Ametek Sorensen XFR 100-28, Manual

Page: 58 / 99

Using the Shutdown Function
TM-F2OP-C1XN-01 3-9
Using the Shutdown Function
Use the Shutdown function to disable or enable the supply’s output so that
you can make adjustments to either the load or the power supply without
shutting off the power supply. Activate this function from the front panel
at any time by using the STANDBY switch. You can also activate it via
remote control through the rear panel J2 Programming and Monitoring
connector, using a 2.5 V to 15 V signal or a transistor-transistor logic
(TTL) compatible signal. The input lines for the Shutdown circuit are
optically isolated.
STANDBY Switch
The STANDBY switch is a press ON/press OFF switch located on the
power supply’s front panel. See the front panel diagram in “Front Panel
Controls” on page 1–3. Push the switch to its IN position to activate the
Shutdown circuit. The output voltage and current fall to zero and the red
S/D (Shutdown) LED turns on. Push the switch once more to reset it to its
OUT position and resume normal power supply operation.
Controlling the Shutdown Function via the J2 Connector
The shutdown circuit accepts a 2.5 V to 15 V signal to disable or enable
the power supply output. Make connections for signals at connector J2,
located on the unit’s rear panel. Set rear panel switch SW1-7 to select
signal logic. See “Front Panel Controls” on page 1–3 for more
information about making J2 connector and SW1 switch changes.
To activate the shutdown function:
1. Turn OFF the power supply.
2. Connect the signal source to J2 connector terminal 15 (Shutdown
Input/positive) and terminal 14 (Shutdown Return).
3. Set switch SW1-7 to select the desired circuit logic as set out in Table
3-2.
4. Turn on the power supply. The power supply will operate as described
in the
Supply Output
column in Table 3-2, according to the logic you
select and the level of the input signal. The S/D (Shutdown) LED on
the front panel turns on when the Shutdown circuit is activated.