Sincro SK160 LB User Manual

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S

ERIE

SK160

Manuale di uso e manutenzione

Use and Maintenance manual

Manuel d’utilisation et de maintenance

Bedienungs- und Wartungsanleitungen

Manual de uso y mantenimiento

103660

REV02

09/2018

Table of Contents

Questions and Answers:

J
Jeffery ScottAug 9, 2025
What to do if my Sincro SK160 LB has no voltage?
- P
  Patrick MorrowAug 9, 2025
  If your Sincro Inverter shows no voltage, several issues could be the cause. First, check all connections to ensure they are secure. A faulty AVR could be the problem; check the fuse and consider replacing the AVR. Also, inspect the rectifier bridge. An open stator exciter circuit or a main winding fault could also be responsible; check the stator/rotor windings resistances and insulation. In some cases, the machine may be demagnetized; excite the alternator by applying a 6-12 voltage across the exciter terminals for a second, respecting the polarities while the engine is running.
K
Kimberly GriffinAug 16, 2025
Why is my Sincro SK160 LB Inverter voltage so low?
- C
  Corey TaylorAug 16, 2025
  If your Sincro Inverter is showing low voltage, try these steps: * Adjust the voltage using the potentiometer «V» on the AVR to set the reference voltage to the desired value. * Check and adjust the under-frequency protection value for the nominal frequency (50Hz or 60Hz). * Verify the engine speed to ensure it is correct, as a low engine speed can cause low voltage. * If these steps don't work, the AVR may be faulty and need replacement.
D
Dr. Nathaniel TaylorAug 25, 2025
What causes high voltage in a Sincro SK160 LB Inverter?
- T
  thompsondeborahAug 25, 2025
  If your Sincro Inverter is producing high voltage, the issue may stem from several causes. Begin by adjusting the voltage with the potentiometer «V» on the AVR to ensure the reference voltage is correctly set. Check the sensing connections to rule out an open circuit. If the problem persists, the AVR may be faulty and require replacement.
R
Ryan DiazSep 1, 2025
How to fix unstable voltage on a Sincro Inverter?
- O
  odavisSep 1, 2025
  If your Sincro Inverter's voltage is unstable, there are a few things you can check. First, make sure the AVR stability is correctly set by checking the correct Dip switches position and adjusting stability with the ST trimmer. Also, check for oscillations in engine speed using a frequency meter. If these steps don't resolve the issue, the AVR may be faulty and need to be replaced.

Sincro SK160 LB Specifications

General

Input Voltage	230 V
Frequency	50/60 Hz
Output Current Range	10-160 A
Duty Cycle	60% at 160 A
Electrode Size	1.6 - 4.0 mm
Efficiency	85%
Protection	IP21S
Weight (Alternative)	5.5kg

Summary

Safety Recommendations

General Safety Symbols and Warnings

Explains symbols for risk, hazard, severe injury, and death.

Intended Use

Operating Principle and Characteristics of Voltage Regulation System

General Mechanical and Electrical Specifications for Coupling with Engine

Installation

Generator Lifting Procedures

Instructions for safe lifting and handling of the generator using lugs or pallets.

Mounting Generator to Engine

Guidelines for mounting the generator onto the engine, including tightening torques.

Mechanical Connection Tightening Torques

Electrical Connections and Earthing

Proper methods for electrical connections and mandatory earthing procedures.

Pre-Installation Checks

Electrical Insulation Resistance Test

BL4-U AVR Settings and Operation

Detailed guide for setting and adjusting the BL4-U AVR parameters.

RD2 AVR Settings and Operation

Instructions for setting and adjusting the RD2 AVR parameters.

Initial Start-Up Procedure

Aftersales Assistance and Maintenance

Routine Checks and Procedures

Outlines regular checks for windings, insulation, diodes, and bearings.

Component Removal and Replacement Procedures

Detailed steps for removing and replacing bearings, rotor, diodes, fan, and exciter.

Troubleshooting Common Faults

Table of common faults, possible reasons, and remedies.

Dismantling and Disposal

Spare Parts and Aftersales

Aftersales Support and Contact Information

Details on obtaining assistance, contact info, and return procedures.

Warranty

Warranty Period and Conditions

Defines warranty duration, coverage exclusions, and conditions.

Appendix B: Wiring Diagrams

AVR BL4-U Wiring Diagrams

AVR RD2 Wiring Diagrams

Appendix C: Exploded View

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