Delta Tau Geo Direct PWM Amplifier Instrukcja Instalacji Pobierz pdf (Strona 37)

Geo Direct PWM Amplifier

Power PMAC3 Drive Setup 37

POWER PMAC3 DRIVE SETUP

Caution

The ADC Strobe Word, Gate3[i].AdcAmpStrobe, must be set to

$FFFFFC for proper operation in default mode. Failure to do so could

result in damage to the amplifier.

Key Gate Parameters

The following Gate-specific parameters are essential for the proper software setup of the Geo Direct

PWM Drive:

Structure Element

Description

Typical/Default

Notes

Sys.WpKey

PMAC3 Write Protection

$AAAAAAAA to

allow writing

Gate3[i].PhaseFreq

Phase Frequency

9000

9.00 KHz Phase

Gate3[i].ServoClockDiv

Servo clock divider

2.25 KHz Servo

Gate3[i].HardwareClockCtrl

Hardware Clocks

$55555403

2.50 MHz ADC Clock

Sys.ServoPeriod

=1000*(Gate3[i].ServoClockDiv+1)/Gate3[i].PhaseFreq

Sys.PhaseOverServoPeriod

= 1 /(Gate3[i].ServoClockDiv + 1)

Gate3[i].AdcAmpStrobe

ADC Strobe Word

$FFFFFC

Default Mode

Gate3[i].Chan[j].OutputMode

Output mode

PWM output

Note

Sys.ServoPeriod and Sys.PhaseOverServoPeriod must be re-computed

if the main clocks (Phase, and Servo) are changed.

Note

The above settings require a Save and a Reset ($$$) on the PMAC

side in order to take effect.

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