xvi
Periodic Inspection ......................................................................................................... 8-2
Periodic Maintenance of Parts ....................................................................................... 8-3
Procedure for Adjusting Constants after Replacement of Control Board ....................... 8-3
Types and Number of Cooling Fans Used in the Drive .................................................. 8-5
Cooling Fan Replacement Outline ................................................................................. 8-6
Circulation Fan Replacement Outline........................................................................... 8-16
Removing and Mounting the Control Circuit Terminal Board ....................................... 8-21
9 Specifications ..........................................................................9-1
Standard Inverter Specifications................................................................... 9-2
Specifications by Model.................................................................................................. 9-2
Common Specifications.................................................................................................. 9-4
Specifications of Options and Peripheral Devices........................................ 9-6
10 Appendix ................................................................................10-1
Varispeed G7 Control Methods .................................................................. 10-2
Control Methods and Features..................................................................................... 10-2
Control Methods and Applications................................................................................ 10-4
Inverter Application Precautions ................................................................ 10-6
Selection....................................................................................................................... 10-6
Installation .................................................................................................................... 10-7
Settings ........................................................................................................................ 10-7
Handling ....................................................................................................................... 10-8
Motor Application Precautions ................................................................... 10-9
Using the Inverter for an Existing Standard Motor........................................................ 10-9
Using the Inverter for Special Motors ......................................................................... 10-10
Power Transmission Mechanism (Speed Reducers, Belts, and Chains) ................... 10-10
Conformance to UL Standard................................................................... 10-11
Conformance to CE Markings .................................................................. 10-13
CE Markings............................................................................................................... 10-13
Requirements for Conformance to CE Markings........................................................ 10-13
Wiring Examples ...................................................................................... 10-20
Using a Braking Resistor Unit .................................................................................... 10-20
Using a Braking Unit and Braking Resistor Unit......................................................... 10-21
Using Braking Units in Parallel ................................................................................... 10-22
Using a Braking Unit and Three Braking Resistor Units in Parallel............................ 10-23
Using a VS Operator .................................................................................................. 10-24
Using Transistors for Input Signals and a 0-V Common in Sinking Mode with an
Internal Power Supply ................................................................................................ 10-25
Using Transistors for Input Signals and a +24-V Common in Sourcing Mode ........... 10-26
Using Transistors for Input Signals and a 0-V Common in Sinking Mode with an
External Power Supply ............................................................................................... 10-27
Using Contact and Open Collector Outputs ............................................................... 10-28
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