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Operation guide | iSave 40
44
180R9239 | AQ299555093252en-001601 | iSave 40 | 09.2022
10.6 iSave overload protection and VFD
settings
Protection by VFD
For full protection on both the iSave and the
electric motor, one VFD can be used for each
iSave. See electrical schematic diagram on next
page.
The Danfoss FC 300 Series can provide the speed
control and overall protection of both the
electric motor and the mechanical parts in the
iSave.
Alternative one VFD can control the speed of
several iSaves. But the overload protection of the
electric motors and torque limitations on the
iSaves must be provided by additional equip-
ment. This can be done by “current monitoring
relays”, see page 46.
Danfoss FC 300 parameter setup
For detailed information of the VFD see the
operation instruction supplied together with the
VFD.
At initial start up of the VFD run the “Initialisa-
tion” parameter settings and the following
parameters:
1)
Torque limit must be calculated according to
maximum torque of the iSave.
See section 3.3.
Par.
no.
Parameter
description
Set
value
341
Ramp up
3-15 seconds
342
Ramp down
3-15 seconds
413
Motor speed,
high limit
1,200 rpm
416
Torque limit motor 140%
1)
419
Max output
65 Hz