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RS485/MODBUS Protocol E-1

MN762

Appendix E

RS485/MODBUS Protocol

E.1 Introduction

The VS1MX AC Drive is supplied with imbedded RS-485 communications that supports the Modbus-R TU protocol. This

allows the user to set up a multi-drop communications network between multiple VS1MX drives and a PLC or host computer

without the requirement of option boards for the drives. This is a master-slave architecture where the master (e.g. PLC) can

monitor and control multiple VS1MX drives on the same network with other Modbus-RTU slaves. This appendix defines the

specifics needed to set up a VS1MX on an RS-485 network running the Modbus-R TU protocol and documents the function

codes and exception codes supported by the VS1MX. For a complete definition of the Modbus-RTU protocol and the

content of specific messages see www.modbus.org.

Figure E-1 Communications Connection for RS-485

Model VS1-CommUSB

USB to RS-485 Converter Kit

RDA(-)

TDB(+)

RDB(+)

TDA(-)

GND

1
2
3
4

RS-485

Echo OFF

2 Wire

RS-422

Echo ON

4 Wire

Switch Se

tti

ngs

(Rear of Adapter)

RS485-/Modbus – Pin 7

RS485+/Modbus - Pin 8

RS485 Modbus Ground

RS485-/Modbus N

RS485+/Modbus P

Communications Connection for RS-485

Communications

From a VS1-COMMUSB to a VS1MX or MX RJ -45 Port

MXST bus connections

RS485-/Modbus – Pin 3

Содержание VS1MX

Страница 1: ...04 13 Installation Operating Manual MN762 VS1MX AC Extreme Duty Microdrive...

Страница 2: ...re the property of their respective owners Important Be sure to check www baldor com for the latest software firmware and drivers for your VS1MX product Also you can download the latest version of thi...

Страница 3: ...Size and Lock off 3 4 Chapter 4 Power Wiring 4 1 Overview of Power Connections 4 1 4 1 1 Safety Ground 4 1 4 1 2 Motor Ground 4 1 4 1 3 Shield Termination 4 1 4 1 4 RFI Filter Grounding 4 1 4 2 Power...

Страница 4: ...07 3 or 4 8 5 8 2 4 User PI Control Mode P 07 5 or 6 8 5 Chapter 9 Troubleshooting 9 1 Fault Codes 9 1 9 2 Periodic Inspection 9 1 Appendix A Technical Specifications A 4 Appendix B Parameter Tables B...

Страница 5: ...nstallation E 1 E 3 Operation E 1 E 4 Performance Specifications E 1 E 5 Hardware Specifications E 2 E 6 Communication Specifications E 2 E 7 Communications Protocol MODBUS RTU E 2 E 7 1 Register Desc...

Страница 6: ...iv MN762...

Страница 7: ...are completely familiar with the safe operation of this equipment This equipment may be connected to other machines that have rotating parts or parts that are controlled by this equipment Improper us...

Страница 8: ...AC power to these terminals may result in damage to the control CAUTION Baldor does not recommend using Grounded Leg Delta transformer supplies that may create ground loops Instead we recommend using...

Страница 9: ...rive disabled 7 Connect Power Motor wires to the control See Figure 1 1 8 Turn power on Be sure there are no faults For switched version place the Power On Off switch in ON position 9 Set the followin...

Страница 10: ...not provided Only provided in Switched version Control Wiring Terminals Only on Switched versions Table 1 1 Control Terminal Descriptions Terminal Signal Description 1 24VDC 100 mA 2 Digital In1 8 30...

Страница 11: ...1 Drive Identification 2 2 Storage Guidelines Follow these recommendations to prolong drive life and performance if storing the drive 1 Storage ambient temperature is 40 C to 60 C 2 Storage Humidity...

Страница 12: ...VS1MX8K1P5 2 1 5 16 2 7 A 90 VS1MX82 VS1MX8K1P5 2 1 5 16 2 7 B 90 VS1MX83 VS1MX8K2P2 3 2 2 23 8 10 5 B 130 200 240V 10 3 Phase Input VS1MX20P5 VS1MX2K0P4 0 5 0 37 3 2 3 A 22 VS1MX21 VS1MX2K0P8 1 0 75...

Страница 13: ...tromagnetic fields that may interfere with control wiring or components when run in close proximity to the drive Read the recommendations in the following sections before continuing with the drive ins...

