Control Techniques 0471-0144-02, Руководство по установке

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SPM Power Selector Module Installation Guide
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* This configuration requires a total of five SPM Parallel cables. Consequently an
additional SPM Paralleling cable will be required for this configuration.
Figure 4-14 Control connections for two drives and two SPM Power Selector
Modules
The following table shows the modes of operation that are possible using mode
selection on the SPM Power Selector Module, provided the Unidrive SPM modules and
the power selector modules are configured in accordance with Figure 4-13 on page 24.
Table 4-6 Modes of operation
The parameters listed below may need to be adjusted manually, when switching from
single SPM power module operation to parallel SPM power module operation. The
following parameters will ensure the correct current ratings/limits are applied to prevent
an overload condition when operating at lower power rating with a single SPM power
module.
Pr
5.07 (Motor rated current)
Pr 5.10 (Power factor)
Pr 4.05 (Motoring current limit)
Pr 4.06 (Regen current limit)
Pr 4.07 (Symmetrical current limit)
Pr 4.24 (User Maximum current scaling)
Master Mode Select
switch on SPM Power
Selector Module 1
Master Mode Select
switch on SPM Power
Selector Module 2
Mode of Operation
Open Open
Unidrive SPM power modules 1 and 2 are
selected
Open Closed Unidrive SPM power module 1 is selected
Closed Open No modules selected
Closed Closed Unidrive SPM power module 2 is selected
Contactor power supply
K1
K2
M1
To Power Selector 1
contactor terminal 6
Unidrive
SPMD / SPMA
1
U
V
W
U
V
W
L1
L2
L3
To Power Selector 2
contactor terminal 6
Unidrive
SPMD / SPMA
2
Unidrive SPM power and control modules along with the SPM Power Selector Module
must be powered down when changing between operating modes.
NOTE