LAFERT HP Combi Flow - Page 58

58 | HPI Combi Flow User Guide | Version 3.11 www.lafert.com
Register
Number
Higher
Byte
Lower
Byte
Read
Write
Notes
7 Output Frequency R Output frequency of the drive to one decimal place, e.g.123 = 12.3 Hz.
8 Output Current R Output current of the drive to one decimal place, e.g.105 = 10.5 Amps.
9 Output Torque R Motor output torque level to one decimal place, e.g. 474 = 47.4 %.
10 Output Power R Output power of the drive to two decimal places, e.g.1100 = 11.00 kW.
11 Digital Input Status R Represents the status of the drive inputs where Bit 0 = Digital Input 1 etc.
20 Analog 1 Level R Analog Input 1 Applied Signal level in % to one decimal place, e.g. 1000 = 100.0%.
21 Analog 2 Level R Analog Input 2 Applied Signal level in % to one decimal place, e.g. 1000 = 100.0%.
22 Pre Ramp Speed Reference R Internal drive frequency set-point.
23 DC Link Voltage R Measured DC Link Voltage VDC (P0-20).
24 Drive Temperature R Measured Heatsink Temperature in °C (P0-21).
30 kWh Meter (User Resettable) R User resettable energy meter kWh (P0-26).
31 MWh Meter (User Resettable) R User resettable energy meter MWh (P0-27).
32 kWh Meter (Non Resettable) R Non resettable energy meter kWh (P0-26).
33 MWh Meter (Non Resettable) R Non resettable energy meter MWh (P0-27).
34 Running Time – Hours R Total running time (Hours) (P0-31).
35 Running Time – Min & Sec R Total Running Time (Minutes & Seconds) (P0-31).
10.2.3. Modbus Parameter Access
All User Adjustable parameters (Groups 1 to 5) are accessible by Modbus, except those that would directly affect the Modbus
communications, e.g.
  P5-01 Drive Fieldbus Address – see also P5-16 Drive Modbus Address.
  P5-03 Modbus RTU Baud Rate.
  P5-04 Modbus RTU Data Format.
All parameter values can be read from the drive and written to, depending on the operating mode of the drive – some parameters
cannot be changed whilst the drive is enabled for example.
When accessing a drive parameter via Modbus, the Register number for the parameter is the same as the parameter number,
e.g. Parameter P1-01 = Modbus Register 101.
Modbus RTU supports sixteen bit integer values, hence where a decimal point is used in the drive parameter, the register value will be
multiplied by a factor of ten,
e.g. Read Value of P1-01 = 500, therefore this is 50.0Hz.
For further details on communicating with the HP Combi Flow using Modbus RTU, please refer to the Lafert Group Technical
Department.
10
Serial Communications