Siemens SIMODRIVE 611 universal Function Manual page 593

01.99 04.99
! not 611ue !
Table 6-65 Parameters for motor changeover, continued
No. Description
1249 External contactor control
motor changeover (ARM)
... specifies whether the contactors for motor changeover are controlled from the drive or from
an external control.
1 Motor changeover via external control
The contactor control for the motor changeover is realized using an external control
via the "motor changeover" input signal (STW2.11).
The output terminals with function numbers 11, 12, 13 and 14 are not energized.
0 Motor changeover via drive
The contactors to change over the motor are controlled from the drive via the output
terminals with function numbers 11, 12, 13 and 14.
Note:
The contactors used to change–over the motor must be switched in a no–current condition.
If an external control is used to changeover the motor, and it is "incorrectly" changed over (e.g.
the pulses are present), it is possible that the power/supply infeed module will be destroyed.
Recommendation:
Motor changeover should be realized using the drive output terminals (P1249 = 0).
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SIMODRIVE 611 universal Description of Functions (FBU) – 04.05 Edition
6.11 Motor changeover for induction motors (from SW 2.4)
Parameters
Min. Standard
0 0
6 Description of the Functions
Max. Units Effective
1 – Immedi-
ately
6-593
6