Furman PS-PRO E II User manual

PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER
Furman Sound, Inc.
1997 South McDowell Blvd.
Petaluma, California 94954-6919 USA
Phone: [phone] Fax: [phone]
Web: www.furmansound.com
E-mail: [email protected]
Furman Sound, Inc.
1997 South McDowell Blvd.
Petaluma, California 94954-6919 USA
Phone: [phone] Fax: [phone]
Web: www.furmansound.com
E-mail: [email protected]
031605-D
insured. We suggest that you save the original
packaging and use it to ship the product for
servicing. Also, please enclose a note with your
name, address, phone number and a description
of the problem.
NOTE: All equipment being returned for repair
must have a Return Authorization (RA) Number.
To get an RA Number, please call the Furman
Service Department, [phone], Ext. 120 or
121, between 8 am and 5 pm U.S. Pacific Time.
Please display your RA Number prominently on
the front of all packages.
PS-PRO E II / PE II SPECIFICATIONS
Current Rating: 16 Amps
Input Voltage: 180 to 280 VAC without damage
Delay Intervals: Total elapsed ON or OFF delay time adjustable
from 1-60 seconds, with a single trimpot
ON Sequence: -Delay 1 outlets go on immediately with switch.
-Delays between outlets 1 and 2, and 2 and 3,
adjustable from 1-60 seconds each
OFF Sequence: -Delay 3 outlets go off immediately with switch.
-Delays between outlets 3 and 2, and 2 and 1,
same as ON delays
Remote Switch: Screw terminals, 2 for switch, 2 additional for
optional LED (22 ga. minimum)
Spike Protection Modes: Line to neutral, zero ground leakage
Spike Clamping Voltage: 376 Vpk (266 VAC RMS)
Response Time: 1 nanosecond
Maximum Surge Current: 6,500 amps
Dimensions: 1.75” H x 19” W x 10.5” D.
Weight: 12 lbs.
Construction: Steel chassis, .125” brushed and black
anodized aluminum front panel; glass epoxy
printed circuit boards
Power Consumption: 11 watts
Safety Agency Listings: CE
Over Voltage Shutdown: 280V HI, 150V LO
Optional: 220/240V Versions (units with “E” suffix only) are
intended for use in countries with nominal 220 to
240 volt AC mains. Their rear panel outlets use
internationally accepted IEC-320 connectors.

PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER
FEATURES
 Power-up in three delayed outlet
groups (power-down reverses se-
quence)
 SMP+ surge suppression — the most
comprehensive protection available
anywhere!
 LiFT (Linear Filtering Technology) with
zero ground contamination
 Extreme voltage shutdown
 BNC connector on the rear panel al-
lows for attachment of a gooseneck
lamp to illuminate the rear of your rack
 Power Status LED’s indicate which
outlet groups have power
 Remote operation allows turn-on and
turn-off at a distance simply by con-
necting a momentary or maintained-
contact switch (and LED if desired)
 Multiple units may be linked to handle
higher currents and/or more than three
delay groups
 "E" model has six switched outlets on
rear panel and three unswitched out-
lets (one front, two rear). "PE" model
has three PowerCon outlets and two
IEC outlets on rear panel
 Eight foot 1.5 mmX3 heavy duty power
cord
 Three year limited warranty
I N T R O D U C T I O N
Thank you for purchasing a Furman Series
II Power Conditioner, and congratulations on
choosing the best protection for your elec-
tronics. Series II Power Conditioners feature
Furman’s revolutionary SMP+ circuitry, as well
as our exclusive Linear Filtering Technology
(LiFT). Together, SMP+ and LiFT comprise
what is, without question, the world’s most ad-
vanced and comprehensive transient voltage
surge suppressor / conditioner.
