Operating Instructions

SED2 VFD Startup, Operation, and Maintenance Manual
78 Siemens Building Technologies, Inc.
Motor Data Identification
Parameter Description Action Setting/ Default
Motor Data Identification
Perform stator resistance
measuring.
0 = Disabled.
1 = Identification of Rs with
parameter change.
2 = Identification of Rs
without parameter
change.
3 = Identification of the
saturation
characteristic with
parameter change.
20 = Set voltage vector.
1. Press
to enter the
SED2 parameter mode
and to display r0000.
2. Press
to advance
to parameter P1910.
3. Press
to access the
parameter values level.
4. Press
to advance
to setting P1910=1.
Press
to confirm
and save the setting.
When P1910=1, Alarm
A0541 (motor data
identification active) is
output and internally
P0340 is set to 3.
Initiate the measuring
operation with a
continuous (steady-
state) ON command.
The motor aligns itself
and current flows
through it. Diagnostics
are possible using r0069
(CO: phase current).
On completion of the
motor data identification
routine, P1910 resets
(P1910=0, motor data
identification routine
inhibited) and Alarm
A0541 is cleared
(deleted).
5. To set the SED2 into a
defined state, issue an
OFF1 command.
Minimum: 0
Maximum: 20
P1910
NOTES:
1. Motor must be cool to perform motor data identification.
2. This measurement may take several minutes depending on motor size.