WEG DeviceNet CFW500 - P0681 - Motor Speed in 13 Bits

Table 4.2: P0680 parameter bit functions
Bits
Values
Bits 0 to 3
Reserved.
Bit 4
Active quick stop
0: The fast stop command is not active.
1: The drive is executing the fast stop command.
Bit 5
Second ramp
0: The drive is configured to use the first ramp values, programmed in P0100 and P0101, as the motor
acceleration and deceleration ramp times.
1: The drive is configured to use the second ramp values, programmed in P0102 and P0103, as the motor
acceleration and deceleration ramp times.
Bit 6
In configuration mode
0: The drive is operating normally.
1: The drive is in the configuration mode. It indicates a special condition during which the drive cannot be
enabled:
Executing the self-tuning routine
Executing the oriented start-up routine
Executing the HMI copy function
Executing the flash memory card self-guided routine
There is a parameter setting incompatibility
There is no power at the drive power section
Bit 7
Alarm condition
0: The drive is not in alarm condition.
1: The drive is in alarm condition.
Note: The alarm number can be read by means of the parameter P0048 – Present Alarm.
Bit 8
Motor Running
0: The motor is stopped.
1: The drive is running the motor at the set point speed, or executing either the acceleration or the
deceleration ramp.
Bit 9
Active General Enable
0: General Enable is not active.
1: General Enable is active and the drive is ready to run the motor.
Bit 10
Speed direction
0: The motor is running in the reverse direction.
1: The motor is running in the forward direction.
Bit 11
JOG
0: Inactive JOG function.
1: Active JOG function.
Bit 12
LOC/REM
0: Drive in Local mode.
1: Drive in Remote mode.
Bit 13
Undervoltage
0: No Undervoltage.
1: With Undervoltage.
Bit 14
Manual/ Automatic
0: PID in manual mode.
1: PID in Automatic mode.
Bit 15
Fault condition
0: The drive is not in a fault condition.
1: The drive has detected a fault.
Note: The fault number can be read by means of the parameter P0049 – Present Fault.
P0681 – MOTOR SPEED IN 13 BITS
Range: - 32768 to 32767 Default: -
Properties: RO
Access groups via HMI: NET
Description:
It allows monitoring the motor speed. This word uses 13-bit resolution with signal to represent the motor rated
frequency (P0403):
 P0681 = 0000h (0 decimal) → motor speed = 0
 P0681 = 2000h (8192 decimal) → motor speed = rated frequency
Intermediate or higher speed values in rpm can be obtained by using this scale. E.g.60Hz rated frequency if the
value read is 2048 (0800h), then, to obtain the speed in Hz one must calculate:
8192 => 60 Hz
2048 => Frequency in Hz
Frequency in Hz = 60 × 2048
8192
Frequency in Hz = 30 Hz
Negative values in this parameter indicate that the motor is running in the reverse direction.
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