User's Manual

Turbo PMAC2 Eth Ultralite Manual

HARDWARE SETUP

Note:

Please note that the DAC output is a filtered PWM signal and is

limited by the max phase settings which cannot be changed because

of Realtime Express network requirements.

Pulse and Direction Output

This output can be connected to any stepper motor amplifier or it can be used to generate pulses

for any other application. Since the phase and servo clock cycle times are preset at Realtime

Express network’s update rate, the maximum output frequency with default settings is 327kHz

which can be increased to 1.31 MHz by changing the PFM clock divider (I6803)

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9101112131415

DI R-

DI R+

Puls e -

Puls e +

GND

Pulse & Direction Wiring

To output Pulse and Direction on the handwheel port :

I6826=3 ;set the channel output to PFM mode

M1006->Y:$7841C,0,24,s

By changing the value of m1006, you can select the direction and the frequency of the pulses.

24 VDC Power Supply Input, J9

An external 24VDC power supply is required to power the Turbo PMAC2 Eth Ultralite. The

24V is wired into connector J9. The polarity of this connection is extremely important.

Carefully follow the instructions in the wiring diagram. This connection can be made using 16

AWG wire directly from a protected power supply. In situations where the power supply is

shared with other devices, it may be desirable to insert a filter in this connection.

The power supply providing this 24V must be capable of providing an instantaneous current of

at least 900 mA. In the case where multiple devices are driven from the same 24V supply, it is

recommended that each device be wired back to the power supply terminals independently

The connector for J9 is a Phoenix PCB Edge connector ZEC 1,5/ 3-ST-5,0 C2 R1,3 with Delta

Tau part number 014-188305-001 and Phoenix part number 18883051.