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CMVPFB01A
Cyclic Data Access - Dout Mapping
5.4.5 P44x = 4 or 7, Network Speed Setpoint
When P44x = 4, the Network Speed Setpoint is represented as an unsigned rpm value.
When P44x = 7, the Network Speed Setpoint is represented as a signed rpm value, Direction Control
Using one of these mappings along with the use of the correct Control Word Bits allows the drive speed
setpoint to be controlled from the network.
NOTE
While the values used do not have to be scaled for data transmission, RPM scaling is based
on P304 Motor Rated Frequency and P305 Motor Rated Speed.
Example: If P304 = 60Hz; P305 = 1750 RPM,
then request setpoint forward (CW) at 25.0 HZ = 25.0 x 1750/60 = 729 = 0x02D9
Example 1:
P44x = 4
Speed Setpoint value to be transmitted from the network master = 750rpm.
The actual value transmitted to the drive must be 750 (0x02EE).
Example 2:
P44x = 7
Speed Setpoint value to be transmitted from the network master = +750rpm.
The actual value transmitted to the drive must be 750 (0x02EE).
Speed Setpoint value to be transmitted from the network master = -333rpm.
The actual value transmitted to the drive must be -333 (0xFEB3).
If Reverse Direction is enabled, the drive will reverse as appropriate.
5.4.6 P44x = 5, Network PID Setpoint
The Network PID Setpoint is represented as a signed PID value in the range from -999 to 31000.
This mapping along with the use of the correct Control Word Bits allows the drive PID setpoint (when in PID
mode) to be controlled from the network.
5.4.7 P44x = 6, Network Torque Setpoint
The Network Torque Setpoint is represented as an unsigned percent value in the range from 0 to 400%.
This mapping along with the use of the correct Control Word Bits allows the drive torque setpoint (when in
torque mode) to be controlled from the network. The maximum torque value is 400%, however P330 can
be used to apply an overriding torque limit.
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