Siemens SINAMICS S150 NEMA Operating Instructions Manual page 537

Converter cabinet units
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Figure 9-7
Table 9- 4
Settings for motor changeover (example)
Parameter
Settings
p0130
2
p0180
2
p0186[0..1]
0, 1
p0820
Digital input, DDS selection
p0821 ... p0824
0
p0826[0..1]
1, 2
p0827[0..1]
0, 1
r0830.0 and r0830.1
Digital outputs, auxiliary contactors
p0831[0..1]
Digital inputs, auxiliary contacts
p0833.00 and .01
0, 0
Motor changeover sequence
1. Start condition:
For synchronous motors, the actual speed must be lower than the speed at the start of
field weakening. This prevents the regenerative voltage from exceeding the terminal
voltage.
2. Pulse suppression:
The pulses are suppressed following the selection of a new drive data set using p0820 to
p0824.
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
Example of motor changeover
Functions, monitoring and protective functions
Comment
Configure 2 MDS
Configure 2 DDS
The MDS are assigned to the DDS.
The digital input to change over the motor is selected via the
DDS. Binary coding is used (p0820 = bit 0, etc.).
Different numbers mean different thermal models.
Assign the bit from r0830 to the MDS. If p0827[0] = 0, for
example, bit r0830.0 is set via DDS0 when MDS0 is selected.
The digital outputs for the auxiliary contactors are assigned to
the bits.
The digital inputs for the feedback signal of the motor
contactors are assigned.
The drive controls the contactor circuit and pulse inhibition.
9.3 Drive functions
535

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