84Protecting the contacts of relay outputs .......................................................
85Implementing a motor temperature sensor connection .....................................
6 Electrical installation
87Contents of this chapter ..........................................................................
87Warnings ...........................................................................................
87Attaching the device stickers on the cabinet door ...........................................
88Layout of the cable entries (frames R6 to R9) ................................................
89Layout of the cable entries (frames R10 and R11) ...........................................
90Connecting the power cables ...................................................................
90Connection diagram ..........................................................................
91Checking the insulation of the drive system ...............................................
91Checking the insulation of the input cable .................................................
91
Checking the compatibility with IT (ungrounded), corner-grounded delta, midpoint-
grounded delta, and TT systems ............................................................
91Ground-to-phase varistor .................................................................
91
When to disconnect the ground-to-phase varistor: TN-S, IT, corner-grounded
delta and midpoint-grounded delta systems ...........................................
92Guidelines for installing the drive to a TT system .....................................
93Identifying different types of electrical power systems ...............................
94Disconnecting the EMC filter and ground-to-phase varistor (R6 to R9) ...........
94Disconnecting the ground-to-phase varistor (R10 and R11) ........................
96Connecting the motor cable at the motor end .............................................
96Checking the insulation of the motor and motor cable ...............................
96Connection procedure (IEC, frames R6 to R9) ...........................................
100Connection procedure (IEC, frames R10 and R11) ......................................
104Connecting the control cables ..................................................................
104Overview of control cable connection procedure .........................................
105Grounding the outer shields of the control cables at the cabinet entry ................
107Routing the control cables inside the cabinet .............................................
108Connecting external wiring to the control unit or optional I/O terminal block .........
109Connecting the emergency stop push buttons (options +Q951 and +Q963) .........
109Connecting the Safe torque off circuit ......................................................
110Connecting external power supply wires for the cabinet heater (option +G300) .....
111Setting the voltage range of the auxiliary control voltage transformer (T21) .............
111Connecting a PC ..................................................................................
112Installing option modules ........................................................................
112Option slot 2 (I/O extension modules) ......................................................
113Option slot 1 (fieldbus adapter modules) ..................................................
113Wiring the optional modules .................................................................
7 Control unit
115Contents of this chapter ..........................................................................
115Layout ..............................................................................................
117Default I/O connection diagram .................................................................
118Option +E205 in frames R10 and R11: DI6 internal overtemperature supervision ...
118Power supply connections for PNP with option +L504 ...............................
119Power supply connections for NPN with option +L504 ...............................
119Power supply connections for PNP without option +L504 ...........................
119Power supply connections for NPN without option +L504 ...........................
120Changing internal overtemperature supervision from DI6 to another digital input .
8 Table of contents
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