
2.7
2013-11-25
C. Aggou
Addition of the description of the input filter
2.8
2013-12-16
P. Compensis
C. Aggou
Various small corrections
Addition of a diagram of the Cherbyshev-Filter
2.9
2014-04-16
P. Compensis
New Software Version
2.10
2015-03-12
M. Krönert
New Software Version 3.8, chapter 16
2.11
2016-02-08
P. Compensis
Addition of a graphical presentation of the
algorithm for the “Advanced Phase Failure
Detection”

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NTG-3000 Operating Instructions Version 2.11
Page 3 of 18
Contents:
1INTRODUCTION.............................................................................................................4
2SCOPE OF APPLICATION OF THIS DOCUMENT..................................................4
3TRANSPORT AND STORAGE......................................................................................4
4ENVIRONMENT CATEGORY......................................................................................4
5INSTALLATION INSTRUCTIONS...............................................................................4
6CONNECTION.................................................................................................................6
7DESCRIPTION OF DESIGN OF CONNECTIONS.....................................................7
8CONFIGURATION..........................................................................................................8
9LEDS .................................................................................................................................. 9
10 STARTUP..........................................................................................................................9
11 MEASURED VALUE ACQUISITION.........................................................................10
12 FILTER............................................................................................................................12
13 ALGORITHMS...............................................................................................................14
14 DATA TRANSMISSION................................................................................................15
15 ERROR SIGNALING ....................................................................................................15
16 OVERVIEW ABOUT CHANGES................................................................................ 18

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NTG-3000 Operating Instructions Version 2.11
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1Introduction
This transformer is used in power plants. It forms part of a control circuit that acquires actual
values for the currents and voltages of a generator and forwards them to the control unit via
Ethernet/PROFIBUS.
This document describes installation, connection and startup of the transducer.
2Scope of application of this document
These Operating Instructions only apply to transducer NTG-3000.
Software Version >=3.8
Hardware Rev. 5.1
3Transport and storage
3.1 Storage temperature
-20°C to +70°C, maximum rate of change: 20 K/h
IEC 60068-2-1 and IEC 60068-2-2
3.2 Mechanical strength
When stationary: DIN IEC 60068-2-6
Deflection: 0.075 mm (5 - 9 Hz)
Acceleration: 1 m/s2(>9 -200 Hz)
During transport: DIN IEC 60068-2-6
Deflection: 3.5 mm (5 - 9 Hz)
Acceleration: 10 m/s2(>9 -500 Hz)
4Environment category
Environment 2 as per EN 61800-3.
5Installation instructions
The device is designed for installation on a standard DIN mounting rail (DIN EN 60715 TH
35). Other methods of mounting are not permitted.
Permissible mounting position: Horizontal

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NTG-3000 Operating Instructions Version 2.11
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5.1 Installation
The following steps must be performed for installing the device:
5.2 Removal
1. Hook on
2. Swivel off
1. Press upwards
3. Remove
2. Swivel and
click in place

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NTG-3000 Operating Instructions Version 2.11
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6Connection
A protective conductor (PE) and the voltage supply must always be connected (terminal
X100). All other connections are optional for the purposes of operation.
6.1 Connection diagram
2
4
6A
E0
8
C
15
6
9
PROFIBUS
CONFIGURATION
ETHERNET
STATUS
POWER
LINK/
ACTIVITY
SPEED
I L3-
I L3+
I L2-
I L2+
I L1-
I L1+
UL1
UL2
UL3
UN Common
DC2 (0/4..20mA)
Common
DC1 (0/4..20mA)
Common
DC3 (0..10V)
PE
M
+24V
-X500
-X501
-X502
-X503 -X600
-X601
-X602
-X100
-X300
-X200
ERROR
1 2 3
NTG-3000