DESCRIPTION
The PS-PRO E II / PE II is a power sequencer,
meaning it is capable of powering a rack full of
equipment in three steps separated by timed
delays. It is useful whenever various kinds of
equipment must be powered up or down in
groups, rather than simultaneously. In audio sys-
tems, sequenced powering is often necessary to
allow turn-on transients from low level amplifiers
and processors to settle down before any power
amps are turned on, because simultaneous
powering would result in a loud, annoying, and
potentially destructive “pop” reaching the speak-
ers. And in any large system whose components
present an inductive load to the AC line (includ-
ing electric motors, power supplies, and power
amplifiers of all kinds), sequenced powering
can avoid excessive inrush currents that can
cause circuit breakers to trip, even though the
steady-state currents are not excessive. Power
sequencing is particularly suited to applications
where large installations must be switched by
inexperienced personnel.
The PS-PRO E II / PE II is controlled by a front
panel key-operated switch to provide security
from non-authorized users tampering with the
system. The switch has three positions: OFF,
ON, and REM, allowing for local or remote con-
trol. With remote control, one or more PS-PRO
110
THREE YEAR LIMITED
WARRANTY
Furman Sound, Inc., having its principal place
of business at 1997 South McDowell Blvd.,
Petaluma, CA 94954 (“Manufacturer”) warrants
its PS-PRO E II / PE II Power Conditioner / Se-
quencer (the “Product”) as follows:
Manufacturer warrants to the original Purchaser
of the Product that the Product sold hereunder
will be free from defects in material and work-
manship for a period of three years from the
date of purchase. The Purchaser of the product
is allowed fifteen days from the date of purchase
to complete warranty registration by mail or on-
line at the Furman website. If the Product does
not conform to this Limited Warranty during the
warranty period (as herein above specified),
Purchaser shall notify Manufacturer in writing of
the claimed defects. If the defects are of such
type and nature as to be covered by this war-
ranty, Manufacturer shall authorize Purchaser to
return the Product to the Furman factory or to
an authorized Furman repair location. Warranty
claims should be accompanied by a copy of the
original purchase invoice showing the purchase
date; this is not necessary if the Warranty Reg-
istration was completed either via the mailed in
warranty card or on-line website registration.
Shipping charges to the Furman factory or to
an authorized repair location must be prepaid
by the Purchaser of the product. Manufacturer
shall, at its own expense, furnish a replacement
Product or, at Manufacturer’s option, repair the
defective Product. Return shipping charges back
to Purchaser will be paid by Manufacturer.
THE FOREGOING IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, IN-
CLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE.
Manufacturer does not warrant against damages
or defects arising out of improper or abnormal
use of handling of the Product; against defects
or damages arising from improper installation,
against defects in products or components
not manufactured by Manufacturer, or against
damages resulting from such non-Manufacturer
made products or components. This warranty
shall be cancelable by Manufacturer at its sole
discretion if the product is modified in any way
without written authorization from Furman
Sound. This warranty also does not apply to
Products upon which repairs have been affected
or attempted by persons other than pursuant to
written authorization by Manufacturer.
THIS WARRANTY IS EXCLUSIVE. The sole
and exclusive obligation of Manufacturer shall
be to repair or replace the defective Product in
the manner and for the period provided above.
Manufacturer shall not have any other obliga-
tion with respect to the Products or any part
thereof, whether based on contract, tort, strict
liability or otherwise. Under no circumstances,
whether based on this Limited Warranty or
otherwise, shall Manufacturer be liable for in-
cidental, special, or consequential damages.
Manufacturer’s employees or representatives’
ORAL OR OTHER WRITTEN STATEMENTS
DO NOT CONSTITUTE WARRANTIES, shall
not be relied upon by Purchaser, and are not a
part of the contract for sale or this limited war-
ranty. This Limited Warranty states the entire
obligation of Manufacturer with respect to the
Product. If any part of this Limited Warranty is
determined to be void or illegal, the remainder
shall remain in full force and effect.
SERVICE
Before returning any equipment for repair, please
be sure that it is adequately packed and cush-
ioned against damage in shipment, and that it is

PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER
switches, connect (in parallel) the REM, +12V
(and optionally GND) terminals of all units. Be
sure that the mode (momentary or maintained)
of all units is set the same. Set all key lock
switches to REM. Connect a single maintained
switch or one or more momentary switches to
the nearest PS-PRO E II / PE II, as discussed
in the sections above. To avoid tripping house
breakers, the power input for each PS-PRO
E II / PE II should come from a separate 20
amp AC circuit. If you are unsure whether your
building’s wiring can accommodate multiple
fully-loaded PS-PRO E II / PE II’s, consult a
qualified electrician.
