Related Manuals for Lenze AC Tech SMVector RS-485 LECOM Communication Module
Summary of Contents for Lenze AC Tech SMVector RS-485 LECOM Communication Module
- Page 1 SMVector RS-485 LECOM Communication Module Communications Interface Reference Guide...
- Page 2 3.0 or later. All SMVector 15HP (11kW) and higher models support the LECOM option on the RS-485 communication module. © 2008 Lenze AC Tech Corporation No part of this documentation may be copied or made available to third parties without the explicit written approval of Lenze AC Tech Corporation.
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Page 3: Table Of Contents
Contents Safety Information ..............................2 General ..................................2 Application ................................... 2 Installation ..................................2 Electrical Connection ..............................2 Operation ..................................3 Introduction ................................4 Module Specifications ..............................4 Module Identification Label ............................4 Installation .................................5 Mechanical Installation ..............................5 RS-485 Terminal Block..............................6 Electrical Installation.............................. -
Page 4: Safety Information
Safety Information Safety Information General Some parts of Lenze controllers (frequency inverters, servo inverters, DC controllers) can be live, moving and rotating. Some surfaces can be hot. Non-authorized removal of the required cover, inappropriate use, and incorrect installation or operation creates the risk of severe injury to personnel or damage to equipment. -
Page 5: Operation
Safety Information Operation Systems including controllers must be equipped with additional monitoring and protection devices according to the corresponding standards (e.g. technical equipment, regulations for prevention of accidents, etc.). You are allowed to adapt the controller to your application as described in the documentation. DANGER! •... -
Page 6: Introduction
Introduction Introduction This reference guide assumes that the reader has a working knowledge of the LECOM Protocol and familiarity with the programming and operation of motion control equipment. This guide is intended as a reference only. Module Specifications Table 2 identifies the LECOM serial communication specifications. If the specification is fixed (non-adjustable) the value is shown under “Range”, if the specification is selectable, the table identifies the Parameter and available range of selections. -
Page 7: Installation
Installation Installation Mechanical Installation 1. Ensure that for safety reasons the AC supply has been disconnected before opening the terminal cover. 2. Insert the RS-485 option module in the terminal cover and securely “click” into position as illustrated in Figure 2. 3. -
Page 8: Rs-485 Terminal Block
Installation RS-485 Terminal Block For a LECOM network, wire the RS-485 connector as detailed in Table 3. Table 3: RS-485 Pin Designation Terminal Description Important RS-485 Connector Earth ground / shield For reliable communication make sure terminal is connected to the LECOM network GND/common. If only two wires are used (TXA and TXB) in the network, connect Terminal 1 to chassis/earth ground. -
Page 9: Network Termination
Installation 3.3.4 Network Termination For an RS-485 network it is essential to install the specified termination resistors (120W), i.e. one at both ends of a network segment. Failure to do so will result in signals being reflected back along the cable which will cause data corruption. An external 120W 1/4W resistor can be connected as shown in Figure 5. -
Page 10: Parameters For Use With Rs-485/Lecom
Commissioning Parameters for use with RS-485/LECOM Drive Communication Parameters The parameters listed in Table 5 are always present on the drive, even if there is no communication module installed. Table 5: Drive Communication Parameters Code Possible Settings IMPORTANT Name Default Selection P400 Network Protocol Not Active... -
Page 11: Rs485 Lecom-Specific Parameters
Commissioning RS485 LECOM-Specific Parameters The parameters listed in Table 6 are only present in the drive if there is an RS485 communication module installed, P400 = 7 and the module is online (P402 = 3). Table 6: RS485 LECOM-Specific Parameters Code Possible Settings IMPORTANT... -
Page 12: Lecom Protocol Details
Commissioning LECOM Protocol Details LECOM - A/B Protocol Description The LECOM-A/B protocol is used to exchange data between SMV controllers and a host. The LECOM-A/B protocol is based on DIN 66019, ISO 1745 and ANSI X3.28 (category 2.5 and A2, A4). These standards are similar to each other and describe the control mode of a transmission section of a transmission system. -
Page 13: Code Number (C1, C2)
Commissioning Code Number (C1, C2) 5.3.1 Standard Addressing The meaning of the code numbers and the assigned parameters can be obtained from the code table (in section 9) and the SMV Operating Instructions Manual (SV01, section10). When transmitting data, the code number is coded as follows: The following calculation determines the two ASCII digits from the code number (value range: 0 ... -
Page 14: Addressing Via Input Selection
Commissioning 5.3.3 Addressing via Input Selection Simple LECOM-A/B drivers, which only use the standard addressing, cannot address subcodes. The input selection C0248 has been developed to offer the possibility of addressing the subcodes. When using the standard addressing, the value entered in C0248 is always considered as the subcode. The code C0248 can always be accessed via number 248, independent of the currently set code bank and the sub code used. - Page 15 Commissioning The abbreviations have the following meanings: VK1 to VK6 Integers Decimal point (if required) NK1 to NK4 Decimal codes (if required) “H” (48hex) Character [H], transfer of parameter values in the ASCII hexadecimal format VH1 to VH8 1 to 8 hexadecimal characters each [0 to 9; A to F] “S”...
