WEG CFW900 - Power and Grounding Wiring

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INSTALLATIONANDCONNECTION

Figure3.10:BRterminalprotectionforDClinksupply-frameC

3.2.2PowerandGroundingWiring

WARNING!

Whenpowerandgroundconnectionsaremadewithﬂexiblecables,itisnecessarytousesuitable

terminals.

WARNING!

Sensitiveequipment,suchasPLCs,temperaturecontrollersandthermocouplecables,shouldbeat

least0.25metersawayfromthefrequencyinvertersandcablesconnectingtheinvertertothemotor.

DANGER!

Wrongcableconnection:

Theinverterwillbedamagedincasetheinputpowersupplyisconnectedtotheoutputterminals

(U/T1,V/T2,orW/T3)

Checkalltheconnectionsbeforepoweringuptheinverter.

IncaseofreplacinganexistinginverterbyaCFW900,checkiftheinstallationandwiringisaccording

totheinstructionslistedinthismanual.

✓

NOTE!

ThewiregaugeslistedinTable3.4areorientativevalues.Installationconditionsandthemaximum

permittedvoltagedropmustbeconsideredfortheproperwiringsizing.

20|CFW900

Main Page

Table of Contents5
Safety Instructions8
Safety Warnings in this Manual8
Safety Warnings in the Product8
Preliminary Recommendations8
General Information10
About the Manual10
Terms and Definitions10
About the Cfw90012
Identification Labels15
Receiving and Storage16
Installation and Connection18
Mechanical Installation18
Environmental Conditions18
Positioning and Mounting18
Horizontal Mounting20
Cabinet Mounting21
Surface Mounting21
Flange Mounting21
Access to Control and Power Terminals22
HMI Installation at the Cabinet Door or Command Panel (Remote HMI)24
Electrical Installation24
Identification of the Power and Grounding Terminals25
Power and Grounding Wiring27
Fuses, Circuit Breakers and Power Supply Capacity32
Pre-Charge Circuit Control Fuses36
Power Connections36
And Delta Corner Earthed Networks37
Dynamic Braking38
Sizing the Braking Resistor39
Installation of the Braking Resistor40
Output Connections41
Motor Cables42
Connection of the Motor Cable Shield to Ground43
Grounding Connections44
Control Connections45
Internal 24 VDC Power Supply Current Capacity49
Use of a 24 VDC External Power Supply50
Installation According to the European Directive of Electromagnetic52
Compatibility52
Standard Definitions52
Conformal Installation53
Emission and Immunity Levels Met53
Hmi54
Main Screen55
Menu Access Mode - Menu Levels56
Reading Variables - Status and Diagnostics Menus56
Writing Variables - Configurations Menu57
Writing Variables - Wizards Menu57
Help Key57
Date and Time Setting58
Main Screen Setting58
View Modes58
Modification of the Main Screen59
Screen Examples61
Usb Mode61
Installing the Hmi62
First Time Power-Up and Start-Up63
Prepare for Start-Up63
Start-Up63
Instructions for Computer Connection64
Troubleshooting and Maintenance65
Operation of Protections, Faults and Alarms65
Protections, Faults, Alarms, and Possible Causes66
Protection, Fault and Alarm Table66
Solutions for the most Frequent Problems96
Information for Contacting Technical Support96
Preventive Maintenance97
Cleaning Instructions98
Accessories99
List of Accessories99
Backplane Replacement100
Installing the Control Accessory100
Technical Specifications102
Inverter Power Data102
Input102
Output103
General Data103
Environmental and Mechanical Data104
Current, Motor and Loss Data105
Definitions of Derating Factors108
Introduction108
Derating Factor According to the Ambient Temperature (Fdta)109
Derating Factor According to the Switching Frequency (Fdfsw)110
Derating Factor According to the Altitude of the Installation Site111
Other Derating Factors112
Inverter Control Data113
General Control Specifications113
Input and Output Specifications114
Specifications of the Communication Networks115
Standards and Certifications115
Mechanical Data116
Frame Size a116
Frame Size B117
Frame Size C118
Frame Size D119
Frame Size E120
Frames A, B and C with IP21 Kit121
Frames D and E with IP21 Kit122
Frames A, B and C with UL Type 1 Kit123
Frames D and E with UL Type 1 Kit124

WEG CFW900 - Power and Grounding Wiring

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