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Seneca S91 Installation Manual

Multi-protection relay for motors
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INSTALLATION MANUAL
S91 / S91-400
Multi-protection relay for motors
EN
SENECA s.r.l.
Via Austria, 26 – 35127 – PADOVA – ITALY
Tel. +39.049.8705355 - 8705359 - Fax +39.049.8706287
For manuals in other languages, configuration software and accessories,
visit www.seneca.it/products/s91
MI00536-5-EN
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Summary of Contents for Seneca S91

  • Page 1 INSTALLATION MANUAL S91 / S91-400 Multi-protection relay for motors SENECA s.r.l. Via Austria, 26 – 35127 – PADOVA – ITALY Tel. +39.049.8705355 - 8705359 - Fax +39.049.8706287 For manuals in other languages, configuration software and accessories, visit www.seneca.it/products/s91 MI00536-5-EN...

  • Page 2: Module Layout

    WARNING: The full content of this manual must be read before any operation. The module must only be used by qualified electricians. Specific documentation is available at www.seneca.it/products/s91 The module must be repaired and damaged parts replaced by the Manufacturer.

  • Page 3: Technical Specifications

    0.5 Nm tightening torque CONNECTIONS 195 ÷ 255 Vac oltage: Rated v (S91) / 400 Vac ± 10 % (S91-400) 50 - 60 Hz ± 5% POWER SUPPLY Rated frequency: Maximum absorbed power: 1.5 W ype of insertion: Direct or through an Ammeter Transformer Rated operational current (le): 16 Aac Current measurement limits: 0.1 ÷...

  • Page 4: General Description

    GENERAL DESCRIPTION Protection device for electric motors capable of detecting the wrong sequence of phases, the lack of a phase, the excess of absorbed current and the no-load operation with the measurement of the power factor. It is also equipped with a PTC input for the protection of the motor from over temperature and an enabling input to start the motor.
  • Page 5 ENABLE INPUT The device is equipped with an enable input that allows you to activate/deactivate the motor. During the first start-up or if there are no alarms, the absence of the enable signal causes the "-" symbol to appear on the display and the motor control relay to de-energize.

  • Page 6: Electrical Connections

    WARNING: input not isolated from the mains THREE-PHASE MOTOR WITH THREE-PHASE MOTOR WITH CURRENT DIRECT CURRENT MEASUREMENT MEASUREMENT WITH AMMETER TRANSFORMER +t° +t° 230 Vac (S91) 230 Vac (S91) A2 A1 A2 A1 400 Vac (S91-400) 400 Vac (S91-400) ON /...

  • Page 8: Contact Information

    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.

This manual is also suitable for:

S91-400

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