18
TMN/TMP SERIES
OPERATING MANUAL
This is the reference common for the above logic signals.
Remote Adjust - 1
Remote Adjust - 2
Remote Adjust - 3
AC Good - 1
AC Good - 2
AC Good - 3
24
12
25
14
16
18
DC Good - 1
DC Good - 2
DC Good - 3
15
17
19
Signal Common
22
These are analog voltage inputs to the designated modules by
which the output voltage is adjusted. A zero to + 5V input
represents approximately 45 to 58V output for a 48V module or
22.5 to 29V for a 24V module. This input should be driven from
a source impedance less than 100 ohms and is referenced to
-Sense, Pin 23.
A TTL LO (sinks 2mA) indicates the AC input is present and the
PFC converter stage has output. A TTL HI, or open, indicates
AC input or PFC converter failure. This signal is referenced to
Signal Common, Pin 22.
A TTL LO (sinks 2mA) indicates that the unit is operating prop-
erly with output voltage in its controllable range. A TTL HI, or
open, indicates the output is outside the 45-58V range for a 48V
module or outside the 22.5-29V range for a 24V module, the unit
has failed or is in current limit. This signal is referenced to Signal
Common, Pin 22.
SIGNAL
PIN
DESCRIPTION
18.0
INSTALLATION
18.1
Mounting. See Figure 4. The TMN/TMP Series chassis is mounted in a
rack by means of mounting brackets on each side of the chassis. When
mounting, the chassis should first be securely mounted to the rack, then
the modules should be inserted into the chassis. The modules are se-
cured by tightening the two captive screws on each module.
18.2
AC Input Connections. The AC input connections to the TMN/TMP
racks are shown in Figure 5(b). As shown, there are separate connec-
tions for each module on the eight-terminal strip. All connections must be
AC three-wire with the safety ground wires going to the ground connec-
tion terminal at the bottom of the chassis. The connections are labeled by
module number.
18.3
DC Output Connections. The DC output connections are shown in
Figure 5(a) and (c). The positive and negative output connections are
made to the copper bus bars as shown. The upper left bar is positive, and
the lower right one is negative. Each bar has four ¼ - inch holes. Con-
