Instruction
iSave 21
2
180R9222 / 521B1175 / DKCFN.PI.003.L1.02 / 04.2011
iSave 21
Protection by VFD.
The Danfoss VLT 302 series can provide the speed control and overall protection of both the electric
motor and the mechanical parts in the iSave. For full protection on both the iSave and the electrical
motor, one VLT must bee used for each iSave. See Electrical schematic diagram on page 3.
Alternative one VLT can control the speed of several iSaves. But the overload protection of the electri-
cal motors and torque limitations on the iSaves must be provided by additional equipment. This can
be done by a mechanical coupling between the electrical motor and the iSave (See page 7) or by a
“current monitoring relays”, see page 4.
Danfoss VLT 302 parameter setup
For detailed information of the VLT see the operation instruction supplied together with the VLT.
At initial start up of the VLT run the “initialisering”
Parterre settings:
Par. No. #
Parameter description
Set value
341
Ramp up
10 second
416
Current limit control, proportional gain
1)
1425
Current limit control, time
0 second
1) Current limit must be calculated according to maximum torque of the iSave.
See datasheet 521b1116.
Summary of Contents for iSave 21
Page 5: ...User manual iSave 21 5 180R9221 521B1174 DKCFN PS 003 A1 02 1 CE Declaration of conformity...
Page 32: ...User manual iSave 21 32 180R9221 521B1174 DKCFN PS 003 A1 02...
Page 38: ...User manual iSave 21 38 180R9221 521B1174 DKCFN PS 003 A1 02...
Page 43: ...User manual iSave 21 43 180R9221 521B1174 DKCFN PS 003 A1 02 10 3 Data sheet...
Page 44: ...User manual iSave 21 44 180R9221 521B1174 DKCFN PS 003 A1 02...
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Page 59: ...User manual iSave 21 59 180R9221 521B1174 DKCFN PS 003 A1 02 10 4 iSave part list...
Page 60: ...User manual iSave 21 60 180R9221 521B1174 DKCFN PS 003 A1 02...
Page 61: ...isave danfoss com iSave 21 Parts list 180R9209 DKCFN PC 003 A2 02 Parts list...
Page 66: ...Parts list iSave 21 Parts list 6 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view Vane pump...
Page 68: ...Parts list iSave 21 Parts list 8 180R9209 DKCFN PC 003 A2 02 03 2011 Exploded view iSave...
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Page 71: ...User manual iSave 21 71 180R9221 521B1174 DKCFN PS 003 A1 02 10 5 iSave overload protection...
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