
u r
P I— (Protection Parameters)
5t Cl
UP5L Trip function selections
1 1
L_ L-
P
Dt 5L
u tz
L
b r C L
Related parameters
5LC 1
Stall protection
StL 1
UP5L
Undervoltage trip selection
UPt
LLP
Low current detection selection
LLPt
LLPC
Low current detection level
b r C L
DtSL
Overtorque trip selection
DLL
Stall protection level
Undervoltage detection time
Low current detection time
Fault trip saving
Overtorque trip level
The stall protection, undervoltage trip, low current detection and overtorque trip functions can be selectively
enabled/disabled.
Parameter
Standard
setting
Function When set to 1
5bC 1
D
Stall protection ON. Stall protection OFF.
UPSL
D
Undervoltage trip disabled. Undervoltage trip enabled.
LLP
a
Low current trip disabled.
Low current trip enabled.
Dt5L D
Overtorque trip disabled.
Overtorque trip enabled.
★ By setting the fault trip saving function | t: r CL , when a trip occurs, whether or not the trip will be
maintained or cleared when the inverter is powered OFF can be selected.
A low current condition is detected when the inverter output current is less than the
low current detection level | L L P C~| for a duration exceeding the low current
detection time LLPt
IJl.
n I
5 Output short circuit detection selection
This parameter allows the selection of the method for detecting an output short circuit, dependent upon the
motor and usage conditions.
OC L S set to D: Standard ... Detection is executed upon start-up.
DC L 5 set to J : For high-speed motor use ... Because a high-speed motor’s inductance is small, the
detection method is altered to prevent nuisance trips.
DCL 5 set to2 : For positioning ... Detection is performed during initialization after power is turned ON.
This is used to improve positioning accuracy during JOG, because the
positioning will deviate with the output short-circuit check pulses.
0 C L 5 set to 3 : For high-speed motor positioning
★ This function only changes the method for evaluating an overcurrent trip. Overcurrent protection will still
always be in effect.
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