Omron SX-F, Инструкция по эксплуатации

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147
Process and Application Parameters [300]
Section 11-3
Fig. 77 Jog command
11-3-6 Torques [350]
Menu with all parameters for torque settings.
Maximum Torque [351]
Sets the maximum motor torque (according to menu group Motor Data [220]).
This Maximum Torque operates as an upper torque limit. A Speed Reference
is always necessary to run the motor.
Communication information
Note 100% Torque means: I
NOM
= I
MOT
. The maximum depends on the motor
current and VSD max current settings, but the absolute maximum adjustment
is 400%. The maximum possible setting for parameter [351] is limited by
Inom/Imot * 120% but not higher than 400%.
Note The power loss in the motor will increase by the square of the torque when
operating above 100%. 400% torque will result in 1600% power loss, which
will increase the motor temperature very quickly.
IxR Compensation [352]
This function compensates for the drop in voltage over different resistances
such as (very) long motor cables, chokes and motor stator by increasing the
output voltage at a constant frequency. IxR Compensation is most important
at low frequencies and is used to obtain a higher starting torque. The maxi-
mum voltage increase is 25% of the nominal output voltage. See Fig. 78.
t
t
f
(NG_06-F18)
Jog
Freq
Jog
com-
mand
Default: 120% calculated from the motor data
Range: 0–400%
Modbus Instance no/
DeviceNet no:
43141
Profibus slot/index 169/45
EtherCAT index (hex) 4c45
Fieldbus format Long, 1=1%
Modbus format EInt
T
MOT
Nm
 
P
MOT
w
 
x60
n
MOT
rpm
 
x2

----------------------------------------- 100 = =
%
351 Max Torque
Stp
120%
A