HEIDENHAIN MANUALPLUS 620 - Page 1078

1078 HEIDENHAIN Technical Manual MANUALplus 620
Entries in the power
module table
(inverter.inv)
 NAME: Designation of the power module
 PWM: PWM frequency in [Hz] at which the power module is driven
 S: Switch position of the current sensor. Is required for the D series of
HEIDENHAIN inverters (UM 1xx D) in order to use the higher currents
named above at the lower PWM frequencies.
Input 0 or 1
 I-MAX: Maximum current of the inverter output in [A]
 I-N: Rated current of the inverter output in [A]
 U-IMAX: Current sensor voltage in [V] at I-MAX
 I-N-DC: Permissible continuous current in stationary rotating field or until F-
DC is reached in [A]
 T-DC: Time constant, how long maximum current can be applied to a
stationary synchronous motor in [s]
 F-DC: Lower motor cutoff frequency down to which the motor can be loaded
with I-N-DC in Hz
 T-AC: Cycle duration for the duty cycle S6-40% s
 F-AC: Motor frequency from which I-MAX is permissible in s
 T-IGBT: Protection time of the IGBTs in [s]
 R-SENSOR: Resistance of the current sensor. The entries in this column are
maintained by HEIDENHAIN and need not be changed by the machine tool
builder.
 F-Limit: Lower frequency limit
 D-I-MEAS: Method of measured value acquisition by the current sensor
• 0: No digital measured value acquisition
• 1: Measured value of the current sensor in the power module is
transferred via a digital interface to the CC.
Entries in the motor
table (motor.mot)
 TYPE: Motor model
• UASM = uncontrolled asynchronous motor (volts-per-hertz control
mode)
• SM = synchronous motor
• ASM = asynchronous motor
• LSM = linear motor
 NAME: Designation of the motor
 MODE: Operating mode
 I-N: Rated current in A
 U-N: Rated voltage in V
 N-N: Rated speed in min
–1
 F-N: Rated frequency in Hz
 U0: No-load voltage in V
 I0: No-load current in A
 R1: Stator resistance cold in mΩ
 R2: Rotor resistance cold in mΩ
 XStr1: Stator leakage reactance in mΩ
 XStr2: Rotor leakage reactance in mΩ
 XH: Magnetizing reactance in mΩ
 N-XH: Upper speed X-H characteristic in min
–1
 N-FS: Threshold rpm for field weakening in min
–1
 N-MAX: Maximum speed in min
–1