danfoss_control
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danfoss_control [2019/01/04 13:09] – created 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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- | Преобразователи частоты | + | Danfoss |
- | 8-31 Сетевой адрес, [1..247] | + | |
- | 8-32 Скорость обмена , [0..4] (2400..38400 соответственно) | + | |
- | 8-33 Контроль по четности и стоп-бит [0..3] ( Even.1; Odd,1;No parity ,1; No parity, 2) | + | |
- | При изменении протокола обмена, | + | |
- | 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 | + | Other communication parameters are in the same 8th group: |
- | задание частоты через Bus reference register (REF) по адресу HR50009 | + | *8-31 Bus address, [1..247] |
- | контроль состояния | + | *8-32 Baud rate, [0..4] (2400..38400 respectively) |
- | фактическая частота вращения | + | *8-33 Parity and stop bit [0..3] ( Even, 1 stop; Odd, 1 stop ;No parity, 1 stop; No parity, 2) |
- | 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, необходимо указывать в настройках регистра со смещением -1. Например, Bus reference register (REF) в документации имеет адрес 50000, но в запросе modbus он будет в виде 49999 (HR49999 в настройках регистров WebHMI). | + | |
- | {{:: | + | 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). |
- | Для модификации произвольного параметра преобразователя частоты, | + | The drive can only be controll via Modbus when it is switched from Hand to Auto mode. |
- | {{ :: | + | There might be a case, when actual frequency differs from the setpoint by a certain level. |
- | Ниже приведены настройки регистров для управления преобразователем частоты VLT Micro drive FC51 - пуск / останов, | + | The drive is controled and monitored via: |
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- | В частотном преобразователе значения частоты представлены следующим образом | + | ***CTW** control word - start, stop, configuration etc. accessible bitwise on C0..C15 addresses with Read coils or HR49999 with holding register read |
+ | ***REF** Bus reference register | ||
+ | ***STW** status word - accessible bitwise on C32..C47 addresses with Read coils or HR50199 with holding register read | ||
+ | ***MAV** actual frequency HR50209. | ||
- | По [[ https:// | + | 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. |
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+ | To access any paramter you can use the formula: (Pr.Num. * 10 - 1). E.g. 8-31 (bus address) will equal 831*10 - 1 = 8309. | ||
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+ | 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.1546607396.txt.gz · Last modified: 2019/01/04 13:09 by emozolyak