Using The Shutdown Function; Controlling Shutdown Function Via J210 Connector; Master-Slave Tracking - Xantrex XPD 120-4.5 Operating Manual

Using the Shutdown Function

Use the shutdown function to disable or enable the supply's output via a logic level
signal so that you can make adjustments to either the load or the power supply
without shutting off the power supply. Activate this function via remote control
through the rear panel J210 Programming and Monitoring connector, using a
transistor-transistor logic (TTL) or CMOS compatible signal. The input lines of the
shutdown circuit are optically isolated and will withstand a highpot test potential of
500 Vac maximum to chassis.
Controlling The shutdown circuit accepts a TTL or CMOS-compatible signal to disable or enable
the power supply output. Make connections for signals at the rear panel J210
Shutdown
connector. See
Function via
the J210 connector.
J210
Connector
To activate the shutdown function:
•

Master-Slave Tracking

Note
outputs, not split supply operation.
For tracking positive and negative outputs, use the following setup:
1. Connect master return (J210 connector pin 13) to slave RTN (J210 connector pin
2. Connect master Vmon (J210 connector pin 15) to slave voltage program input
Note
As the slave is referenced to the master's output, the noise and ripple on the slave may
increase. In addition, if the master's output decreases due to the current limit acting,
the output voltage of the slave will follow. However, overcurrent of the slave supply and
consequent output voltage decrease will not reflect on the master.
Release A
"Rear Panel J210 Connector" on page
Connect the control signal source between J210 connector pin 2
(shutdown/positive) and pin 1 (shutdown return/negative).
It is important to note that a Master-Slave configuration only applies to 2 positive
13).
(J210 connector pin 14).
Master/slave power supplies must have the same output ratings.
Section 3. Local Operation
Using the Shutdown Function
15, for more information about
39