Страница 14: ...ng Hole Locations B1 A1 A B A1 A B1 B I J A2 STOP RESET START PROG ENT STOP RESET START PROG ENT Table 3 2 NEMA 12 IP55 Dimensions Frame A A1 A2 B B1 I J C Depth Weight in mm in mm in mm in mm in mm i...

Страница 15: ...m in mm in mm in mm in mm in mm in mm lb kg A 9 13 232 7 44 189 0 98 25 6 34 161 5 85 148 5 0 16 4 0 0 31 8 0 7 05 179 5 07 2 3 B 10 12 257 7 87 200 1 12 28 5 7 4 188 6 93 176 0 17 4 2 0 33 8 4 7 34 1...

Страница 16: ...ning A and C Knock Out B Diameter UL Gland Size Metric Gland Size Diameter UL Gland Size Metric Gland Size A 866 22mm 3 4 in 28mm 866 22mm 3 4 in 21 B C 1 11 28 2mm 1 in 35mm 866 22mm 3 4 in 27 Note U...

Страница 17: ...rminals for ground connections 4 1 3 Shield Termination Either of the safety ground terminals located on the power terminal block provides a grounding point for the motor cable shield The motor cable...

Страница 18: ...anch Circuit Protection These devices require circuit protection Branch circuit protection shall be provided The size of the Branch Circuit Protection Fuse shall be as shown in the ratings table or eq...

Страница 19: ...0 14 2 5 9 0 1 0 7 14 1 5 9 0 1 0 328 100 47 3 2 2 13 1 16 15 12 4 9 0 1 0 10 5 14 1 5 9 0 1 0 328 100 47 5 4 17 3 20 10 4 9 0 1 0 18 10 2 5 9 0 1 0 328 100 47 380 480V 10 3 Phase Input 1 0 75 3 1 6 1...

Страница 20: ...may be damaged Before the control is enabled the M Contactor must be closed for at least 200msec Figure 4 3 Motor Connections and Optional Connections Optional components not provided with control Bal...

Страница 21: ...te or tape ungrounded end of shields to prevent contact with other conductors or ground Figure 5 1 Control Terminals Red Blu Yel Grn Wht Blk Front Panel Potentiometer Front Panel FWD O REV Switch Cont...

Страница 22: ...ess and hold the ENT PROG key for 1 second to return to operational mode The display shows if the drive is stopped or the real time information for example speed if the drive is running 5 4 Reset Fact...

Страница 23: ...he UP arrow is released The rate of acceleration is controlled by the setting of P 10 check this before starting 6 Press the DOWN arrow to decrease speed The drive will decrease speed until DOWN is re...

Страница 24: ...5 4 Control Wiring MN762...

Страница 25: ...keypad mode Pressing for a period of time will increase the reference value rate of change In edit mode navigates between parameters and increments parameter values Decrease During operation decrease...

Страница 26: ...configuration Press the ENT PROG key momentarily to toggle between Hertz and Amps on the display Figure 6 1 Standard Display Screen P 04 0 P 23 0 ENT PROG ENT PROG 6 2 2 RPM Display Setting P 04 to a...

Страница 27: ...er than zero is assigned to P 23 a new display is enabled in operational mode If P 04 0 P 23 will scale units in Hertz and if P 04 is not zero P 23 will scale the RPM units set by P 04 see display exa...

Страница 28: ...Preset Speed 1 provides a Jog Speed set in P 12 Run Reverse STOP Run Forward 0 6 Run Forward or Reverse with speed controlled from the Local POT E Trip if Dig IN3 is open Run in Auto STOP Run in Hand...

Страница 29: ...2 Run time since last trip Reset on next enable after trip Not by Undervolt trip or power down unless after a trip condition P00 13 Run time since drive enabled Reset on next enable after disable P00...

Страница 30: ...ote When P 04 is set to a value other than 0 the value displayed will be in RPM P 06 Maximum Output Speed Range P 05 to 5 times P 03 max 500Hz Preset 60 0 User specified maximum motor speed speeds gre...

Страница 31: ...0 to 600 0 seconds Preset 5 0 Sets the time for the motor to accelerate from 0 to motor rated speed P 03 Short times may cause over current trips P 11 Decel Time Range 0 to 600 0 seconds Preset 5 0 Se...

