Siemens SINAMICS S150 NEMA Operating Instructions Manual page 519

Table 9- 4 Settings for motor changeover (example)
Parameter
p0130
p0180
p0186[0..1]
p0820
p0821 ... p0824
p0826[0..1]
p0827[0..1]
r0830.0 and r0830.1
p0831[0..1]
p0833.00 and .01
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.
3. Open motor contactor:
Motor contactor 1 is opened (r0830 = 0) and the status bit "Motor changeover active"
(r0835.0) is set.
4. Change over drive data set:
The requested data set is activated (r0051 = data set currently effective, r0837 =
requested data set).
5. Energize motor contactor:
After the feedback signal (motor contactor opened) from motor contactor 1, the
appropriate bit of r0830 is set and motor contactor 2 is energized.
6. Enable pulses:
After the feedback signal (motor contactor closed) from motor contactor 2, the bit "motor
data set changeover active" (r0835.0) is reset and the pulses are enabled. The motor has
now been changed over.
Converter cabinet units
Operating Instructions, 11/2017, A5E36652151A
Settings
2
2
0, 1
Digital input, DDS selection
0
1, 2
0, 1
Digital outputs, auxiliary
contactors
Digital inputs, auxiliary contacts
0, 0
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
517