VEM VEMoDRIVE VSI 2.0 HD, Instruction Manual

Page: 115 / 244

CG Drives & Automation,01-5326-01r3b FFunctional Description 113
Communication information
Spinstart [33A]
The spinstart will smoothly start a motor which is already
rotating by catching the motor at the actual speed and
control it to the desired speed. If in an application, such as
an exhausting fan, the motor shaft is already rotating due to
external conditions, a smooth start of the application is
required to prevent excessive wear. With the spinstart=On,
the actual control of the motor is delayed due to detecting
the actual speed and rotation direction, which depend on
motor size, running conditions of the motor before the
Spinstart, inertia of the application, etc. Depending on the
motor electrical time constant and the size of the motor, it
can take maximum a couple of minutes before the motor is
caught.
Communication information
Stop Mode [33B]
When the AC drive is stopped, different methods to come to
a standstill can be selected in order to optimize the stop and
prevent unnecessary wear. Stop Mode sets the way of
stopping the motor when a Stop command is given.
Communication information
Modbus Instance no/DeviceNet no: 43109
Profibus slot/index 169/13
EtherCAT index (hex) 4c25
Profinet IO index 19493
Fieldbus format UInt
Modbus format UInt
Default: Off
Off 0
No spinstart. If the motor is already running
the AC drive can trip or will start with high
current.
On 1
Spinstart will allow the start of a running
motor without tripping or high inrush currents.
If encoder feedback is used, both encoder
speed and current signals are used to
perform spinstart function.
Encoder 2
Only encoder speed used for detecting
rotating machine, i.e. no rotating machine
detection via initial motor current.
Note: Only active if encoder is present. If no
Encoder, functionality is equal to selection
Off.
Modbus Instance no/DeviceNet no: 43110
Profibus slot/index 169/14
EtherCAT index (hex) 4c26
Profinet IO index 19494
Fieldbus format UInt
Modbus format UInt
33A Spinstart
Stp Off
Default: Decel
Decel 0
The motor decelerates to 0 rpm according
to the set deceleration time.
Coast 1 The motor freewheels naturally to 0 rpm.
Modbus Instance no/DeviceNet no: 43111
Profibus slot/index 169/15
EtherCAT index (hex) 4c27
Profinet IO index 19495
Fieldbus format UInt
Modbus format UInt
33B Stop Mode
Stp Decel
9(0R'ULYH 96, 9(0 U