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I. Safety precautions ······················································································································································ 1
I I. Introduction ······························································································································································· 7
1. Read first ····························································································································································· A-1
1.1 Check the product ········································································································································ A-1
1.2 Contents of the product code ······················································································································· A-1
1.3 Structure of the main body ··························································································································· A-2
1.3.1 Names and functions ···························································································································· A-2
1.3.2 Detaching the cover ······························································································································ A-9
1.3.3 Grounding capacitor switching method ································································································· A-12
1.3.4 Installing the DC reactor ························································································································ A-16
1.4 Notes on the application ······························································································································· A-17
1.4.1 Motors ··················································································································································· A-17
1.4.2 Inverters ················································································································································ A-19
1.4.3 Measure to take against leakage Current ····························································································· A-20
1.4.4 Installation ············································································································································· A-22
2. Connection equipment ········································································································································ B-1
2.1 Cautions on wiring········································································································································ B-1
2.2 Standard connections··································································································································· B-3
2.3 Description of terminals ································································································································ B-10
2.3.1 Main circuit terminals ···························································································································· B-10
2.3.2 Control circuit terminal block ················································································································· B-11
2.3.3 RS485 communication connector ········································································································· B-16
3. Operations ··························································································································································· C-1
3.1 Setting/monitor modes ································································································································· C-2
3.2 Simplified operation of the VF-AS1 ·············································································································· C-3
3.2.1 Terminal board operation ······················································································································ C-3
3.2.2 Panel operation ····································································································································· C-7
4. Searching and setting parameters······················································································································· D-1
4.1 How to set parameters ································································································································· D-2
4.1.1 Setting parameters in the selected quick mode ···················································································· D-2
4.1.2 Setting parameters in the standard setting mode·················································································· D-3
4.2 Functions useful in searching for a parameter or changing a parameter setting ·········································· D-4
5. Basic parameters ················································································································································ E-1
5.1 History function ············································································································································ E-1
5.2 Setting acceleration/deceleration time ········································································································· E-2
5.2.1 Automatic acceleration/deceleration ····································································································· E-2
5.2.2 Manually setting acceleration/deceleration time ··················································································· E-3
5.3 Increasing starting torque ····························································································································· E-3
5.4 Setting parameters by operating method ····································································································· E-5
5.5 Selection of operation mode ························································································································ E-6
5.6 Selecting control mode································································································································· E-11
5.7 Manual torque boost–increasing torque boost at low speeds ······································································ E-16
5.8 Base frequency ············································································································································ E-16
5.9 Maximum frequency ····································································································································· E-17
5.10 Upper limit and lower limit frequencies········································································································· E-17
5.11 Setting frequency command characteristics ································································································· E-18
5.12 Preset speed operation (speeds in 15 steps)Უ ··························································································· E-18
5.13 Selecting forward and reverse runs (operation panel only) ·········································································· E-21
5.14 Setting the electronic thermal ······················································································································· E-22
5.15 Changing the display unit % to A (ampere)/V (volt) ······················································································ E-26
5.16 Meter setting and adjustment ······················································································································· E-27