ABB ACS850 - Page 194

194 Parameters
Alarm Drive running:
The drive trips on SAFE TORQUE OFF when one or both of
the STO signals is lost.
Drive stopped
:
The drive generates a SAFE TORQUE OFF alarm if both
STO signals are absent. If only one of the signals is lost, the
drive trips on STO1 LOST or STO2 LOST.
2
No Drive running
:
The drive trips on SAFE TORQUE OFF when one or both of
the STO signals is lost.
Drive stopped
:
No action if both STO signals are absent. If only one of the
signals is lost, the drive trips on STO1 LOST or STO2 LOST.
3
Only Alarm The drive generates a SAFE TORQUE OFF alarm if both
STO signals are absent. If only one of the signals is lost, the
drive trips on STO1 LOST or STO2 LOST.
4
30.08 Cross connection Selects how the drive reacts to incorrect input power and
motor cable connection (i.e. input power cable is connected
to drive motor connection).
No No action taken. 0
Fault The drive trips on fault CABLE CROSS CON. 1
30.09 Stall function Selects how the drive reacts to a motor stall condition.
A stall condition is defined as follows:
• The drive is at stall current limit (30.10 Stall curr lim), and
• the output frequency is below the level set by parameter
30.11 Stall freq hi, and
• the conditions above have been valid longer than the time
set by parameter 30.12 Stall time.
See section Stall protection (parameters 30.09…30.12) on
page 84.
30.10 Stall curr lim Stall current limit in percent of the nominal current of the
motor. See parameter 30.09 Stall function.
0.0 … 1600.0% Stall current limit. 10 = 1%
30.11 Stall freq hi Stall frequency limit. See parameter 30.09 Stall function.
Note: Setting the limit below 10 Hz is not recommended.
0.5 … 1000.0 Hz Stall frequency limit. 10 = 1 Hz
30.12 Stall time Stall time. See parameter 30.09 Stall function.
0 … 3600 s Stall time. 1 = 1 s
No. Name/Value Description FbEq
Bit Function
0 Ena sup (Enable supervision)
0 = Disabled: Supervision disabled.
1 = Enabled: Supervision enabled.
1 Ena warn (Enable warning)
0 = Disabled
1 = Enabled: Drive generates an alarm upon a stall condition.
2 Ena fault (Enable fault)
0 = Disabled
1 = Enabled: Drive trips on a fault upon a stall condition.