Xantrex Technology XDC manual To set the power limit, Power Limit, High #####W, Low #####W

Operation

Power Supply Operation

To set the power limit:

Step #	Do This	You Will See
1	MENU	ERROR MSGS
2	until you see the “SETPT	SETPT LIMIT
	LIMIT” option
3	ENTER	Voltage Limit
4	2 times	Power Limit
5	ENTER	High #####W
6	Use the Voltage and Current knobs,	High #####W
	arrow keys, or numeric keypad to
	enter a value. The value must be
	within 0W to 103% of the unit’s rated
	power.
7	ENTER	Low #####W
		The Maximum setting is saved and
		the Minimum setting appears.
8	Use the Voltage knob, arrow keys, or	Low #####W
	numeric keypad to enter a value. The
	value must be within 0W to 103% of
	the unit’s rated power.
9	ENTER	The setting is saved and the display
		returns to its default operating mode.

Slew Rate The slew rate is calculated as a function of change in the output voltage and a given time interval. The maximum slew rate is 1% rated voltage/150us. The slew rate is saved upon power off and restored at power on. Output ON/OFF and shutdown are not affected by the programmable slew rate. These functions have a slew rate of 1%/20ms.

The range of output voltage is 5% - 0.1% of rated voltage. The range of time interval is 1.5 s - 150 us.

The negative slew rate is limited by the discharge rate of the output capacitors.

During current share, slaves operate with their default slew rate. The master operates at its programmed slew rate. Hence a programmable slew rate for the system is achieved. However, this slew rate is limited by the speed of the control loop. The slaves will return to their programmed slew rate when they exit current share slave operation.

102 Operating Manual for XDC Series Power Supply