Overload Protection; Description Of Overload Protection Functions; Set Current Is1 - Siemens SIMOCODE pro Operating Manual

Parameters
4.1 Motor protection
4.1.2

Overload protection

4.1.2.1

Description of overload protection functions

SIMOCODE pro protects three-phase or AC motors in accordance with IEC 60947-4-1
requirements. The trip class can be set to eight different settings, ranging from Class 5 to
Class 40. Thus, the tripping time can be adapted precisely to the power-up behavior of the
motor, improving utilization of the motor capacity. Additionally, the "Thermal motor model"
and time to overload trip are calculated and made available to the control system. After an
overload trip, the remaining cooling down period is displayed (see Class). The motor current
is saved in the case of an overload trip.
Depending on the control function, the set current I
two speeds (I
The rated motor current is usually set with set current I
type plate of the motor. It is the basis for calculating the overload trip characteristic curve.
The Set current I
protection for the higher speed is also ensured. Generally, I
4.1.2.2

Set current Is1

Setting ranges for current setting l
Range: Depends on the selected current measuring module or current / voltage measuring
module.
Current setting I
voltage measuring:
● 0.3 to 3 A (default: 0.3)
● 2.4 to 25 A
● 10 to 100 A
● 20 to 200 A
● 63 to 630 A
Current setting I
● 0.3 to 4 A (default: 0.3)
● 3 to 40 A
● 10 to 115 A
● 20 to 200 A
● 63 to 630 A
34
1 and I 2).
s s
2 is only necessary for motors with 2 speeds so that adequate overload
s
1
s
1 when using a current measuring module or a 1st generation current /
s
1 when using a 2nd generation current / voltage measuring module:
s
is separately parameterizable for one or
s
1. This value can be found on the
s
2 should be set higher than I
s
SIMOCODE pro - Parameterize
Operating Manual, 04/2017, A5E40507630002A/RS-AA/001
1.
s