Does UMI-7774 need power source?

This may seem like an obvious question, but I need to ask it anyway:
I am using the PCI-7334 and UMI-7774 to control my E-DC drive and step motor. Does the UMI needs any power? For now, the UMI is plugged to the PCI-7334 and the step motor and power source are plugged to the E-DC drive which is plugged to the UMI.
Please help me!!
Thanks

A regulated power supply will hold its rated voltage. An unregulated one will not. Stepper drives typically don't get along with regulated power supplies because at start up there is a larger current draw. The power supply may think this is a short-circuit and either foldback or trip. Regulated supplies are also more expensive.

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UMI-7774 5v power

What is the current rating of the UMI-7774 internal 5Vdc power supply? This is the power on pin 8 feedback connector. User manual doesn't specify rating. This is not the ISO power. This relates to page 3-18 of manual.
Thanks
Solved!
Go to Solution.

Hi,
From the following PDF: http://www.ni.com/pdf/manuals/373359c.pdf: "Provides 1 A maximum output current, shared between Control connector pin 3, Feedback connector pins 4 and 8, and Trigger/Breakpoint connector pin 3."
It is on page 30, table 8.
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Does UMI-7774 need power source?

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