Страница 32: ...enabled r indicates the drive will ramp to Preset Speed 1 if signal is removed when drive is enabled P 18 Voltage Boost Range 0 0 to 20 0 for frame A 0 0 to 15 0 for frame B 0 0 to 10 0 for frame C o...

Страница 33: ...frequency has been reduced to the level in P00 14 due to excessive drive heatsink temperature P 22 Relay Output Select Range 0 to 7 Preset 1 Defines the function of the user relay when operating condi...

Страница 34: ...ating frequency of the driven motor or machinery See also P 27 P 27 Skip Frequency Band Range 0 to P 06 Preset 0 0 Sets the width of the skip frequency band Setting P 27 to 0 disables the avoidance fr...

Страница 35: ...The drive will then accelerate DC braking may be applied after run command is issued See also P 18 P 31 P 33 Decel2 Range 0 to 25 Fast Stop Preset 0 00 Sets a second Decel time P 33 is used if the dr...

Страница 36: ...to P 03Hz Preset 0 0 Sets the frequency at which the adjustment voltage set in P 37 is applied P 37 V F Voltage Adjustment Range 0 to P 01V Preset 0 Sets the applied motor voltage at the frequency set...

Страница 37: ...et Speed 1 if signal is removed when drive is enabled P 45 Parameter access lock Range 0 or 1 Preset 0 0 Parameters can be changed auto saved on power down 1 Read only No changes allowed Controls acce...

Страница 38: ...7 10 Parameter Descriptions MN762...

Страница 39: ...can also be negative for reverse speeds If a non zero minimum speed is set in P05 the motor will ramp to this minimum speed at the rate set in P10 as soon as the drive is enabled Note When P 04 is set...

Страница 40: ...pen REV Stop Open Analog SPD Ref SPD Ref Closed FWD Run Closed REV Run Closed Preset Speed1 6 Open Stop Open FWD Run Open Trip Ext Trip SPD Ref Closed Run Closed REV Run Closed Run 7 Open FWD Stop Ope...

Страница 41: ...V Output O Stop disable C Run enable O Analog Speed Ref C Preset Speed 1 2 O Preset Speed 1 C Preset Speed 2 10V Output Analog Speed Ref 0V 24V Output 24V Output 24V Output 24V Output O Stop disable C...

Страница 42: ...t Trip Open Keypad Speed Ref Closed Run Closed REV Run Closed Run Closed Preset Speed 1 7 Open FWD Stop Open REV Stop Open Trip Ext Trip Open KeypadSpeedRef Closed FWD Run Closed REV Run Closed Run Cl...

Страница 43: ...Thermistor or similar user contact to Digital Input 3 8 2 4 User PI Control Mode P 07 5 or 6 Factory Settings for Proportional Gain P 38 Integral Time Constant P 39 and Feedback mode P 43 are suitabl...

Страница 44: ...ignal 10V Output 10V Output Volts Current P44 Volts Current P44 Local Analog Ref Analog Input 1 Local Analog Ref 0V 0V O Stop disable C Run enable O PI Control C Preset Speed 1 O External Trip C Run P...

Страница 45: ...ence Select 6 Analog Input 1 4 Analog Input 2 Motor Load Current P 43 Feedback Reference Select P Gain P 38 I Gain P 39 6 Analog Input 1 P07 6 Analog Input 1 Summation P00 03 Speed Reference PI Output...

Страница 46: ...n P 08 9 P 42 PI Digital Reference 6 Analog Input 1 4 Analog Input 2 P 08 9 Feedback Reference Select P Gain P 38 I Gain P 39 P00 03 Speed Reference PI Output 0 to P 06 1 P 40 PI Operating mode invert...

Страница 47: ...or re enable the drive 3 The drive will restart according to the mode selected by P29 4 If the motor is stopped and the display shows STOP there is no fault the drive output is disabled and the drive...

Страница 48: ...wiring to motor look for phase phase or phase Earth short circuit Check drive ambient temp additional space or cooling is needed Check drive is not forced into overload Over voltage on DC bus Check to...

Страница 49: ...ntion Over voltage suppression over current suppression External Output LED trip condition indicators 4 assignable logic outputs 2 assignable analog outputs Short Circuit Phase to phase phase to groun...

Страница 50: ...A 2 Technical Specifications MN762...

