Invertek Drives Optidrive ODP-2 User Manual page 62

Register
Upper Byte Lower Byte
Number
1 Command Control Word
2 Command Speed Reference
3 Command Torque Reference
4 Command Ramp times
6 Error code
7 Output Frequency
8 Output Current
9 Output Torque
10 Output Power
1 1 Digital Input Status
20 Analog 1 Level
21 Analog 2 Level
22 Pre Ramp Speed Reference
23 DC bus voltages
24 Drive temperature
9.2.3. 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.
9
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.
62 | Optidrive P2 User Guide | Version 3.00
Read
Notes
Write
Command control word used to control the Optidrive when operating with Modbus
RTU. The Control Word bit functions are as follows:
Bit 0 : Run/Stop command. Set to 1 to enable the drive. Set to 0 to stop the drive.
Bit 1 : Fast stop request. Set to 1 to enable drive to stop with 2nd deceleration ramp.
R/W
Bit 2 : Reset request. Set to 1 in order to reset any active faults or trips on the drive.
This bit must be reset to zero once the fault has been cleared.
Bit 3 : Coast stop request. Set to 1 to issue a coast stop command.
R/W Setpoint must be sent to the drive in Hz to one decimal place, e.g. 500 = 50.0Hz.
R/W Setpoint must be sent to the drive in % to one decimal place, e.g. 2000 = 200.0%.
This register specifies the drive acceleration and deceleration ramp times used when
R/W 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).
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
Drive status R
Bit 5 : 0 = Not In Standby (Sleep), 1 = Standby (Sleep) mode active
Bit 6 : No function
Bit 7 : 0 = Normal condition, 1 = Low or High Load condition detected
The Upper Byte will contain the relevant fault number in the event of a drive trip.
Refer to section 1 1. 1 . Fault Messages for a list of fault codes and diagnostic information.
Bit 8 : No Function
The Upper Byte will contain the relevant fault number in the event of a drive trip.
Refer to section 1 1. 1 . Fault Messages for a list of fault codes and diagnostic information.
R Output frequency of the drive to one decimal place, e.g. 1 23 = 12.3 Hz.
R Output current of the drive to one decimal place, e.g. 1 05 = 10.5 Amps.
R Motor output torque level to one decimal place, e.g. 474 = 47.4 %.
R Output power of the drive to two decimal places, e.g. 1 100 = 1 1.00 kW.
R Represents the status of the drive inputs where Bit 0 = Digital Input 1 etc.
R Analog Input 1 Applied Signal level in % to one decimal place, e.g. 1000 = 100.0%.
R Analog Input 2 Applied Signal level in % to one decimal place, e.g. 1000 = 100.0%.
R Internal drive frequency setpoint.
R Measured DC Bus Voltage in Volts.
R Measured Heatsink Temperature in °C.
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