Danfoss VLT AutomationDrive FC 300 Series - Page 5

6.1.1 Safety Requirements of Mechanical Installation 107
6.1.2 Mechanical Mounting 110
7 Electrical Installation
112
7.1 Connections- Frame Sizes A, B and C
112
7.1.1 Removal of Knockouts for Extra Cables 113
7.1.2 Connection to Mains and Earthing 113
7.1.3 Motor Connection 115
7.1.4 Relay Connection 121
7.2 Fuses and Circuit Breakers
122
7.2.2 Recommendations 122
7.2.3 CE Compliance 123
7.3 Disconnectors and Contactors
131
7.3.1 Mains Disconnectors 131
7.4 Additional Motor Information
132
7.4.1 Motor Cable 132
7.4.2 Motor Thermal Protection 132
7.4.3 Parallel Connection of Motors 132
7.4.5 Motor Bearing Currents 135
7.5 Control Cables and Terminals
136
7.5.1 Access to Control Terminals 136
7.5.2 Control Cable Routing 136
7.5.3 Control Terminals 137
7.5.4 Switches S201, S202, and S801 137
7.5.5 Electrical Installation, Control Terminals 138
7.5.6 Basic Wiring Example 138
7.5.7 Electrical Installation, Control Cables 140
7.5.8 Relay Output 141
7.6 Additional Connections
142
7.6.1 DC Bus Connection 142
7.6.2 Load Sharing 142
7.6.3 Installation of Brake Cable 142
7.6.4 How to Connect a PC to the Frequency Converter 142
7.6.5 PC Software 143
7.7 Safety
143
7.7.1 High Voltage Test 143
7.7.2 Earthing 143
7.7.3 Safety Earth Connection 144
7.7.4 Spark Free Installation 144
7.8 EMC-correct Installation
144
7.8.1 Electrical Installation - EMC Precautions 144
Contents
VLT
®
AutomationDrive FC 300 Design Guide, 0.25-75 kW
MG33BE02 - VLT
®
is a registered Danfoss trademark 3
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