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PNU
Description
10.5
Setting values for converter control
P080
Control word for brake control
*
1
The brake is a holding brake
When the "Operating enable" command is cancelled or when
(G140)
the "Voltage disconnection" or "E-Stop" command is input, the
"Close brake" command is not input until n< n min (P370, P371)
is reached.
2
The brake is an operating brake
When the "Operating enable" command is cancelled or when
the "Voltage disconnection" or "E-Stop" command is input, the
"Close brake" command is input immediately, i.e. while the
motor is still rotating.
P081
EMF-dependent field weakening
*
0
No field-weakening operation as a function of speed or EMF
(100% of rated motor field current is applied constantly as the
(G165)
internal field current setpoint).
1
Field-weakening operation by internal closed-loop EMF control
to ensure that in field-weakening operation, i.e. at speeds above
the motor rated speed (="field-weakening activation limit
speed"), the motor EMF is maintained constantly at the setpoint
EMF set (K0289) = P101 – P100 * P110 (field current setpoint is
the product of the EMF controller output and the precontrol
component determined by the actual speed according to the
field characteristic).
NOTICE
When P081=1, a valid field characteristic must be available (P117=1),
otherwise the optimization run for field weakening (P051=27) must be
executed.
SIEMENS Energy & Automation
SIMOREG DC Master Base Drive Panel Operating Instructions
Value range
No. indices
[Unit]
Factory
Steps
setting
Type
1 to 2
Ind: None
FS=1
Type: O2
0 to 1
Ind: None
1
FS=0
Type: L2
See
Change
(Access /
Status)
P052 = 3
P051 = 40
Offline
P052 = 3
P051 = 40
Offline
10-17
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