danfoss_control
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danfoss_control [2019/01/04 13:18] – emozolyak | danfoss_control [2022/01/15 14:10] (current) – ↷ Links adapted because of a move operation 127.0.0.1 | ||
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====== Controlling Danfoss frequency drives ====== | ====== Controlling Danfoss frequency drives ====== | ||
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- | Danfoss frequency drives supports Modbus protocol. To enable it, the parameter 08-30 should be set to '2'. | + | Danfoss frequency drives supports Modbus protocol. To enable it, the parameter 08-30 should be set to [2]. |
Other communication parameters are in the same 8th group: | Other communication parameters are in the same 8th group: | ||
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After changing protocol type, it neccessary to re-power the drive. Also, with changing protocol 8-30 [0] FC to Modbus [2] the baud reat will be automatically changed too (9600 for FC51 and 19200 for Modbus). | After changing protocol type, it neccessary to re-power the drive. Also, with changing protocol 8-30 [0] FC to Modbus [2] the baud reat will be automatically changed too (9600 for FC51 and 19200 for Modbus). | ||
- | Преобразователем можно управлять по Modbus | + | The drive can only be controll via Modbus |
- | При задании частоты по интерфейсу может быть ситуация, | + | |
- | Управление приводом производится через: | + | |
- | слово управления (CTW) - пуск, стоп, выбор конфигурации и др. Оно доступно по адресам C0..C15 через функцию Read coils, либо HR49999 через функцию чтения holding register | + | There might be a case, when actual frequency differs from the setpoint by a certain level. This is possible when there are many source frequency inputs enabled |
- | задание частоты через Bus reference register | + | |
- | контроль состояния - через слово статуса STW - C32..C47 | + | |
- | фактическая частота вращения (MAV) по адресу HR50209. | + | |
- | Подробно работа с ПЧ Danfoss описана в документе MG.02.A4.02 VLT® Micro Drive FC 51 Operating Instructions. Ниже приведена таблица с параметрами. Номера параметров, указанные в этих таблицах, | + | |
- | {{:: | + | The drive is controled and monitored via: |
- | Для модификации произвольного параметра преобразователя частоты, | + | ***CTW** control word - start, stop, configuration etc. accessible bitwise on C0..C15 addresses with Read coils or HR49999 with holding register read |
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+ | ***MAV** actual frequency HR50209. | ||
- | {{ :: | + | More details on working with Danfoss FC drives are described in document MG.02.A4.02 VLT® Micro Drive FC 51 Operating Instructions. Below is a table with parameters. The parameter numbers specified in these tables must be specified in the register settings with an offset of -1. For example, the Bus reference register (REF) in the documentation has the address 50000, but in the WebHMI you set it as HR49999. |
- | Ниже приведены настройки регистров для управления преобразователем частоты VLT Micro drive FC51 - пуск / останов, | + | {{network:fc51_memory_map.png? |
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- | В частотном преобразователе значения частоты представлены следующим образом - частоте 50Гц | + | To access any paramter you can use the formula: |
- | По [[ https:// | + | {{ network: |
- | {{:: | + | |
+ | Below are the register settings for controlling the VLT Micro drive FC51 frequency converter - start / stop, change of direction of rotation, speed reference. | ||
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+ | In the frequency converter, the frequency values are presented as follows: the frequency 50 Hz (100% of the scale) corresponds to the number 16384. Negative values are also a number in binary complementary form (two's complement). Therefore, to correctly display the frequency and its task for the registers, it is necessary to use the multiplier 50/16384 = 0.0030517578125, | ||
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+ | There is a [[ https:// | ||
+ | {{network: | ||
danfoss_control.1546607904.txt.gz · Last modified: 2019/01/04 13:18 by emozolyak