11.2.4 Power Card 190
11.2.5 AC Input Busbars 192
11.2.6 Mains Input Terminal Block 194
11.2.7 EMC Shield 196
11.2.8 Brake Terminal Block (Optional) 196
11.2.9 Motor Terminal Block 197
11.2.10 Mixing Fan 198
11.2.11 Power Terminal Mounting Plate 200
11.2.12 Current Sensors 201
11.2.13 Balance/High Frequency Card 203
11.2.14 Gate Drive Card 205
11.2.15 Inrush Card 207
11.2.16 SCR Input Busbars 209
11.2.17 SCRs 209
11.2.18 DC Bus Rails 211
11.2.19 IGBTs 214
11.2.20 Standard DC Capacitors 216
11.2.21 Standard DC Capacitor Bank Layouts 220
11.2.22 Twistlock DC Capacitors 224
11.2.23 Twistlock DC Capacitor Bank Layouts 228
11.2.24 Brake IGBT Module 230
11.2.25 Heat Sink Fan 232
11.2.26 Door Fan 235
11.2.27 Top Fan 237
11.3 D7h/D8h Disassembly and Assembly
240
11.3.1 Removing the Drive from the Extended Options Cabinet 240
11.3.2 Accessing the Heat Sink Fan in D7h/D8h Drives 240
11.3.3 Contactor 242
11.3.4 Disconnect 242
11.4 Heat Sink Access Panel
244
11.4.1 Removing the Heat Sink Access Panel 244
12 Da2/Db2/Da4/Db4 Parallel System Disassembly and Assembly
246
12.1 Before Proceeding
246
12.1.1 Lifting the Unit 247
12.2 Parallel Drive System Disassembly and Assembly
249
12.2.1 Removing the Control Shelf 249
12.2.2 Removing a Drive Module 250
12.2.3 Installing the Drive Modules 251
12.2.4 Installing the Control Shelf 253
12.3 Parallel Drive Module Disassembly and Assembly
255
Contents
VLT
®
FC Series, D1h–D8h, Da2/Db2/Da4/Db4, E1h–E4h, J8/J9
6 Danfoss A/S © 02/2019 All rights reserved. MG94A502