Omron SYSDRIVE 3G3FV

6-3
Group Control mode CommentsFunctionGroup
Flux
Vector
Open-loop
Vector
V/f
w/PG
V/f
CommentsFunction
Terminal
H1 Digital Inputs Function selection for multi-function inputs OK OK OK OK
ea
H2 Digital Outputs Function selection for multi-function outputs OK OK OK OK
H3 Analog Inputs Adjustment/function selection for external analog inputs OK OK OK OK
H4 Analog Outputs Adjustment/function selection for multi-function analog
outputs
OK OK OK OK
H5 Serial Com Setup Not Used. (Do not change this setting.) --- --- --- ---
Protection
L1 Motor Overload Sets electrical/thermal functions that protect the motor . OK OK OK OK
oec o
L2 PwrLoss Ridethru Selects the power-loss processing method. OK OK OK OK
L3 Stall Prevention Accel/Decel stall prevention settings and selection OK OK OK OK
L4 Ref Detection Frequency detection settings and selection OK OK OK OK
L5 Fault Restart Fault restart function settings OK OK OK OK
L6 T orque Detection Sets overtorque detection functions 1 and 2 (by torque) OK OK OK OK
L7 T orque Limit S T orque limit settings --- --- OK OK
L8 Hdwe Protection Hardware overheating and phase loss protection settings OK OK OK OK
Operator
o1 Monitor Select Selects the Operator ’ s display and setting methods. OK OK OK OK
Oeao
o2 Key Selections Operator’ s key function selection and other parameters OK OK OK OK
6-1-2 Torque Limit Function
With open-loop vector control, the torque limit can be applied at an arbitrary value be -
cause the torque output by the motor is calculated internally.
The
torque limit function is useful when the load cannot sustain a torque above a certain
level or regenerative torque above a certain level. The two ways to apply a torque limit
are listed below . (The lower torque limit will be used if both of these methods are set.)
1) Setting a torque limit with the parameters
2) Limiting torque with the analog inputs
The
precision of the torque limit is ± 5% for output frequencies above 10 Hz, but the preci -
sion
is lower for output frequencies below 10 Hz. Use flux vector control if you want to
apply a torque limit at low-speed (below 10 Hz).
H Setting a Torque Limit with Parameters
Torque limits can be set separately for the 4 ways that torque can be applied: forward torque, reverse
torque, forward regenerative torque, and reverse forward regenerative torque. These parameters can -
not be changed during operation.
Parameter Display name Setting Units Default
Valid access levels
number
py
g
range setting
V/f
Control
V/f with
PG
Open Loop
Vector
Flux
Vector
L7-01 Torque Limit Fwd
0 to 300 % 200 Not applicable Basic or Advanced
L7-02 Torque Limit Rev
L7-03 Torque Limit Fwd Rgn
L7-04 Torque Limit Rev Rgn
Advanced Operation Chapter 6