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NTG-3000 Operating Instructions Version 2.11
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7Description of design of connections
7.1 Connection of protective conductor (PE)
Before the device is placed in operation, a connection must be established between protective
conductor terminal X100/3 and the PE potential of the place of installation.
A flexible PE cable (green/yellow) must be provided with a minimum cross section of
1.5 mm2. The cable should be as short as possible (<2 m).
7.2 Connection of voltage supply
The supply voltage is connected to terminals X100/1 (+24V) and X100/2 (M). The cable
length must be less than 30 m. The device is not equipped with a power switch.
The 24 V DC power supply must be adapted to the input data of the device; see data sheet.
7.3 Measuring inputs
The cables connected to the measuring inputs (terminal strips X500, X501, X502, X503,
X600, X601, X602) must be shielded and as short as possible (cable length above 100 m must
be examined regarding measurement uncertainty). Any power or main voltage cables or any
other cable afflicted by interference shall not be lay parallel to the signal lines. Note the
common EMC planning rules.
7.4 Ethernet interface
An 8P8C modular connector or “RJ-45”(X200) is used for connection to an Ethernet cable in
accordance with the specification 100BASE-TX, IEEE 802.3 Clause 25.
7.5 PROFIBUS interface
The transducer is equipped with a 9-pin D-Sub socket (X300) for connection to PROFIBUS.

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NTG-3000 Operating Instructions Version 2.11
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8Configuration
The transducer must be configured for the connected signals (terminal strips X500 to X503
and X600 to X602) before it is placed in operation for the first time. The 16-position rotary
switch labeled “CONFIGURATION” is used for configuration.
Note: The rotary switch is only evaluated during system startup (when the supply voltage
is connected). Changes can be made to the settings of the rotary switch during operation but
these will have no impact on the system until the next startup.
8.1 Possible switch settings / configurations
The mode is selected using the 16-position rotary switch:
Currents:
DC signals
Mode
3-phase
(I1, I2, I3)
2-phase
(I1, I3)
Setting
1 A
5 A
0 to 20 mA
4 to 20 mA
0
X
X
2
(without debug data)
3-phase
1
X
X
2
(without debug data)
2
X
X
2
(without debug data)
3
X
X
2
(without debug data)
4
X
X
2+
(with debug data)
5
X
X
2+
(with debug data)
6
X
X
2+
(with debug data)
7
X
X
2+
(with debug data)
8
X
X
1
9
X
X
1
A
X
X
1
B
X
X
1
C
X
X
2
(without debug data)
2-phase
D
X
X
2
(without debug data)
E
X
X
2
(without debug data)
F
X
X
2
(without debug data)

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NTG-3000 Operating Instructions Version 2.11
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9LEDs
LED
Description
Color
POWER
Lit when operating voltage is present
Green
STATUS
To indicate operation and errors (see 15.1)
Green
ERROR
To indicate error conditions (see 15.1)
Red
Ethernet Link/Activity
Not lit
No link
Yellow
Lit
Link
Flashing
Activity / network traffic
Ethernet Speed
Not lit
10Base-T
Green
Lit
100Base-TX
10 Startup
The device must be configured as described in Section 8 prior to startup. The supply voltage
can then be connected. Once the initialization phase is complete, cyclic measured value
acquisition starts automatically and, if an Ethernet link is available, the transducer starts to
send a continuous stream of measured values to the permanently programmed target IP
address (see Section 14.1).
At the same time, the values can be queried via the PROFIBUS interface (see Section 14.2).

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NTG-3000 Operating Instructions Version 2.11
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11 Measured value acquisition
11.1Filtering of the analog inputs (U1–3 and I1–3)
The analog inputs (U1–3 and I1–3) are filtered by default. This filtering can be disabled via
the option byte (see NTG 3000 - Data protocol).
The implemented filter is a Chebyshev filter second degree and has the following coefficients:
a0= 0.134121405 a1= 0.268242810 a2= 0.134121405
b1= -0.740464862 b2= 0.276950483
+
+
+
a0
a1
a2
Z-1
Z-1
x
Z-1
Z-1
y
-b2
-b1

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NTG-3000 Operating Instructions Version 2.11
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11.2Scan Rate of the analog inputs
The measured values are read at different rates in the different modes:
Scan Rate
Mode 1
100 µs
2 ms
Mode 2
500 µs
2 ms
Channel
U1
DC1
U2
DC2
U3
DC3
I1
I2
I3
Note: If the analog input filter is enabled, the advanced phase failure detection (see 12.2) and
the rate-of-change filter (see 12.3) are disabled!

