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Motor Protection
7.1
Overload Protection
Overload Protection
SIMOCODE pro protects 3-phase and AC motors in compliance with IEC 60947-4-1. The
tripping class can be set to 8 different settings ranging from class 5 to class 40. Therefore,
the switch-off time can be adjusted very precisely to the power-up time of the motor which
allows the motor to be better used to capacity. The "Heating up the motor model" value and
the interval up to the overload tripping are also calculated and can be put at the disposal of
the control system. After an overload tripping, the remaining cooling down time is displayed.
The motor current at the point of overload tripping is stored.
Depending on the control function, the set current is separately parameterizable for one or
two speeds (I
Set current I
1 (CiR)
s
The motor rated current is normally set with the Iset current Is1. This value is listed on the
type plate of the motor. It is the basis for calculating the overload tripping characteristic
curve.
Range: depends on the desired current measuring module or current/voltage measuring
module.
When a current measuring module or 1st generation current / voltage measuring modules
are used:
Set current I
When 2nd generation current / voltage measuring modules are used:
Set current I
SIMOCODE PRO V PN FDI
Programming and Operating Manual, 05/2020, A5E44499659002A/RS-AA/001
1 and I
2).
s
s
1 :
0.3 A to 3 A
s
2.4 A to 25 A
10 A to 100 A
20 A to 200 A
63 A to 630 A
1 :
0.3 A to 4 A
s
3 A to 40 A
10 A to 115 A
20 A to 200 A
63 A to 630 A
7
23
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