Description
08.96
1-2
Siemens AG 6SE7087-6BM70
SIMOVERT MASTER DRIVES Operating Instructions
SIMOVERT VC
The inverter open-loop control uses a microprocessor and field-oriented vector control with an extremely fast
closed-loop current control. The drive can be precisely adapted to the demanded load torque as a result of the
field-oriented control, which in turn means that the drive has an extremely high dynamic performance.The pulse
frequency is preset to 2.5 kHz when the unit is shipped.
SIMOVERT VC is suitable for:
♦
Induction motors in both single-motor or multi-motor drives.
For multi-motor drives, the motors within the group must be the same.
Some of the applications are, for example:
♦
Winder drives
♦
Rolling mill drives.
When the drive is shipped, closed-loop V/f control is preset. Closed-loop frequency control with field-oriented
vector control must be parameterized.
The converter can be set, as a result of the precise motor simulation up to a maximum frequency of 300 Hz, with
and without stall protection and with and without tachometer feedback.
1.3
Operator control- and open-loop control possibilities
The unit can be controlled via
♦
the parameterization unit (PMU)
♦
an optional operator control panel (OP1)
♦
terminal strip
♦
a serial interface.
When networked with automation systems, the unit open-loop control is realized via optional interfaces and
technology boards.
