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Parker Hannifin
Chapter 6 Command Reference 105
DMTAMB
Motor Ambient Temperature
Type
Motor
Product Rev
Syntax
<a_>DMTAMB<r>
Aries 1.0
Units
r = Degrees Celsius
Range
-5Ø.ØØ to 25Ø.ØØ : ±Ø.Ø1
Default
4Ø.Ø
Response
DMTAMB: <*>4Ø.Ø
See Also
DMTMAX, DMTRWC, DMTTCM, DMTTCW
The DMTAMB command sets the motor ambient temperature used by the
software motor thermal model. The DMTAMB value, in conjunction with the
motor thermal time constant (DMTTCM), the motor winding time constant
(DMTTCW), the motor thermal resistance (DMTRWC) and the continuous motor
current (DMTIC), is used in a real-time estimation of the motor winding
temperature. When the winding temperature exceeds DMTMAX, the drive
faults and reports E35–Motor Thermal Fault.
DMTD
Motor Damping
Type
Motor
Product Rev
Syntax
<a_><!>DMTD<r> (does not take effect until RESET or
cycle power)
Aries 2.0
Units
Rotary motor: r = uNm/rad/sec
Linear motor: r = N/meter/sec
Range
Rotary motor: Ø.ØØØØØØ to 1ØØØØ : ±1
Linear motor: DMEPIT (electrical pitch) dependent
Default
Ø.ØØØØØØ
Response
DMTD: *DMTD2ØØ
See Also
DMTR
Note: This command does not take effect until you cycle power to the drive,
or send the RESET command.
Aut
o-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 DMTD command specifies the damping of the motor itself. This includes
both magnetic losses and bearing losses.