smd Series Drives Modbus Communications Reference Guide
RG-SDMOD 6Introduction2.4 Universal RegistersLenze-AC Tech manufactures several drive families. Currently the QC, MC, MCH, SC, TC, smd, Tmd and SMV S
7 RG-SDMODData & Register Format3 Data Representation - Internal and External3.1 Register FormatAll registers are 16 bits. The data within the
RG-SDMOD 8Drive Setup & Operation4 smd Drive Setup & Operation4.1 Control ParameterIn order to communicate using Modbus protocol, the smd Con
9 RG-SDMODDrive Setup & Operation4.4 Watchdog TimerThe smd drive is equipped with a Serial Link “Watchdog Timer”. If the Modbus Master wishes t
RG-SDMOD 10Drive Setup & Operation4.5 Unlocking & Locking ControlsRegisters #48 and #1 are used in Unlocking and Locking Controls.• A write
11 RG-SDMODDrive Setup & Operation4.8 Normal Control Operation Sequence1. Power up drive.2. Set parameter C01 (Control Source Setpoint) to sel
RG-SDMOD 12Drive Control & Communication5 smd Drive Control RegistersTable 6 describes the smd Drive Control Registers in ascending order of smd R
13 RG-SDMODDrive Control & Communication5.1 AbbreviationsTable 7 lists the abbreviations used in Table 6 smd Drive Control Registers:Table 7: Abb
RG-SDMOD 14Drive Control & CommunicationNOTE 1 - Drive Control• During each write to Register #1 only one bit should be set in the drive control
15 RG-SDMODDrive Control & Communication5.4 Drive Status - Registers #24-295.4.1 Reading Register #24When reading register #24, the group of wo
This documentation applies to the use of an smd Series Variable Frequency Drive in a Modbus Network and should be used in conjunction with the smd Ser
RG-SDMOD 16Drive Control & Communication5.4.2 Operational Status - Register #26Table 11 lists the Operational Status (Register #24 byte D3L or Re
17 RG-SDMODDrive Control & Communication5.4.5 Speed Command Source - Registers #24 & 28Table 14 lists the Speed Command Source (Register #24
RG-SDMOD 18Drive Control & Communication5.4.8 Commanded Rotational Direction - Registers #24 & 29Table 17 lists the Commanded Rotational Dire
19 RG-SDMODDrive Control & Communication6 smd Programming Parameters6.1 FormatNOTE - AttentionParameter list presented in Section 6.2 is valid on
RG-SDMOD 20Drive Control & Communication6.2 Parameter ListParameter No. 1smd Register #(hexadecimalrepresentation)Parameter Name Range of Adjustm
21 RG-SDMODDrive Control & CommunicationParameter No. 1smd Register #(hexadecimalrepresentation)Parameter Name Range of Adjustment 2,Modbus value
RG-SDMOD 22Drive Control & CommunicationParameter No. 1smd Register #(hexadecimalrepresentation)Parameter Name Range of Adjustment 2,Modbus value
23 RG-SDMODDrive Control & CommunicationParameter No. 1smd Register #(hexadecimalrepresentation)Parameter Name Range of Adjustment 2,Modbus value
RG-SDMOD 24Drive Control & CommunicationNOTE 5 - smd - Fault HistoryParameters c61 (Present Fault), c62 (Last Fault) and c63 (Last but one Fault)
25 RG-SDMODDrive Control & Communication7 Quick Start InstructionsFollow these Quick Start instructions to use Modbus Communications for basic n
i RG-SDMODContents1 Safety Information ...
RG-SDMOD 26Drive Control & Communication7.2 Drive Control1. Please be advised that while the drive is under network control the local STOP circu
27 RG-SDMODDrive Control & Communication7.4 Basic Drive StatusAC Tech register 24 is a 6 word entity containing the drive’s status information.
AC Technology Corporation630 Douglas Street • Uxbridge MA 01569 • USASales: 800-217-9100 •Service: 508-278-9100www.lenze-actech.comRG-SDMOD-e4
RG-SDMOD iiContents5 smd Drive Control Registers ...125.1 A
1 RG-SDMODSafety Information1 Safety Information1.1 Warnings, Cautions and Notes1.1.1 GeneralSome parts of Lenze controllers (frequency inverters,
RG-SDMOD 2Safety Information1.1.4 Electrical ConnectionWhen working on live drive controllers, applicable national regulations for the prevention of
3 RG-SDMODIntroduction2 IntroductionThis document defines the specifics required for Modbus serial communication with a Lenze-AC Tech standard smd Ser
RG-SDMOD 4Introduction2.2.3 Network TerminationFor an RS-485 network it is essential to install the specified termination resistors (120W), i.e. one a
5 RG-SDMODIntroductionD. The function codes supported by the smd drives are:03 Read Holding Register (4X references). In general we can read only
Variador