ABB RED615 Technical Manual page 530

Section 4
Protection functions
524
input is deactivated. The operation of the MOT_START output signal in this
operation mode is as illustrated in
This CB mode can be used in soft-started or slip ring motors for protection against
a large starting current, that is, a problem in starting and so on.
GUID-DDAD7B3F-28BE-4573-BE79-FBB488A22ECA V1 EN
GUID-1470A4DB-310F-46BC-B775-843EAB8BA836 V1 EN
Figure 275: Functionality of startup supervision in the "IIt, CB" mode and the "IIt
and stall, CB" mode
The Str over delay time setting has different purposes in different modes of operation.
• In the "IIt" or "IIt & stall" modes, the aim of this setting is to check for the
completion of the motor startup period. The purpose of this time delay setting
is to allow for short interruptions in the current without changing the state of
Figure 275.
1YHT530004D05 D
615 series
Technical Manual