American Magnetics 12200PS DC Power Supply (CE-Marked) - Manual (Page 43)

OPERATING MANUAL LOCAL OPERATION
Release 1.0 (98/07) 3-9
3.5.3 Configuring Multiple Supplies for Split Supply Operation (continued)
Positive-negative Supply
CAUTION
To prevent possible damage to the supply, do not connect the remote
program return line of the negative supply to the common connection.
To obtain a positive-negative supply, connect the negative output terminal of one supply to the positive output
terminal of the second supply. The positive output terminal of the first supply then provides a positive voltage
relative to the common connection while the negative output terminal of the second supply provides a negative
voltage. You can set the current limits independently. The maximum current available in split supply operation
is equal to the rated output of the supplies. For example, 70A for two 40V-70A models. See
Figure 3.5-4.
Figure 3.5-4 Split Supply Operation of Multiple Supplies (Positive-negative Supply)
(Local sense lines shown are default J10 connections.)
3.6 Over Temperature Protection (OTP)
The OTP function allows you to select how the power supply recovers from an over temperature shutdown using
the rear panel switch SW1-8. Table 3.6-1 shows the switch settings and selections. See Section 4.2 for more
information about the switch. The OTP shutdown circuit activates before the internal components can exceed
their safe internal operating temperatures. When an OTP shutdown occurs, the front panel OTP LED turns on.
Table 3.6-1 Switch Settings for Over Temperature Recovery Options
Switch SW1-8 OTP Shutdown Selection Description
OFF (OPEN) Auto Reset (Default) The supply recovers to normal operation when the over
temperature condition no longer exists.
ON (CLOSED) Latch OFF After an over temperature shutdown, the supply stays
OFF until you turn the AC power switch OFF, then you
turn the power supply ON to continue use.