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| Optidrive ODP-2 Solar Pump User Guide |
Version 2.04
www.invertekdrives.com
Register
Number Upper Byte Lower Byte
Read
Write
Notes
4
Command Ramp times
R/W
This register specifies the drive acceleration and deceleration ramp times used when
Fieldbus Ramp Control is selected (P5-08 = 1) irrespective of the setting of P1-12. The
input data range is from 0 to 60000 (0.00s to 600.00s).
6
Error code
Drive status
R
This register contains 2 bytes.
The Lower Byte contains an 8 bit drive status word as follows:
Bit 0 : 0 = Drive Disabled (Stopped), 1 = Drive Enabled (Running)
Bit 1 : 0 = Drive Healthy, 1 = Drive Tripped
Bit 2 : No Function
Bit 3 : Drive Ready, 1 = Drive Inhibit
Bit 4 : Maintenance Time Not Reached, 1 = Maintenance Time Reached
Bit 5 : 0 = Not In Standby (Sleep), 1 = Standby (Sleep) mode active
Bit 6 : Drive Ready
Bit 7 : 0 = Normal condition, 1 = Low or High Load condition detected
Bit 15 (upper byte) : 0 = Normal condition, 1 = Low Power Standby active
The Upper Byte (with the exclusion of Bit 15, will contain the relevant fault number in the
event of a drive trip. Refer to section
diagnostic information.
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 setpoint
23
DC bus voltages
R
Measured DC Bus Voltage in Volts
24
Drive temperature
R
Measured Heatsink Temperature in °C
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
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.
Some parameters are internally scaled, for further information refer to the Optidrive P2 Modbus Register Map Application Note, or
Advanced User Guide.
E.g. Parameter P1-03 = Modbus Holding Register 103.
Since Modbus RTU supports sixteen bit integer values only, and the parameter is adjustable to one decimal place, the register value
will be multiplied by a factor of ten,
E.g. Read Value of P1-03 = 50, therefore this is 5.0 seconds.
Serial Communications
10
