Operation guide | iSave 40
47
180R9239 | AQ299555093252en-001601 | iSave 40 | 09.2022
10.6.3 Protection by current monitoring
relays
The current monitoring relay constantly
measures the current in an electrical wire. The
current is indirectly reflecting the torque on the
electric motor. If the measured value exceeds the
adjusted threshold value the relay sends a signal
to a main switch that cuts of the power to the
electric motor.
When using a current monitoring relays together
with a VFD attention must be on choosing a VFD
compatible relay.
10.6.4 Danfoss FC 302 with two iSaves
Electrical schematic diagrams
according to EN60204-1.
Danfoss
FC 302