SENECA T201DCH100-OPEN Series Current Transformers Installation Guide

SENECA T201DCH100-OPEN Series Current Transformers

Product Information

PRELIMINARY WARNINGS

The word WARNING preceded by the symbol indicates conditions or actions that put the user’s safety at risk. The word ATTENTION preceded by the symbol indicates conditions or actions that might damage the instrument or the connected equipment. The warranty shall become null and void in the event of improper use or tampering with the module or devices supplied by the manufacturer as necessary for its correct operation, and if the instructions contained in this manual are not followed.

CONTACT INFORMATION

• Technical support support@seneca.it
• Product information sales@seneca.it

This document is the property of SENECA srl. Copies and reproduction are prohibited unless authorised. The content of this document corresponds to the described products and technologies. Stated data may be modified or supplemented for technical and/or sales purposes.

MODULE LAYOUT

SIGNALS VIA LED ON THE FRONT PANEL

INSTALLATION REGULATIONS

• Remove the locking pin to allow the instrument to be opened. When using for the first time, the instrument will not be blocked by the pin.
• Position the reading instrument using the DIN rail or the clamps. The reading direction of the instrument is indicated in the reference drawing above.
• Close the instrument using the locking pin. Apply sufficient pressure to engage the upper half core with the locking lugs.

CAUTION: Make sure that the direction of the current flowing through the cable is that shown in the figure (incoming). To increase the sensitivity of the current measurement, insert the cable several times into the central hole of the instrument, creating a series of loops. The sensitivity of the current measurement is proportional to the number of passages of the conductors in the hole, if the loops are not homogeneously distributed a reading error could occur.

TECHNICAL SPECIFICATIONS

CERTIFICATIONS|
---|---
POWER SUPPLY| Voltage: on Vcc and GND terminals, 11.5 – 28 Vdc; Absorption: Typical: 38 mA (LOAD EXCLUDED)
INSULATION| Using an insulated conductor, its sheath determines the insulation voltage. An insulation of 3 kVac is guaranteed on bare conductors
ENVIRONMENTAL CONDITIONS| Temperature :                 -25 ÷ + 70°C

Humidity :                      10% ÷ 90% non condensing.

Altitude: __ Up to 2000 m above sea level

Storage temperature: -40 ÷ + 85°C

Protection rating: IP20.

ASSEMBLY| DIN rail 35 mm IEC EN60715 or fixing with plastic ties.
CONNECTIONS| Removable 5-way screw terminals, 5 mm pitch for cables up to 2.5 mm2 micro USB (FOR CONFIGURATION ONLY)
COMMUNICATION PORT| RS485 serial port on terminals A+ and B-; or on USB port
INPUT (on 36 mm through hole)| Type of measurement :    AC/DC TRMS or DC Bipolar

Crest factor :                   2

Pass-band: 1 kHz

Overload: __ 2000 A impulsive, 3 x IN continuing

CAPACITY| AC/DC True RMS (DIP7=OFF)| DC Bipolar (DIP7=ON)
T201DCH100-OPEN| 50A or 100A| ±50A or ±100A
T201DCH300-OPEN| 150A or 300A| ±150A or ±300A
T201DCH600-OPEN| 300A or 600A| ±300A or ±600A
ANALOGUE OUTPUT

on Vout and GND terminals

| Type : 0 ÷ 10 Vdc, minimum load RLOAD =2 kΩ.

Protection : Reverse polarity protection and over voltage protection

Resolution: 13 bit (10000 points)

EMI error: < 0.5%

Temperature coefficient : < 200 ppm/°C

Hysteresis on measurement : 0.2% of full scale

Response speed: With “Fast” filter 800 ms. With “Slow” filter 2000 ms.

The type of output can be selected via software

DIGITAL OUTPUT| Type : active, 0- Vcc, maximum load 50 mA

The type of output can be selected via software

ACCURACY| below 2% of full scale| above 2% of full scale
T201DCH100-OPEN| 1% of full scale at 50/60 Hz, 23°C| 0.5% of full scale at 50/60 Hz, 23°C
T201DCH300-OPEN| 2% of full scale at 50/60 Hz, 23°C| 1% of full scale at 50/60 Hz, 23°C
T201DCH600-OPEN
OVERVOLTAGE CATEGORIES| Bare conductor: CAT. III 300 V

Insulated conductor: CAT. III 600 V

USB PORT

The module is designed to exchange data according to the modes defined by the MODBUS protocol. It has a micro USB connector and can be configured using applications and/or software programs. The USB communication has priority over the RS485 communication. The USB serial port uses the following communication parameters: 38400,8,N,1 The USB communication port responds exactly like the RS485 port with the exception of the communication parameters. During the use of the USB port, the 485 bus will be inactive; it will reactivate automatically a few seconds after the release of the USB port. EASY SETUP is the software to use for the configuration. For further information go to the website on the cover.

SETTING THE DIP-SWITCHES
The position of the DIP switches defines the Modbus communication parameters of the module: Address and Baud Rate. The following table shows the Baud Rate and Address values according to the DIP- SWITCH setting:

Note: When DIP switches 3 to 8 are OFF, the communication settings are taken from programming (EEPROM).

ELECTRICAL CONNECTIONS

ANALOGUE OUTPUT BEHAVIOUR

AC/DC TRUE RMS

DC BIPOLAR

SENECA s.r.l.; Via Austria, 26 – 35127 – PADOVA – ITALY;
Tel. +39.049.8705359
Fax +39.049.8706287

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