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Page 16: Block-Check Character (Bcc)
Commissioning Parameter values in the octet string format (VO) The LECOM-A/B protocol includes the octet string format (VO) with which it is possible to transfer data blocks. The character sequence corresponds to the filing in the memory (ascending order), i.e. the character transmitted first is the data block nibble with the lowest address. -
Page 17: Lecom Message Details
Commissioning LECOM Message Details Telegram Response The SMV controller must return an acknowledgement to the host. The only exceptions to this are when a broadcast telegram is received or when the controller address is not correct. These telegrams do not require an acknowledgement. The SMV controller sends two types of acknowledgements: •... -
Page 18: Send Telegram
Commissioning Example 1 The current speed setpoint (code number C46) is to be read with the bus address 01 at the controller. The host sends the following RECEIVE telegram The controller can respond in three different ways: Valid request: The current value of the parameter C46 is 35.4 (Hz) or Invalid request: A check-sum fault (parity fault) occurred during data transmission or Invalid request: Parameter C46 does not exist in this controller. -
Page 19: Broadcast / Multicast
Commissioning Broadcast / Multicast In a bus network, the command BROADCAST is to address all devices or a group of devices (multicast) at the same time. The structure of the BROADCAST telegram is similar to the structure of the SEND telegram. The only exception is that it does not return an acknowledgement. -
Page 20: Commissioning
Commissioning Commissioning Drive Monitoring The network can always read drive parameters as long as the LECOM communications are enabled (i.e. P400 = 7) and configured properly (see P410-411). For monitor only operation, set P420 = 0. Drive Programming and Control Network Control must be enabled for the network to program drive parameters or take control of a drive. -
Page 21: Drive Registers
Commissioning Drive Registers Configuration and Control Registers Registers #1 through #1099 are reserved for registers that are only available over the network and cannot be accessed via the drive’s local keypad. Table 9: Configuration & Control Registers Code Parameter Name Default Range of Adjustment Important Number... - Page 22 Commissioning Code Parameter Name Default Range of Adjustment Important Number C0135 Controller Control Description Word JOG1, JOG2, JOG3 0 = C0046 active 1 = JOG1 (C0037) active 2 = JOG2 (C0038) active 3 = JOG3 (C0039) active Rotation command 0 = CW 1 = CCW Quick Stop 0 = QSP not active...
- Page 23 Commissioning Code Parameter Name Default Range of Adjustment Important Number C0150 Controller Status Description Read only Word Reserved Power stage transistors energized Current Limit reached Reserved Setpoint Frequency reached Actual frequency above threshold C17 Actual frequency == 0Hz Controller inhibit 0 = No controller inhibit 1 = Controller inhibit 8 - 11 Controller status...
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Page 24: C1050 (Network Controlled Digital Output)
Commissioning Code Parameter Name Default Range of Adjustment Important Number C0200 Software Software identification string: Read only Identification example “33SSSMD-M_14000” LECOM Format = VS C0201 Software Software generation date: Read only Generation Date example “2008-10-18” LECOM Format = VS C1050 Network Controlled 0 = de-energized Refer to section 8.1.1... -
Page 25: Programming Parameters
Commissioning Programming Parameters There is an offset of 1000 between the Drive Programming Parameter numbers and the code numbers used in the LECOM messages. For example, if you want to read Drive Programming Parameter P103 (Maximum Frequency) over the LECOM network, you would read code number 1103. Fault History (P500) Value Display... -
Page 26: Drive Id (P502)
Commissioning Drive ID (P502) This register returns an index value that is associated with the voltage and power rating of the drive. Table 10 lists the drive configuration by Index number. Table 10: Drive ID Index Input Voltage Power Rating 240 VAC, Single-Phase 0.33 HP (0.25 kW) 1.5 HP (1.1 kW) -
Page 27: Terminal And Protection Status (P530)
Commissioning Terminal and Protection Status (P530) When a read command is issued over the LECOM network to Programming Parameter P530 (code number 1530), the Terminal and Protection Status data returned can be interpreted as follows: 0 TB-13D Input Status 8 TB-13C Input Status 1 reserved 9 TB-14 Output Status 2 Protection Status... -
Page 28: Troubleshooting And Fault Elimination
Troubleshooting and Fault Elimination Troubleshooting and Fault Elimination 10.1 Faults Table 11 lists the faults common to the LECOM communications module. Table 11: Faults Fault Code Fault Cause Remedy Module to Drive Connection between drive and Check cable and connection communication time out module is not made. - Page 29 Lenze AC Tech Corporation 630 Douglas Street • Uxbridge, MA 01569 • USA Sales: (508) 278-9100 • Service (508) 217-9100 www.lenzeamericas.com Document CMVLC401A-en1...
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