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E6581301
B-14
2
2.3.3 Serial RS485 communication connector
The VF-AS1 is equipped with two connectors: a two-wire RS485 connector (on the operation panel) and a four-wire
RS485 connector. The two wire RS485 connector is used to connect an optional peripheral device (such as extended
control device or computer) to the inverter. To connect to a network, use the four-wire RS485 connector, following the
instructions below.
2-wire RS485 4-wire RS485
Signal
name
Pin
number
Description
Signal
name
Pin
number
Description
DA 4 Same phase data RXA 4 Same phase reception data (positive line)
DB 5 Anti-phase data RXB 5 Anti-phase reception data (positive line)
SG 8 Ground line of signal data TXA 3 Same phase transmitting data (positive line)
This table shows signal line of inverter side. TXB 6 Anti-phase transmitting data (positive line)
* Never use pin-1, 2, 3, 6 and 7. SG 2, 8 Ground line of signal data
This table shows signal line of inverter side.
(Example: RXA signal is received by inverter.)
* Never use pin-1 (P24) and pin-7 (P11).
■ Connecting diagram for 4-wire RS485 communication
Terminating
resistance
100Ω -1/4W
A
S1 (slave)
Upper computer or
VF-AS1 (master)
RXA
RXB
TXA
TXB
SG
RXA
RXB
TXA
TXB
SG
RXA
RXB
TXA
TXB
SG
RXA
RXB
TXA
TXB
SG
cross each other straight
straight
A
S1 (slave)
A
S1 (slave)
■ Note
* Separate the communication line and the main circuit wiring by 20cm or more.
* Never use pin-1 (P24) and pin-7 (P11).
* Connect RXA and RXB, between TXA and TXB using twisted pair cable.
* Connect terminating resistances at both ends of a transmission line.
* When using 2-wire type, short RXB to TXB and RXA to TXA.
When connecting a communications device via the two-wire connector, carefully read the precautions for use in the
operating manual for the communications device.
* When connecting the VF-AS1 to other inverters, you do not need to connect the master receive lines (pins 4 and 5)
or the slave send lines (pins 3 and 6).
2-wire RS485 communication
4-wire RS485 communication
- E6581301Ԙ 1
- I. Safety precautions 3
- Danger 4
- II. Introduction 9
- E6581301 11
- - Contents 11
- 1. Read first 17
- 1.3.1 Names and functions 18
- 1) Outside view 18
- 1.3.2 Detaching the cover 25
- 1.4 Notes on the application 30
- 1.4.1 Motors 30
- 1.4.2 Inverters 32
- ■ Disposal 32
- Warning 33
- 1.4.4 Installation 35
- ■ Installation environment 35
- ■ How to install 36
- 2. Connection equipment 41
- 2.2 Standard connections 43
- 2.3 Description of terminals 48
- 3. Operations 55
- Status monitor mode 56
- Standard monitor mode 56
- (when the power is turned on) 56
- Setting monitor mode 56
- Deceleration 57
- 3.2.2 Panel operation 61
- 4.1 How to set parameters 64
- 5. Basic parameters 67
- CW : Automatic torque boost 69
- ■ Preset speed operation 74
- + The inverter is factory 75
- +To save the frequency 75
- HE and the set 75
- 5.6 Selecting control mode 77
- 2) Decreasing output voltage 78
- 3) Increasing starting torque 78
- 5.8 Base frequency 81
- 5.9 Maximum frequency 82
- Estimation of temperature 90
- 5.17 PWM carrier frequency 96
- Warning 97
- Surge killer 103
- 5.20 Standard default setting 107
- ( ) 109
- 5.22 EASY key function 110
- 6. Extended parameters 113
- 6.2 Input signal selection 115
- Internal command 116
- Servo lock status 120
- Command selected 123
- Operation frequency 125
- 6.8 DC braking 126
- 6.10 Jog run mode 131
- Jumping width 2 135
- Jumping width 1 135
- 6.14.1 Retry function 136
- 6.15 Drooping control 139
- Load portion torque input 141
- 6.20 PID control 145
- 6.22 Setting motor constants 148
- Setting motor constants 150
- 6.24 Torque control 152
- 6.25 Torque limit 154
- Positive torque 155
- Negative torque 155
- • Function 158
- 6.31 Pattern operation 163
- 6.32 Preset speed mode 165
- 6.33 Protection functions 166
- 6.33.3 Emergency stop 167
- H : Emergency stop 167
- 6.34 Override 175
- 6.35 Adjustment parameters 177
- Function 179
- ■ Example of setting 1 181
- ■ Example of setting 2 181
- 6.37 Tracing functions 183
- Trace data 1 184
- Trigger input 184
- 6.38 Communication function 187
- 1) 2-wire RS485 188
- 2) 4-wire RS485 190
- Host computer 191
- 6.39 My function 193
- 6.40 Traverse function 194
- 7.1 External operation 195
- B-contact switch 196
- Input terminal 196
- Inverter 196
- Programmable controller 197
- 7.2.4 Analog input filter 203
- 8.2 Monitoring the status 210
- 8.4.1 Trip code display 216
- 9.1.1 EMC directive 221
- Contact your supplier 222
- Use the 224
- EMC FILTER 226
- Ferrite core 1 227
- Shielded cable or [Note 1] 227
- Noise cut plate 228
- AIC, Fuse and Wire sizes 229
- Ｅ６５８１３００ 232
- Note on wiring 233
- 11. Table of parameters 239
- 12. Specifications 285
- E6581301 286
- ■ Outside dimensions and mass 289
- (Installation dimension) 290
- Before making a service call 295
- Cautions about cleaning 303
- 14.2 Periodical inspection 304
- ■ Check items 304
- 15. Warranty 307
- Warning 309
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