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NTG-3000 Operating Instructions Version 2.11
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12 Filter
For the filtered compensated frequency (fcomp filtered) and the filtered effective power (Pfiltered)
there are three filters of second order integrated.
The layout of filter structures will be described in the following chapters.
12.1Layout of filter structures
* depending to the filter parameters, e.g. Butterworth (see section 12.3)
12.2 Algorithm of second order filter
y = b2 ∙x + b1 ∙xk−1 + b0 ∙xk−2 − a1 ∙yk−1 − a0 ∙yk−2
x filter Input
y filter Output
Z-1 clock delay
xk−1 value at filter input with delay of one clock
xk−2 value at filter input with delay of two clocks
yk−1 value at filter output with delay of one clock
yk−2 value at filter output with delay of two clocks
b0...b2
a0...a1 filter parameters
+
+
+
b2
b1
b0
Z-1
Z-1
x
Z-1
Z-1
y
-a0
-a1
2nd order filter
2nd order filter
2nd order filter
2nd order filter
2nd order filter
2nd order filter
fcomp filtered
P
Pfiltered
fcomp
1st filter level *
2nd filter level *
3rd filter level
notch filter

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NTG-3000 Operating Instructions Version 2.11
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12.3 Filter parameters of the first and second filter level
The parameters of the first and second filter level must be parameterized over Profibus (see
section “Settings via PROFIBUS” in the description of protocol for data transmission).
12.4 Fixed filter parameters of the third filter level
The fixed parameters of the third filter level will be switched automatically according to the
parameter f0(rated frequency). Both sets of parameters for the third filter level are integral
part of the firmware and cannot be parameterized over PROFIBUS.
The third filter level (notch filter) is only activated when the basic frequency is parameterized
with 50 Hz or 60 Hz. In other cases the third filter level will be deactivated (filter input =
filter output).
12.4.1 Parameters at f0= 50 Hz, notch filter (third filter level)
b2= 0.961738506 b1= −1.899795818 b0= b2
a1= −1.900784057 a0= 0.924465250
12.4.2 Parameters at f0= 60 Hz, notch filter (third filter level)
b2 = 0.9543227349 b1= −1.8748381111 b0= b2
a1= −1.8762498820 a0= 0.9100572407

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NTG-3000 Operating Instructions Version 2.11
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13 Algorithms
The NTG-3000 is equipped with various algorithms to catch errors and to detect and to
display them.
13.1 Simple Phase Failure Detection
At each system cycle the simple phase failure detection examines, whether the sum of the
phase voltage is within a threshold around zero. If the sum is greater than the threshold,
because one or two phase are cut off, a voltage phase failure is flagged with Bit 1 in the
Error-Byte (see NTG-3000 –Description of Protocol for Data Transmission).
Disadvantage of this phase failure analysis method:
-In three-phase systems the neutral wire has to be connected, otherwise the algorithm
does not work
-The failure of three voltage phases is not recognized
13.2 Advanced Phase Failure Detection
The extended voltage phase failure detection compares at each system-cycle the values of the
individual phases together. In case of failure of one, two or three phases the comparison fails.
Via Bit 2 in the Error-Byte (NTG-3000 –Transducer) an error is displayed via PROFIBUS
and Ethernet.
In this case the algorithm operates as shown on the picture below.
|U1|
|U2|
|U3|
PT1
25ms
LVM
QM
PT1
25ms
0,501124
LVM
QM
Σπ
-8,8764e-3
PT1
25ms
LVM
QM
&
1,5
π
1,5
π
1,5
π
Note: If the analog input filter is enabled (see 11), the advanced phase failure detection (see
12.2) is disabled!

