Omron SX-F, Инструкция по эксплуатации

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137
Process and Application Parameters [300]
Section 11-3
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 appli-
cation, 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 VSD 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
Default: Off
Off 0
No spinstart. If the motor is already running the VSD can
trip or will start with high current.
On 1
Spinstart will allow the start of a running motor without trip-
ping or high inrush currents. If encoder feedback is used,
both encoder speed and current signals are used to per-
form spinstart function.
Use 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, func-
tionality is equal to selection Off.
Modbus Instance no/
DeviceNet no:
43110
Profibus slot/index 169/14
EtherCAT index (hex) 4c26
Fieldbus format UInt
Modbus format UInt
Default: Decel
Decel 0
The motor decelerates to 0 rpm according to the set decel-
eration 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
Fieldbus format UInt
Modbus format UInt
33A Spinstart
Stp
Off
A
33B Stop Mode
Stp
Decel
A