Siemens 6RA7086-6KS22 Operating Instructions Manual page 482

Parameter list
PNU Description
11.6 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.
11-18
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
SIEMENS AG
SIMOREG DC Master Operating Instructions
05.05
See
Change
(Access /
Status)
P052 = 3
P051 = 40
Offline
P052 = 3
P051 = 40
Offline
6RX1700-0AD76