Parker Hannifin 88-021610-01G - Manual (Page 117)

Parker Hannifin
Chapter 6 Command Reference 117
application. Note also that the time constant of the motor winding itself
(DMTTCW) is much faster than this; therefore, the rise in winding temperature
will initially be much faster than DMTTCM would suggest.
DMTTCW Motor Winding Time Constant
Type Motor Product Rev
Syntax <a_>DMTTCW<r> Aries 1.0
Units r = minutes
Range Ш.ШШ to 6Ш.ШШ : ±Ш.Ш1
Default Ш.ШШ
Response DMTTCW: <*>28.4Ø
See Also DMTR , DMTRWC , DMTTCM
Auto-Setup : When using a Parker motor and the Aries Support Tool, this
command is automatically set for the selected motor.
If you did not use the Aries Support Tool, are using non-Parker motors, or
sent an RFS command to the drive, the parameter is set to zero (0)—you
must manually set this parameter to a non-zero number.
For a list of auto-configured commands, see
DMTR .
The DMTTCW command specifies the time constant of the motor winding
alone. This is the time for the winding to reach 63% of its final temperature
rise above the rest of the motor, given constant power. Note that this is not
the time constant usually specified in motor data sheets (see DMTTCM); the
DMTTCW value is typically much faster.
DMTW Motor Rated Speed
Type Motor Product Rev
Syntax <a_>DMTW<r> Aries 1.0
Units Rotary motor: r = revolutions/second
Linear motor: r = meters/second
Range Ш.Ш to 400.Ш : ±Ш.1
Default Ш.Ш (DMTW of Ø results in motor configuration error)
Response DMTW: <*>15Ш.Ш
See Also DMEPIT , DMTICD , DMTR
Auto-Setup : When using a Parker motor and the Aries Support Tool, this
command is automatically set for the selected motor.
If you did not use the Aries Support Tool, are using non-Parker motors, or
sent an RFS command to the drive, the parameter is set to zero (0)—you
must manually set this parameter to a non-zero number. Otherwise, the drive
reports the configuration errors EØ–Motor Configuration Warning and
E4–Rated Speed = Ø, and shuts down the drive.
For a list of automatically configured commands, see
DMTR .
The DMTW command specifies the rated speed of the motor. This is the lesser
of the following:
• (Rotary motor) Motor mechanical limited speed