Co/Bo: Bypass Control/Status Word / Bypass Stw / Zsw; Bypass Dead Time / Bypass T_Dead - Siemens SINAMICS G120XA Operating Instructions Manual

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Parameters
7.3 Parameters
Value:
0:
3:
Dependency:
The "Bypass" function is only available for induction motors.
Note
When the converter is switched on, the state of the bridging contactor is evaluated.
If the automatic restart is active (p1210 = 4) and both an ON command (r0054.0 = 1) and the bypass signal (p1266 =
1, configuration p1267.0 = 1) are still present during power up, the converter goes into "ready for operation and bypass"
state (r0899.0 = 1 and r0046.25 = 1) after power up, and the motor continues to run directly on the line.
The "bypass" function can only be switched off again (p1260 = 0) if the bypass is not active or the bypass function has
a fault.
The "flying restart" function must be activated (p1200).
r1261.0...11

CO/BO: Bypass control/status word / Bypass STW / ZSW

Access level: 2
Can be changed: -
Unit group: -
Min:
-
Description:
Control and feedback signals of the bypass switch.
Bit field:
Bit
00
01
05
06
07
10
11
Dependency:
The "Bypass" function is only available for induction motors.
Note
Control bits 0 and 1 should be interconnected to the signal outputs via which the switches in the motor feeder cables
should be controlled. These should be selected/dimensioned for switching under load.
p1262[0...n]

Bypass dead time / Bypass t_dead

Access level: 2
Can be changed: T, U
Unit group: -
Min:
0.000 [s]
Description:
Sets the dead time for non-synchronized bypass.
Dependency:
The "Bypass" function is only available for induction motors.
Note
This parameter is used to define the changeover time of the contactors. It should not be shorter than the de-magnetizing
time of the motor (p0347).
The total changeover time for the bypass is based on the total of p1262 plus the OFF time for the relevant switch
(p1274[x]).
502
Bypass deactivated
Bypass without synchronization
Signal name
Command switch motor - power unit
Command switch motor - line supply
Feedback signal switch motor - power unit
Feedback signal switch motor - line supply
Bypass command (from p1266)
Bypass in process sequence
Bypass enabled
Calculated: -
Scaling: -
Unit selection: -
Max:
-
1 signal
Close
Close
Closed
Closed
Yes
Yes
Yes
Calculated: CALC_MOD_REG Data type: FloatingPoint32
Scaling: -
Unit selection: -
Max:
20.000 [s]
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
Data type: Unsigned32
Dynamic index: -
Function diagram: -
Factory setting:
-
0 signal
FP
Open
-
Open
-
Opened
-
Opened
-
No
-
No
-
No
-
Dynamic index: DDS, p0180
Function diagram: -
Factory setting:
1.000 [s]
SINAMICS G120XA converter

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