Stop select 1, Current limit, Current lmt en – Rockwell Automation 1336 8A-48A Fiber Industry User Manual
Page 76: Overload mode, Overload amps
5–10
Programming
[Stop Select 1]
This parameter selects the stopping mode when the
drive receives a valid stop command unless
[Stop Select 2] is selected.
Parameter Number
10
Parameter Type
Read and Write
Factory Default
“Coast”
Units
Display Drive
“Coast” 0
Causes the drive to turn off immediately.
“DC Brake” 1
Injects DC braking voltage into the motor.
Requires a value in both [DC Hold Time]
& [DC Hold Level].
“Ramp” 2
Drive decelerates to 0 Hz, then if [DC
Hold Time] & [DC Hold Level] are greater
than zero the holding brake is applied. If
the values equal zero, then the drive
turns off. Requires a value in [Decel Time
1] or [Decel Time 2].
“S Curve” 3
Drive causes S Curve Ramp to 0 Hz in
[Decel Time 1] or [Decel Time 2] x 2.
[Current Limit]
This parameter sets the maximum drive output
current that is allowed before current limiting occurs.
Parameter Number
36
Parameter Type
Read and Write
Display Units / Drive Units 1% of Max Drive Output Current / 4096 = 100%
Factory Default
150%
Minimum Value
20% of [Rated Amps]
Maximum Value
160% of [Rated Amps]
[Current Lmt En]
This parameter enables the current limit function.
Parameter Number
198
Parameter Type
Read and Write
Factory Default
“Enabled”
Units
Display Drive
“Disabled” 0
“Enabled” 1
[Overload Mode]
This parameter selects the derating factor for the I
2
T
electronic motor overload function. Motors designed
to operate with wider speed ranges need less
overload derating.
Parameter Number
37
Parameter Type
Read and Write
Factory Default
“Max Derate”
Units
Display Drive
“Max Derate” 2
2:1 Speed Range Derate below
50% of Base Speed
“Min Derate” 1
4:1 Speed Range. Derate below
25% of Base Speed
“No Derate” 0
10:1 Speed Range. No Derating
[Overload Amps]
This value should be set to the motor nameplate Full
Load Amps (FLA) for 1.0 SF motors. The value
should be set to 1.15 x nameplate FLA for 1.15 SF
motors.
Parameter Number
38
Parameter Type
Read and Write
Display Units / Drive Units
0.1 Amps / 4096 = Rated Amps
Factory Default
115% of Drive Rating
Minimum Value
20% of Drive Rated Amps
Maximum Value
115% of Drive Rated Amps
% of Load
% of Base Speed
Min Derate
0
80
100
60
40
20
0
200
175
150
125
100
75
50
25
% of Load
% of Base Speed
No Derate
0
80
100
60
40
20
0
200
175
150
125
100
75
50
25
% of Load
% of Base Speed
Max Derate
0
80
100
60
40
20
0
200
175
150
125
100
75
50
25
Overload Patterns
Setup