Parker AC30 series User Manual

C-122 Parameter Reference
AC30 series Variable Speed Drive
Pattern Generator
Parameters::Motor Control::Pattern Generator
The pattern generator function allows you to configure the Drive’ PWM (Pulse Width Modulator) operation.
Parameter Name
No.
Path
Default
Range
Units
Writable
Stack Frequency
0412
Parameters::Motor Control::Pattern
Generator
4.00 2.00 to 16.00 kHz
ALWAYS
This parameter selects the PWM switching frequency of the output power stack.
The higher the switching frequency, the lower the level of motor audible noise. However, this is only achieved at the expense of
increased drive losses and reduced stack current rating.
Max value is Control Mode dependant :
12 kHz for PMAC SVC
14kHz for IM SVC
16 kHz for V/Hz
Max value is also Stack size dependant :
16 kHz for frames D & E
12 kHz for frames F & G
8kHz for others.
Max value is also configuration dependant :
8kHz If a Resolver option board is fitted,
9kHz if an AC30A encoder – sincos type is fitted
If the Peer To Peer feature is enabled, then the switching frequency is limited to 8kHz
Max value may also be adapted by the user related to the drive load in term of processing, due to application size and hardware
settings.
For example, an AC30D or an AC30A with an added option feedback may not be able to be used with the higher switching frequency
described above. The user may have to reduce it to get the system working.
Random Pattern IM
0413
Parameters::Motor Control::Pattern
Generator
TRUE
ALWAYS

Parker AC30 series Specifications

General

Control Modes	Closed-loop vector
Feedback	Encoder
Operating Temperature	0 to 40°C (32 to 104°F) standard, -20 to 50°C (-4 to 122°F) with derating
Protection	Overcurrent, Overvoltage, Undervoltage
Communication	RS485