YASKAWA Varispeed G7 Manuel d'utilisateur Page 293

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 367
  • Table des matières
  • DEPANNAGE
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 292
6-120
6
The direction of the torque output from the motor will be determined by the sign of the analog signal input or
a digital input command. It does not depend on the direction of the run command. The direction of torque will
be as follows:
Positive analog reference: Torque reference for forward motor rotation (counterclockwise as viewed from
the motor output axis).
Negative analog reference: Torque reference for reverse motor rotation (clockwise as viewed from the
motor output axis).
Inputting the Speed Limit
The inputs methods for a speed limit are listed in the following table.
The direction in which speed is controlled is determined by the sign of the speed limit signal and the direction
of the run command.
Positive voltage applied: The speed in the forward direction will be limited for forward operation.
Negative voltage applied: The speed in the reverse direction will be limited for reverse operation.
If the direction of the motor rotation and the speed limit direction are not the same, the speed will be limited
to 0.
Digital Output Functions (H2-01 to H2-03)
During Speed Limit (“31”)
If a digital output is set for this function the output is activated, if the output speed is at the speed limit.
ASR active for Torque Control (“32”)
Using this output function a digital output can be used to monitor the status of the speed limit function. The
output is switched:
ON, if the torque reference is taken from the ASR output and the motor is operating at the speed limit
OFF, if the torque reference is taken from the analog input
Speed Limit Input Method
Location of Refer-
ence
Parameter
Settings
Remarks
Parameter setting Set in d5-04 d5-03 = 2 -
Voltage input (0 to +10 V) Analog input A1
b1-01 = 1
H3-01 = 0
Use this setting if the speed limit has
always to be positive.
Voltage input (-10 to +10 V) Analog input A1
b1-01 = 1
H3-01 = 1
Use this setting when a speed limit for
both directions has to be applied.
Current input (4 to 20 mA) Analog input A2
b1-01 = 1
H3-08 = 2
H3-09 = 13
H3-13 = 1
Terminal A1 becomes the torque refer-
ence value.
Turn ON (I side) pin 2 of DIP switch S1
on the terminal board.
Option Card (AI-14B)
(0 to ±10 V)
Channel 1
b1-01 = 1
F2-01 = 0
Channel 1 of the AI-14B card replaces
analog input A1
Channel 1 to 3
b1-01 = 3
F2-01 = 1
The sum of the channels 1 to 3 is taken as
speed limit.
Vue de la page 292
1 2 ... 288 289 290 291 292 293 294 295 296 297 298 ... 366 367

Commentaires sur ces manuels

Pas de commentaire