Operating Instructions

Siemens Industry, Inc. • 50 Siemens Application
24-hour support [phone] (Dial 2)
P3.9.2
Response to external
fault
0 3 2 701
0 = No action
1 = Alarm
2 = Fault (Stop according to
stop mode)
3 = Fault (Stop by coasting)
P3.9.3
Response to Input
phase fault
0 3 3 730 See above
P3.9.4 Undervoltage fault 0 1 0 727
0 = Fault stored in history
1 = Fault not stored in history
P3.9.5
Response to output
phase fault
0 3 2 702 See P3.9.2
P3.9.6
Motor thermal protec-
tion
0 3 2 704 See P3.9.2
P3.9.7
Motor ambient tem-
perature factor
-20.0 100.0 °C 40.0 705 Ambient temperature in °C
P3.9.8
Motor thermal zero
speed cooling
5.0 150.0 % 60.0 706
Defines the cooling factor at
zero speed in relation to the
point where the motor is run-
ning at nominal speed with-
out external cooling.
P3.9.9
Motor thermal time
constant
1 200 min Varies 707
The time constant is the time
within which the calculated
thermal stage has reached
63% of its final value.
P3.9.10 Motor thermal load 0 150 % 100 708
P3.9.11 Motor stall fault 0 3 0 709 See P3.9.2
P3.9.12 Stall current 0.00
2*I
H
A
I
H
710
For a stall stage to occur, the
current must have exceeded
this limit.
P3.9.13 Stall time limit 1.00 120.00 s 15.00 711
This is the maximum time
allowed for a stall stage.
P3.9.14 Stall frequency limit 1.00 P3.3.2 Hz 25.00 712
For a stall state to occur, the
output frequency must have
remained below this limit for
a certain time.
P3.9.15
Underload fault (bro-
ken belt/dry pump)
0 3 0 713 See P3.9.2
P3.9.16
Underload protection:
Field weakening area
load
10.0 150.0 % 50.0 714
This parameter gives the
value for the minimum torque
allowed when the output fre-
quency is above the field
weakening point.
P3.9.17
Underload protection:
Zero frequency load
5.0 150.0 % 10.0 715
This parameter gives value
for the minimum torque
allowed with zero frequency.
If you change the value of
parameter P3.1.1.4 this
parameter is automatically
restored to the default value.
P3.9.18
Underload protection:
Time limit
2.00 600.00 s 20.00 716
This is the maximum time
allowed for an underload
state to exist.
Table 39: Protections settings.
Code Parameter Min Max Unit Default ID Description