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NTG-3000 Operating Instructions Version 2.11
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13.3 Rate-of-Change-Limiter
The Rate-of-Change-Filter prevents, that the calculated compensated frequency (fcomp gefiltert)
makes a step in case of a phase failure. This cannot physically occur due to the inertia of the
generator. The filter limits the change of the compensated frequency to a value. This value is
calculated by a predetermined parameter (Inertia of the synchronous machine H see NTG-
3000 - Transducer).
The limits are calculated like this:
Max = (Tcycle * 1/H); in which Tcycle specifies the time period, by which the Rate-of-Change-
Limiter algorithm is performed.
Min = -Max
The limited compensated frequency is calculated using the following formula:
Note: If the analog input filter is enabled (see 11), the rate-of-change filter is disabled!
14 Data transmission
14.1 Ethernet
The transducer sends the measured values for all channels to target IP address 192.168.1.100
cyclically in a UDP packet.
14.2 PROFIBUS
The measured values for all channels are transmitted to the PROFIBUS master upon request.
14.3 Data format
A description of the structure of the data transmitted via Ethernet or PROFIBUS can be found
in the document: “Transducer Data Protocol”.
15 Error signaling
Error conditions are indicated by means of the ERROR LED. The exact error types are also
transmitted via Ethernet and PROFIBUS (see document “Transducer Data Protocol”).

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NTG-3000 Operating Instructions Version 2.11
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15.1 Status and error LEDs
STATUS LED
(green)
ERROR LED
(red)
ON
OFF
Normal operation
1 Hz
OFF
System startup (for approx. 2 seconds) or during
initialization of an Ethernet link
2 Hz
5 Hz
PROFIBUS error
5 Hz
ON
Unexpected, serious error
OFF
ON
EEPROM error
ON
ON
Incorrect calibration values
ON
2 Hz
Invalid rotary switch setting = invalid configuration
1 Hz: LED flashes at 1 Hz 2 Hz: LED flashes at 2 Hz 5 Hz: LED flashes at 5 Hz
15.2 Troubleshooting
Error description: The POWER LED (see Section 6) is not lit.
Action: Check the supply voltage (see Section 0).
Error description: The red ERROR LED is not permanently off.
Action: The ERROR LED signals a range of different errors. Please refer to the
table in Section 15.1.
Error description: The green STATUS LED is not permanently lit.
Action: The STATUS LED signals a range of different operating conditions.
Please refer to the table in Section 15.1.
Error description: The transducer is signaling a PROFIBUS error.
Action: Check the PROFIBUS connection between the transducer and the master
(see Section 7.5). Restart the transducer and the master (by temporarily
interrupting the supply voltage, see Section 0).
Error description: The transducer is signaling an “unexpected, serious program error”.
Action: Restart the transducer by temporarily interrupting the supply voltage (see
Section 0).
Error description: Unexpected data have been sent by the transducer
or
the transducer is signaling “Invalid rotary switch setting = Invalid
configuration”.
Action: Check the rotary switch setting (see Section 0).

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NTG-3000 Operating Instructions Version 2.11
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Error description: No data are being received from the transducer via Ethernet.
Action: Check the IP address of the receiver (see Section 13) and the Ethernet
cable connection (see Section 7.4).
Error description: The PROFIBUS master cannot connect to the transducer.
Action: Check the slave address and check that the correct GSD file has been
selected (see document “Transducer Data Protocol”).
Error description: The transducer is signaling “EEPROM error” or “Incorrect
calibration values”.
Action: Return the device to the manufacturer.

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NTG-3000 Operating Instructions Version 2.11
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16 Overview about changes
16.1 Version 3.7 to Version 3.8
Error correction in the advanced phase of failure detection.
Adapting of the configuration of the Ethernet-module for controlling YELLOW-LED due to the
change of module from KSZ8051MLL to KSZ8081MLX.