Chapter 6 Command Reference - 99 -
DMTRES
Motor Winding Resistance
Type
Motor
Product Rev
Syntax
<a_>DMTRES<r>
Aries 1.0
Units
r = Ohm (measured line-to-line)
Range
Ø.ØØ to 10Ø.ØØ : ±Ø.Ø1
Default
Ø.ØØ (DMTRES of Ø results in motor configuration
error)
Response
DMTRES: <*>7.5Ø
See Also
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
E1–Motor Configuration Error
and
E6–Resistance = Ø
, and shuts down the drive.
For a list of automatically configured commands, see
DMTR
.
The
DMTRES
command sets the motor winding resistance. This resistance
value is measured at 25°C at the
drive end
of the motor cable (motor cable
included). This resistance is the phase-to-phase resistance measured at
terminals U to V, V to W, or W to U.
Warning —
Disconnect the motor cable from the drive before attempting to
make this measurement. For best accuracy, and to avoid injury, this
measurement must be made with the motor cable disconnected from the
drive.
DMTRWC
Motor Winding Thermal Resistance
Type
Motor
Product Rev
Syntax
<a_>DMTRWC<r>
Aries 1.0
Units
r = Degrees Celsius/Watt (
°
C/W)
Range
Ø.ØØ to 16.ØØ : ±Ø.Ø1
Default
Ø.5Ø
Response
DMTRWC: <*>23.6Ø
See Also
DMTR
,
DMTTCM
,
DMTTCW
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
.
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