Rockwell Automation 8720MC Drives Integration Manual User Manual

Page 184

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Publication 8720MC-IN002A-EN-P — December 2002

C-72

Programming Parameters

Name: R1-Motor_Stator

Data Type: unsigned Integer

R/W

Parameter No.
787
File:
Motor/Drive
Group:
Motor Data

Description: This parameter defines the per unit stator phase to neutral resistance R

1

@ 25° C in % (for

asynchronous 8720SM motors). This parameter is set to zero for synchronous motors (MPL-B8xxx/-B9xxx).

Default:
per motor

Length
2 byte

Minimum/Maximum
Min.

≥ 0

Max.

≤ +30.000

Scaling Resolution

10

-3

Units
%

Name: R2-Motor_Rotor

Data Type: Unsigned Integer

R/W

Parameter No.
788
File:
Motor/Drive
Group:
Motor Data

Description: This parameter defines the per unit rotor phase to neutral resistance as referred to the stator @ 25°
C in % (for asynchronous 8720SM motors). This parameter is set to zero for synchronous motors (MPL-B8xxx/
-B9xxx).

Default:
per motor

Length
2 bytes

Minimum/Maximum
Min.

≥ 0

Max.

≤ +30.000

Scaling Resolution

10

-3

Units
%

Name: X1-Stat_Self/Lk

Data Type: Unsigned Integer

R/W

Parameter No.
789
File:
Motor/Drive
Group:
Motor Data

Description: This parameter defines the per unit motor stator leakage reactance at base frequency.

Default:
per motor

Length
2 bytes

Minimum/Maximum
Min.

≥ 0

Max.

≤ +30.000

Scaling Resolution

10

-3

Units
%

Name: XM-Stator Mutual

Data Type: unsigned Integer

R/W

Parameter No.
790
File:
Motor/Drive/
Fdbk
Group:
Motor Data

Description: This parameter defines the per unit asynchronous motor (8720SM) stator magnetizing reactance @
base frequency, phase to neutral. This is also the per unit synchronous motor (MPL-B8xxx/-B9xxx) stator
magnetizing reactance at 1000 rpm (phase to neutral)

Default:
per motor

Length
2 byte

Minimum/Maximum
Min.

≥ 0

Max.

≤ +300.00

Scaling Resolution

10

-2

Units
%

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