Signaltec TPS II Installation Manual

MA TPS II, Ver. 1.3 1 11/2018

SIGNALTEC GmbH, Reutersbrunnenstrasse 27, D-90429 Nürnberg, GERMANY, T. [phone], F. [phone], Email: [e-mail], Web: www.signaltec.com

TPS II
Single Channel Current Transducer System

Installation Manual

MA TPS II, Ver. 1.3 2 11/2018

SIGNALTEC GmbH, Reutersbrunnenstrasse 27, D-90429 Nürnberg, GERMANY, T. [phone], F. [phone], Email: [e-mail], Web: www.signaltec.com

Contents

1. Introduction

2. Receiving of goods

3. Hardware Installation

3.1. Connection of the current sensor to the TPS rack

3.2 . Connection of the current output to an instrument current input terminal

3.3 . Connection of the optional voltage output to an instrument voltage input terminal

4. Operating instructions

5. Scaling

5.1. Current output ratio

5.2 . Sensor output ratio when using the passive plug-on resistors

5.3 . Sensor output ratio when using the active plug-on voltage amplifiers

6. Status readout interface

6.1. Pin-out of the 25-pole D-SUB

7. Specifications

7.1 . Rack specifications

7.2 . Transducer specifications

7.2.1. Transducers with rms-range

7.2.2. Transducers with peak-range

7.3. Connection cable specifications

7.3.1. Standard Connection Cables

7.3.2. Total Measuring Resistance at Full Scale

7.3.3. Maximum Burden Resistor depending on Transducer and Connection Cable

7.4. Burden module specifications

7.4.1. Passive plug-on burden resistor specifications

7.4.2. Active plug-on voltage amplifier specifications

8. Switching off and deinstallation

9. Accessories

MA TPS II, Ver. 1.3 3 11/2018

SIGNALTEC GmbH, Reutersbrunnenstrasse 27, D-90429 Nürnberg, GERMANY, T. [phone], F. [phone], Email: [e-mail], Web: www.signaltec.com

1. Introduction
The TPS is a single channel power supply for the LEM IT- and IN-current transducers, mainly used for the range

extension of power meters and other instruments. The current output terminals deliver the transducer output
current on the back panel. Passive plug-on burden resistors and active plug-on voltage amplifiers are available
as an option. The status-readout-interface delivers the transducer status (ok or overload/error) by means of
internal galvanic isolated relay contacts.

Warning
Please be aware that an unsupplied transducer or a transducer used with open output can be destroyed. The
same can happen if a transducer is heavily overloaded. Power and transducer status is visible on the front panel.
The status-readout-interface on the back panel can be used to switch off the primary current in case the transducer
is overloaded, the TPS power is off or the output loop is interrupted. All these events will change the transducer
status to error on the front panel led and the status-readout-interface. There is more information about the status­readout-interface available in chapter 6.

2. Receiving of goods
The TPS system is able to power one transducer of the LEM IT- and IN-series. A multi channel transducer system

MCTS is available either. There are various transducer types available from 60 A up to 2000 A. Connection cables
are available in different lengths. Passive plug-on shunts and active plug-on voltage modules are available as an
option. A status-readout cable and different current and voltage output cables are available as options too.

Please compare your order papers with our packing list and the received goods.

MA TPS II, Ver. 1.3 4 11/2018

SIGNALTEC GmbH, Reutersbrunnenstrasse 27, D-90429 Nürnberg, GERMANY, T. [phone], F. [phone], Email: [e-mail], Web: www.signaltec.com

3. Hardware Installation
The TPS is delivered as a desktop unit. 19" rack mounting brackets are available as an option. The mounting

brackets can be installed easily with four screws on the left and the right side panel. The 19" rack mounting
brackets including the screws have to be ordered separately.

3.1. Connection of the current sensor to the TPS rack

The current transducer will be connected to the TPS rack with the
delivered D-SUB current transducer connection cable.

3.2. Connection of the current output to an instrument current input terminal

The transducer output current can be directly connected to the
current input terminals of a current or a power meter.

3.3 . Connection of the optional voltage output to an instrument voltage input terminal

Before you connect the current output to the voltage input terminal
of a voltage meter or the sensor input terminal of a power meter you
have to transfer the output current to a voltage signal. For this
purpose, passive plug-on burden resistors and active plug-on output
voltage amplifiers are available.

MA TPS II, Ver. 1.3 5 11/2018

SIGNALTEC GmbH, Reutersbrunnenstrasse 27, D-90429 Nürnberg, GERMANY, T. [phone], F. [phone], Email: [e-mail], Web: www.signaltec.com

4. Operating instructions
Before you switch on the primary current through the current transducer, be sure that the transducer is powered

by the TPS rack and that the output current loop is closed. An unsupplied transducer can be damaged as well as
a sensor with open current output loop. The power and transducer status (ok or error/overload) are visible on the
front panel and available on the status-readout interface (see chapter 6).

Power-LED off: TPS switched off or internal power supply defective
Power-LED green: TPS on
Status-LED off: TPS switched off or internal power supply defective
Status-LED green: Transducer connected, normal operation
Status-LED red: Transducer overloaded or interruption in output current loop, switch primary current off!

Example: Transducer powered but overloaded, damaged or current output loop open.