P S - P R O E I I / P E I I - P O W E R C O N D I T I O N E R / S E Q U E N C E R
P S - P R O E I I / P E I I - P O W E R C O N D I T I O N E R / S E Q U E N C E R
MOMENTARY vs. MAINTAINED
CONTACT SWITCHING
An on-off switch of either kind may be used
to actuate the PS-PRO E II / PE II’s remote
operation. Maintained switches, such as most
toggle switches and push-on/push-off button
switches, (including the Furman RS-1 key
lock switch), stay open until switched, and then
remain closed until switched again. Momentary
switches, usually pushbutton types like the
Furman RS-2 (which also provides a locking key
switch), are normally open and stay closed only
as long as the button is pressed.
Maintained switches are generally the most
convenient when there is only one remote
location. When more than one location is required,
momentary switches offer the advantage of
a turn-on or turn-off sequence which may be
started from any location.
The PS-PRO E II / PE II main circuit board has
5 pairs of terminals (PCB REV D and later)
labeled as:
JMP1 (Default) (MAINT ON) , when the REM and
+12V terminals are tied together, the PS-PRO E
II / PE II will sequence OFF.
JMP2 (MOMENTARY), when the REM and +12V
terminals are momentary tied together, the PS-
PRO E II / PE II will sequence ON or OFF.
JMP3 (MAINT OFF), when the REM and +12V
terminals are tied together, the PS-PRO E II /
PE II will sequence ON.
JMP4 (REM TO GND = ON), when the REM and
GND terminals are tied together, the PS-PRO E
II / PE II will sequence ON (Note: JMP1 must
have a jumper installed).
JMP5 spare jumper holder.
PS-PRO E II / PE II units come factory-set for
maintained operation (jumper is installed on
JMP1). They may be easily converted to other
operating modes by moving jumper plug/plugs
on the PS-PRO E II / PE II’s circuit board. To
do this, first disconnect the unit from AC power.
Remove the 12 screws that secure the top cover.
Simply install the jumper plugs to the desired
mode of operation. Reattach the top cover.
MAINTAINED MODE
There are 3 maintained modes of operation:
REM to +12V = OFF (jumper plug installed on
JMP1, MAINT ON)
The connection of the REM terminal to the
+12V terminal initiates an OFF sequence.
Disconnecting initiates an ON sequence. If the
cable run is long, it is recommended that the
REM wire be tied to the PS-PRO E II / PE II’s
GND terminal during ON operation rather than
leaving it floating. This will require the use of a
third conductor and a double-throw switch.
REM to +12V = ON (jumper plug installed on
JMP3, MAINT OFF)
The connection of the REM terminal to the
+12V terminal initiates an ON sequence.
Disconnecting initiates an OFF sequence. If the
cable run is long, it is recommended that the
REM wire be tied to the PS-PRO E II / PE II’s
GND terminal during OFF operation rather than
leaving it floating.
7
(Continued from p.4)
JMP
REM TO +12V = OFF
MOMENTARY MODE
REM TO +12V = ON
REM TO GND = ON
1
2
3 4
JUMPER SETTING CHART
POWER SEQUENCING
FEATURES
The PS-PRO E II / PE II rear panel provides
one pair of unswitched and three IEC switched
outlet pairs. The switched outlet pairs are labeled
Delay 1, Delay 2, and Delay 3. (The other pair of
outlets on the rear panel and an additional single
outlet on the front panel are unswitched.)
Here’s how the PS-PRO E II / PE II works: When
an ON sequence is initiated, power is imme-
diately applied to the Delay 1 outlets. Power is
then applied to Delay 2 and Delay 3 outlets per
the 1-60 second total delay setting selected with
the front panel Delay Adjust control.
The Delay Adjust control, which can be set us-
ing a screwdriver, controls the total delay time
between Delay 2 and Delay 3. For example, if
the Delay Adjust is set for 30 seconds, the De-
lay 1 outlets will go on immediately, Delay 2 will
power 15 seconds later and Delay 3 will power
15 seconds after Delay 2, for a total delay time
of 30 seconds.
The order is reversed for the OFF sequence.
For example, when an OFF sequence is initiated
and the Delay Adjust control is set at 60 seconds,
Delay 3 outlets lose power immediately, Delay 2
outlets lose power 30 seconds later and Delay
1 outlets lose power 30 seconds after Delay 2.
The total delay time is 60 seconds.
In the event of a power outage, of course all
equipment plugged into a PS-PRO E II / PE II
will lose power simultaneously. However, when
power is restored, the delayed outlet groups will
again turn on in the usual delayed sequence (if
set to maintained on mode).
ON OR OFF
SEQUENCING
The method of initiating an ON or OFF sequence
depends on whether the unit is to be controlled
locally or remotely. If remotely, it further
depends on the type of switch or switches used
(momentary or maintained).
LOCAL CONTROL
For local control, an ON sequence is initiated
by turning the key switch to the ON position,
and an OFF sequence by turning the key
switch to OFF position. The START ON-OFF
SEQUENCE pushbutton is not normally used
in local operation.
NOTE: If the PS-PRO E II / PE II is to be used
under local control only, and a jumper is installed
on JMP1 with no switch connected to the PS-
PRO E II / PE II’s terminal strip, then a jumper
should be connected between the REM and
+12V terminals. Otherwise, turning the front
panel key switch to the REM position will turn
the PS-PRO E II / PE II ON.
REMOTE CONTROL
When the PS-PRO E II / PE II’s front panel key
lock switch is in the REM position, it can be
controlled by one or more switches in remote
locations. In the most basic configuration, only
two wires and an SPST switch are needed to
initiate an ON or OFF sequence. The switch may
be either a momentary or a maintained-contact
type, depending on a jumper setting inside the
PS-PRO E II / PE II. If an additional wire is used,
an LED may also be installed at the remote end
to indicate that the power is on.
(continued on page 7)
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