Toshiba TOSVERT VF-A3 Instruction Manual page 8

CHAPTER 5
CHAPTER 6
CHAPTER 7
CHAPTER 8
VF-A3 SPECIRCATIONS ............................................................. 88
5.1 Standard specifications································································ 89
5.2 External dimensions ................................................................... 91
5.3 Protective functions ................................................................... 93
5.3.1 Electronic thermal function
[I:H,- ]
·····································93
5.3.2 Stall prevention function
[51: L ] ...........................................
93
5.3.3 Selection of electronic thermal characteristics
[ 5EL'-{ ] ......................................................
················94
5.3.4 Retention of system status [
1:,-.
[L
J ..................................
95
5.3.5 Restart try function [
,-1:,-
' : :i ] •••.•.••••••••.•••••••••••••••••••••••••••• 96
5.3.6 Automatic restart function
(after instantaneous power interruption
[R,- 51: ]
···················97
5.3.7 Power control function for momentary power failuer. [Uu.C] ····98
SUMMARY OF SETTINGS AND ADJUSTMENTS················· .............. 99
OPTIONAL UNITS
······································································1
05
7.1 Options for external installation ····················································106
7.2 Buil-in options ............................................................................ 107
WRITING PRECAUTIONS ............................................................ ·110
8.1 Installation site and operating environment·· .................................. ·111
8.2 Main circuit connections ...................................................... ·······111
8.2.1 Power supply to the inverter .......................................... ····111
8.2.2 Motor to the inverter to a ground terminal ......................... ···113
8.2.3 Between the inverter and the regenerative discharge
resistor/regenerative discharge unit .................................... ·114
8.2.4 Wiring specifications ...................................................... ····115
8.3 Control signal circuit wiring ·················································117
CHAPTER 9 FAULT MESSAGES······································································118
9.1 Fault messages ...................................................... ···················119
9.2 Symptoms of common motor problems ···········································121
CHAPTER 10
INSPECTIONS AND MAINTENANCE ............................................. ·123
10.1 Preventive maintenance and periodic inspection ........................... ·124
CHAPTER 11 STRING THE INVERTER AND TERMS OF WARRANTEY .................. ·1 26
11.1 Storing the inverter .......................................................... · .... ··· .. ··127
11 .2 Terms of warranty ............................................................ ·1 27