Siemens SIRIUS 3RW44 - Selecting Motor Protection Settings

Commissioning
SIRIUS 3RW44 System Manual
GWA 4NEB 535 2195-02 DS 04
5-31
5.4.9 Selecting Motor Protection Settings
Figure 5-24:Selecting motor protection settings
Notice
In the case of heavy starting and set values of the tripping class
≥ CLASS 20, we recommend setting the "Prewarning
limit tripping reserve" parameter value to 0 s (deactivated) and increasing the parameter "Prewarning motor
temperature" to 95 % Otherwise, a warning message regarding motor protection will be issued when starting.
Notice
If CLASS settings other than 5(10a) or 10 are selected, it may be necessary to check and adjust the set values for the
rated operating current I
e
of the motor (Chapter 5.4.2 "Entering the Motor Data") in all 3 parameter sets, since otherwise
the error message "Impermissible Ie/ CLASS settings" may be issued.
For the maximum permissible set value for the rated operating current I
e
of the motor in regard to the CLASS settings
please refer to Chapter 10.3.2 "Technical Data Power Unit".
change
ESC
Tripping class
1
select
ESC
Motor
6
CLASS 10
OK
change
ESC
Current asymm.
2
40.0 %
OK
change
ESC
Prewarning limit
3
200 s
OK
change
ESC
Prew. limit motor
4
80.0 %
OK
change
ESC
Idle time
5
deactivated
OK
change
ESC
Pre-charge
6
60 s
OK
tripping reserve
limit value
heat build up
time
change
ESC
Protect. against
7
Yes
OK
voltage failure
Adjustable
from ... to
None; CLASS 5(10a);
CLASS 10; CLASS 15;
CLASS 20; CLASS 30
30 ... 60 %
0 ... 500 s
0 ... 100 %
deactivated; 1 ... 100 s
deactivated; 60 ... 1,800 s
Yes; No
Deactivated
Thermo click
PTC type A
change
ESC
Temperature
8
Deactivated
OK
sensor
select
ESC
Inputs
4
OK
select
ESC
Settings
3
OK
Display mea-
SIEMENS
Menu
3RW44
1
sured value
ESC
ESC OK
OK
select
1
Status display
select
2
ESC OK
OK
select
ESC
Parameter
1
OK
select
ESC
Parameter
2
OK
select
ESC
Parameter
3
OK
set 1
set 2
set 3
OK
select
ESC
Outputs
5
OK
OK
OK
OK
OK