86Protecting the motor cables against thermal overload ....................................
86Protecting the motor against thermal overload .............................................
87Protecting the motor against overload without thermal model or temperature sensors .
87Protecting the drive and the input power cable in short-circuits .............................
87Protecting the drive against thermal overload .................................................
88Protecting the input power cable against thermal overload ..................................
88Implementing a motor temperature sensor connection ......................................
88Connecting motor temperature sensor to the drive via an option module .............
89Protecting the drive against ground faults ......................................................
89Residual current device compatibility ........................................................
89Implementing the Emergency stop function ....................................................
89Implementing the Safe torque off function .....................................................
90Implementing the undervoltage control (Power-loss ride-through) .........................
90Implementing the functions provided by the FSO-xx safety functions module ............
90Using power factor compensation capacitors with the drive .................................
90Using a safety switch between the drive and the motor ......................................
91Implementing an ATEX-certified motor thermal protection ...................................
91Controlling a contactor between drive and motor .............................................
91Implementing a bypass connection .............................................................
92Example bypass connection ..................................................................
92Switching the motor power supply from drive to direct-on-line .......................
93Switching the motor power supply from direct-on-line to drive .......................
93Protecting the contacts of relay outputs ........................................................
8 Electrical installation
95Contents of this chapter ...........................................................................
95Safety ................................................................................................
95Grounding the motor cable shield at the motor end ..........................................
96Measuring the insulation ..........................................................................
96Measuring the insulation of the drive ........................................................
96Measuring the insulation of the input power cable ........................................
96Measuring the insulation of the motor and motor cable ..................................
96Grounding system compatibility check ..........................................................
97Corner-grounded and midpoint-grounded delta systems .................................
97Identifying the grounding system of the electrical power network .......................
98
When to disconnect EMC filter and ground-to-phase varistor: TN-S, IT, corner-
grounded delta, and midpoint-grounded delta systems ..................................
98Guidelines for installing the drive to a TT system .........................................
99Disconnecting instructions ....................................................................
99Connecting the power cables ....................................................................
100Power cable connection diagram ............................................................
102Preparing the cable ends and making 360-degree grounding at the cable entry .....
103Power cable connection procedure ..........................................................
104Connecting the control cables to the integrated control unit .................................
105Connecting external power supply wires to the control units ............................
106Connecting a control panel .......................................................................
106Connecting a remote panel, or chaining one panel to several drives ......................
107Connecting a PC ...................................................................................
107Installing option modules .........................................................................
108Option slot 2 (I/O extension modules) .......................................................
109Option slot 1 (fieldbus adapter modules) ...................................................
109Wiring the optional modules ..................................................................
8 Table of contents