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| 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
