P0681 - Motor Speed In 13 Bits - WEG CFW500 User Manual

Bits
Bits 0 to 3
Bit 4
Active quick stop
Bit 5
Second ramp
Bit 6
In configuration mode
Bit 7
Alarm condition
Bit 8
Motor Running
Bit 9
Active General Enable
Bit 10
Speed direction
Bit 11
JOG
Bit 12
LOC/REM
Bit 13
Undervoltage
Bit 14
Manual/ Automatic
Bit 15
Fault condition
P0681 – MOTOR SPEED IN 13 BITS
Range:
- 32768 to 32767
Properties: RO
Access groups via HMI:
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)

P0681 = 2000h (8192 decimal)

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
Frequency in Hz = 30 Hz
Negative values in this parameter indicate that the motor is running in the reverse direction.
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Table 4.2: P0680 parameter bit functions
Reserved.
0: The fast stop command is not active.
1: The drive is executing the fast stop command.
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.
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
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.
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.
0: General Enable is not active.
1: General Enable is active and the drive is ready to run the motor.
0: The motor is running in the reverse direction.
1: The motor is running in the forward direction.
0: Inactive JOG function.
1: Active JOG function.
0: Drive in Local mode.
1: Drive in Remote mode.
0: No Undervoltage.
1: With Undervoltage.
0: PID in manual mode.
1: PID in Automatic mode.
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.
NET
→ motor speed = 0
→ motor speed = rated frequency
8192
Values
Default: -