Siemens SINUMERIK 840C User Manual

Page 470

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09.95

7 Drive Machine Data (SIMODRIVE Drive MD)

7.2.2 FDD MD (data description - SW 3)

Torque constant

1113

Default value

Lower input limit

Upper input limit

Units

5

0.1

5

Nm/A

Active on

Power On

Input of torque constant as specified on the motor data sheet (non-Siemens motor) or
automatic parameterization using machine data "Motor code number" (MD 1102). The torque
constant is the quotient of rated torque : rated current (RMS) for permanent-field synchronous
motors.

Voltage constant

1114

Default value

Lower input limit

Upper input limit

Units

0

1

300

V

Active on

Power On

Input of voltage constant as specified on the motor data sheet (non-Siemens motor) or
automatic parameterization using machine data "Motor code number" (MD 1102). The voltage
constant is measured as an induced voltage (EMF) under no-load conditions at n = 1000
rev/min as the RMS value of the motor terminals (line-to-line).

Armature resistance

1115

Default value

Lower input limit

Upper input limit

Units

0

0

20

V/A

Active on

Power On

Input of ohmic resistance of the armature winding (phase value) as specified on the motor data
sheet (non-Siemens motor) or automatic parameterization using machine data "Motor code
number" (MD 1102).

Armature inductance

1116

Default value

Lower input limit

Upper input limit

Units

0

0

100

mH

Active on

Power On

Input of armature rotating-field inductance as specified on the motor data sheet (non-Siemens
motor) or automatic parameterization using machine data "Motor code number" (MD 1102).

Motor moment of inertia

1117

Default value

Lower input limit

Upper input limit

Units

0

0

32 (as from SW 5)

kgm

2

Active on

Power On

Input of motor moment of inertia as specified on the motor data sheet (non-Siemens motor) or
automatic parameterization using machine data "Motor code number" (MD 1102 - in motors
without a holding brake).

©

Siemens AG 1992 All Rights Reserved 6FC5197- AA50

7–55

SINUMERIK 840C (IA)

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