Owner's manual

5–12 Programming
[Current Lmt Sel]– Firmware 4.01 & later
Selects the source of the [Current Limit] setting for
the drive. When an external input is selected (0-10V
or 4-20 mA), the minimum signal (0V or 4 mA) sets
20% current limit and the maximum signal (10V or
20mA) sets the value programmed in [Current Limit].
This parameter cannot be changed while the drive is
running.
Parameter Number 232
Parameter Type Read and Write
Factory Default “Current Lmt”
Units Display Drive
“Current Lmt” 0
Use [Current Limit], param. 36.
“0-10 Volt” 1 Adjustable through 10V input, TB2,
4 & 5.
“4-20 mA” 2 Adjustable through 4-20mA input,
TB2, 4 & 6.
[Adaptive I Lim] – Firmware 4.01 & later
When ENABLED, this parameter maintains normal
current limit control to provide normal acceleration
into medium to high system inertia.
When DISABLED, this parameter applies a feed
forward command to acceleration, allowing quicker
accel times from stopped to commanded speed with
low system inertia
.
Parameter Number 227
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 overload function. Motors designed to
operate with wider speed ranges need less overload
derating.
Parameter Number 37
Parameter Type Read and Write
Factory Default “No Derate” (“Max Derate” frn<4.01)
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
Min Derate
0
80
100
60
40
20
% of Load% of Load % of Load
No Derate
0
80
100
60
40
20
% of Base Speed
Max Derate
0
80
100
60
40
20
0
200
175
150
125100755025
Overload Patterns
1 10
1
10
100
1000
Time to Trip vs. Current (Firmware 4.01 & Up)
Multiple of [Overload Amps]
Time to Trip - Seconds
115%
Cold
Hot
Setup