BENSHAW RediStart RB2 User Manual

7.8 Wye Delta Starter .............................................160
7.9 Across The Line (Full Voltage Starter) .................................163
7.10 Single Phase Soft Starter ........................................164
7.11 Phase Control ..............................................165
7.11.1 Master/Slave Starter Configuration:....................................166
7.12 Current Follower ............................................167
7.13 Start/Stop Control Logic ........................................168
7.14 Hand/Off/Auto Selector Switch ...................................169
7.15 Simplified I/O Schematics .......................................170
7.16 Remote Modbus Communications ..................................171
7.16.1 Supported Commands............................................171
7.16.2 Modbus Register Addresses ........................................171
7.16.3 Cable Specifications .............................................171
8 TROUBLESHOOTING & MAINTENANCE .............................174
8.1 Safety Precautions ............................................174
8.2 Preventative Maintenance ........................................174
8.2.1 General Information..............................................174
8.2.2 Preventative Maintenance ..........................................174
8.3 General Troubleshooting Charts ....................................175
8.3.1 Motor does not start, no output to motor ..................................175
8.3.2 During starting, motor rotates but does not reach full speed ......................176
8.3.3 Starter not accelerating as desired .....................................176
8.3.4 Starter not decelerating as desired......................................177
8.3.5 Motor stops unexpectedly while running .................................177
8.3.6 Metering incorrect ...............................................178
8.3.7 Other Situations ................................................179
8.4 Fault Code Table .............................................180
8.5 SCR Testing ................................................187
8.5.1 Resistance....................................................187
8.5.2 Voltage .....................................................187
8.5.3 Integral Bypass.................................................187
8.6 Built In Self Test Functions .......................................188
8.6.1 Standard BIST Tests: .............................................188
8.6.2 Powered BIST Tests: .............................................189
8.7 SCR Replacement .............................................191
8.7.1 Typical Stack Assembly............................................191
8.7.2 SCR Removal..................................................191
8.7.3 SCR Installation ................................................191
8.7.4 SCR Clamp ...................................................192
8.7.5 Tightening Clamp ...............................................192
8.7.6 Testing SCR...................................................192
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TABLE OF CONTENTS

BENSHAW RediStart RB2 Specifications

General

Brand	BENSHAW
Model	RediStart RB2
Category	Controller
Language	English