Страница 51: ...xternal FDBK 6 User PI control Analog Input 0 P08 RW Operating Mode 0 12 0 P09 RW Stop Mode 0 Ramp to stop 1 Coast to stop 2 Ramp to stop fast stop 0 P10 RW Accel Time 0 to 600 seconds 5 0 P11 RW Dece...

Страница 52: ...P31 and the amount of braking in P18 The drive will then accelerate 0 P33 RW Decel2 Fast Stop 0 to 25 seconds 0 00 P34 RW Brake Chopper Enable 0 Disabled 1 Enabled 2 Enabled without s w protection 0 P...

Страница 53: ...sponsibility of the system integrator to ensure that the entire system complies with all relative directives at the time of installing into service Motors and controls are used as components of a syst...

Страница 54: ...mmended AC supply filter and having met all cable requirements Note Radiated magnetic and electric fields inside the cubicle will be high and components installed inside must be sufficiently immune Th...

Страница 55: ...d Signal 4 GROUNDING EARTH For safety reasons VDE0160 all Baldor components must be connected to ground with a separate wire The diameter of the wire must be at minimum AWG 6 10mm2 Ground connections...

Страница 56: ...e connected to ground at both ends E The location of the AC mains filter has to be situated close to the drive so the AC power wires are as short as possible F Wires inside the enclosure should be pla...

Страница 57: ...t the enclosure mounting locating using Figure D 1 as a template 2 Remove the covering from adhesive backing on the rear of the keypad 3 The Remote keypad snaps into place Simply press into the mounti...

Страница 58: ...tection is provided in this setting and an external thermal device is required to protect the resistor CopyCat Loader Connects to the RJ45 Port on the front of the VS1MX and allows the upload or downl...

Страница 59: ...x defines the specifics needed to set up a VS1MX on an RS 485 network running the Modbus R TU protocol and documents the function codes and exception codes supported by the VS1MX For a complete defini...

Страница 60: ...VS1MX control 2 Disconnect the motor load from the control terminals U V and W Do not connect the motor load until stable communication between the master controller and the inverter are verified 3 Ve...

Страница 61: ...Table E 5 Modbus RTU Protocol Register Upper byte Lower Byte Command Type 1 Command 03 06 R W 2 Speed reference 03 06 R W 3 Reserved 03 06 R W 4 Modbus ramp control time 03 06 R W 5 Reserved 03 R 6 Er...

Страница 62: ...set by P 06 Register 4 Modbus ramp control time This register specifies the drive acceleration and deceleration ramp time User can only write to this register when P 07 is set to 4 The input data rang...

Страница 63: ...t 129 Motor Rated Voltage 0 20 to 250 V 230 VAC 0 20 to 500 V 460 VAC 130 Motor Rated Current Drive dependent One decimal place 300 30 0A 131 Motor Rated Frequency 25 to 500 Data unit is in Hz 132 Mot...

Страница 64: ...0 9 See user guide for function details 153 Relay output limit 0 1000 100 10 0 154 Skip Frequency 0 to P 06 Internal value 3000 50 0Hz 155 Skip Frequency Band 0 to P 06 Internal value 3000 50 0Hz 156...

Страница 65: ...Hz 165 V F Voltage Adjustment 0 to P 01 100 100V 166 User PI Proportional Gain 1 300 10 1 0 167 User PI Integral time constant 0 300 10 1 0s 168 User PI feedback mode 0 1 0 Direct 1 Inverse 169 User P...

Страница 66: ...ble E 7 Read Data Example Request 01 03 00 05 00 01 94 0B Drive Addr Command Reg start addr No of Registers Checksum Reply 01 03 02 00 00 B8 44 Drive Addr Command No of data bytes Data Checksum Note T...

Страница 67: ...315 255 3403 FAX 315 253 9923 NORTH CAROLINA GREENSBORO 1220 ROTHERWOOD ROAD GREENSBORO NC 27406 PHONE 336 272 6104 FAX 336 273 6628 OHIO CINCINNATI 2929 CRESCENTVILLE ROAD WEST CHESTER OH 45069 PHONE...

Страница 68: ...ted in USA 04 13 762 0413 P O Box 2400 Fort Smith AR 72902 2400 U S A Ph 1 479 646 4711 Fax 1 479 648 5792 International Fax 1 479 648 5895 Baldor Dodge 6040 Ponders Court Greenville SC 29615 4617 U S...

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