Function Diagram - Siemens SINAMICS S150 Operating Instructions Manual

Table 9-3 Settings for motor changeover (example)
Parameters
p0130
p0180
p0186[0..1]
p0820
p0821 to p0824
p0826[0..1]
p0827[0..1]
p0830.0 and p0830.1
p0831[0..1]
p0833.00 and .01
Motor changeover sequence
1. Start condition:
2. Pulse suppression:
3. Open motor contactor:
4. Changeover drive data set:
5. Energize motor contactor:
6. Enable pulses:
9.3.6.3

Function diagram

FP 8565
FP 8575
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
Settings
2
2
0, 1
Digital input, DDS selection
0
1, 2
0, 1
Digital outputs, auxiliary
contactors
Digital inputs, auxiliary contacts
0, 0
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.
The pulses are suppressed following the selection of a new drive data set using p0820 to
p0824.
Motor contactor 1 is opened r0830 = 0 and the status bit "Motor changeover active"
(r0835.0) is set.
The requested data set is activated (r0051 = data set currently effective, r0837 =
requested data set).
After the feedback signal (motor contactor opened) from motor contactor 1, the
appropriate bit of r0830 is set and motor contactor 2 is energized.
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.
Drive Data Set (DDS)
Motor Data Sets (MDS)
Functions, monitoring, and protective functions
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.
The bits of p0830 are assigned to the MDS. If p0827[0] = 0,
for example, bit p0830.0 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 contactors and pulse suppression.
9.3 Drive functions
Remark
325