4
9.2.1 Environment ................................................................................................................................ 171
9.2.2 Voltage ......................................................................................................................................... 171
9.2.3 Keypad Monitor ......................................................................................................................... 171
9.2.4 Enclosure ..................................................................................................................................... 171
9.2.5 Main Circuit ................................................................................................................................. 172
9.2.6 Main Circuit- Terminals & Cables ........................................................................................... 172
9.2.7 Main Circuit- Capacitors ........................................................................................................... 172
9.2.8 Main Circuit- Resistors .............................................................................................................. 173
9.2.9 Main Circuit- Magnetic Contactors & Relays ...................................................................... 173
9.2.10 Control Circuit- Control Boards & Connectors ................................................................. 173
9.2.11 Cooling- Fans ........................................................................................................................... 174
9.2.12 Cooling- Air Duct ..................................................................................................................... 174
9.3 Drive Cooling Fans ................................................................................................................................ 174
9.3.1 Cooling Fan Replacement ........................................................................................................ 174
9.3.2 Removing Cooling Fan ............................................................................................................. 175
Chapter 10│Drive Derating............................................................................................................................... 176
10.1 Temperature Derating ....................................................................................................................... 176
10.2 Altitude Derating ................................................................................................................................ 176
Chapter 11│Communications .......................................................................................................................... 177
11.1 Modbus Communication Specifications ....................................................................................... 177
11.2 Connecting to Controller/PLC/HMI ................................................................................................ 177
11.2.1 Communication Cable Connection ..................................................................................... 177
11.3 Modbus Setup Parameters ............................................................................................................... 178
11.4 Drive Operations by Modbus .......................................................................................................... 179
11.4.1 Actions by Modbus ................................................................................................................. 179
11.4.2 Drive Control by Modbus ...................................................................................................... 179
11.5 Message Format ................................................................................................................................. 180
11.5.1 Message Content .................................................................................................................... 180
11.5.2 Message Configuration.......................................................................................................... 180
11.5.3 Slave Station Address ............................................................................................................. 180
11.5.4 Function Code .......................................................................................................................... 180
11.5.5 Data ............................................................................................................................................ 180
11.5.6 Error Check ................................................................................................................................ 181
11.5.7 Command Data ........................................................................................................................ 181
11.5.8 Response Message ................................................................................................................. 182
11.6 Example of Reading / Responding Data........................................................................................ 182
11.7 Modbus Data ....................................................................................................................................... 184
11.8 Communication Errors ...................................................................................................................... 188
11.8.1 Modbus Errors .......................................................................................................................... 188
11.8.2 Slave Response ..................................................................................................................... 189