ABB ACH550-01 User Manual page 253

Code Description
I /I
O N
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 0.2 0.4
3010 STALL FUNCTION
This parameter defines the operation of the Stall function. This
protection is active if the drive operates in the stall region (see the
figure) for the time defined by 3012
defined in scalar mode by 2003
in vector mode by 2017
limit on the
COMM
0 = – Stall protection is not used.
NOT SEL
1 = – When the drive operates in the stall region for the time set
FAULT
by 3012
STALL TIME
• The drive coasts to stop.
• A fault indication is displayed.
2 = – When the drive operates in the stall region for the time set
ALARM
by 3012
STALL TIME
• An alarm indication is displayed.
• The alarm disappears when the drive is out of the stall region for half
the time set by parameter 3012
248
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A
60 s
90 s
180 s 180 s
300 s
600 s
∞
f /f
O
0.6 0.8 1.0 1.2
MAX CURRENT
MAX TORQUE
input.
:
:
Torque/
Current
Stall region
95%
User
limit
ACH550-01 User's Manual
Range
I = Output current
O
I = Nominal motor current
N
f = Output frequency
O
f = Break point frequency
BRK
A = Trip time
BRK
0...2
. The "User limit" is
STALL TIME
in Group 20:
1 and 2018
MAX TORQUE
.
STALL TIME
f
P 3011
Stall frequency
Parameter listing and descriptions
LIMITS, and
2, or the