If multiple PS-PRO E II / PE II’s are controlled by
one or more momentary remote switches, all of
the PS-PRO E II / PE II’s will change state (from
on to off or vice versa) on each rising edge of
the voltage on the REM IN terminal. All remote
switches or START ON-OFF SEQUENCE
pushbuttons on any unit’s front panel will toggle
all of the units. The key lock switches on each
unit’s front panel will turn off an individual unit
that is currently on without affecting the other
units.
The STATUS lines work the same in either
mode. Each reflects the true state of the unit’s
outlets and is affected by both the “memorized”
state and by the key lock switch. A separate
LED must be used to indicate the status of each
PS-PRO E II / PE II.
To address the unusual (hopefully rare) instance
when several PS-PRO E II / PE II’s in parallel
fall out of sync, resulting in some units turning
on and others turning off when a remote button
is pushed, the remote signal line has a special
feature:
Holding the REM line high for at least 4 seconds
(whether by an actual remote switch or by any
unit’s START ON-OFF SEQUENCE switch) will
force all units to the OFF state, putting them
back in sync. This is the only way to re-sync units
other than disconnecting AC power to all units.
Remember: turning any key lock switch to OFF
does not affect the stored state, even though it
will temporarily turn the output of that unit off. If
it is turned back to REM, the PS-PRO E II / PE
II will sequence back to ON because the stored
state is still ON.
STATUS TERMINAL
The STATUS terminal is an output that may
be used to illuminate an LED at the remote
location indicating that the power is available
at the PS-PRO E II / PE II’s outlets. If it is high
(+5V), the unit is ON (or at least in the process
of sequencing ON); if low, the unit is OFF (or
sequencing OFF). Simply connect the indicator
LED between STATUS and ground (do not
use a series resistor). If the LED does not light
when the switch is in the ON position, check the
polarity and reverse the LED leads if needed.
FLASHING DELAY 1 INDICATOR
The DELAY 1 LED on a PS-PRO E II / PE II
flashes to indicate that a remote switch is off
or not connected. In Maintained Mode (JMP1,
MAINT ON’s jumper plug is installed), this will
only occur when the REM terminal is tied to the
+12V terminal. In Momentary Mode, the LED
flashes if the stored state is OFF. Since the
flashing function is only concerned with the state
of the remote switch (or switches), note that it
is possible for this LED to flash even when the
unit is ON. This could occur when the PS-PRO
E II / PE II is under local control (the key lock
switch is in the ON position). In this case, DELAY
1 would flash and DELAY 2 and DELAY 3 would
be steadily lit. This serves as a warning that the
unit will sequence OFF if the key is turned to the
REM position.
9
E II / PE II’s may be installed in remote locations
with on/off control and LED monitoring via low-
voltage control wires.
Besides its power sequencing capabilities, the
PS-PRO E II / PE II contains many other con-
ditioning and protection features. Each aspect
of its functioning will be discussed in the next
sections.
SMP+
Furman’s SMP+ surge suppression incorpo-
rates multiple protection technologies including
MOV’s along with a powerful filter to remove
noise from the AC line, making it the most ad-
vanced and reliable power conditioning tech-
nology available. Unique to Furman’s SMP+ is
its unparalleled clamping voltage. While other
designs clamp at voltages that are well above
450 Vpk, SMP+ clamps at 376 Vpk, (266 VAC
RMS). This unprecedented level of protec-
tion is only available with Furman’s SMP+
technology. Additionally, Furman’s trusted
over-voltage circuitry protects against those
all-too-frequent accidental connections to 380
VAC, by shutting off the incoming power until
the over-voltage condition is corrected.
LiFT (Linear Filtering Technology)
Unfortunately, traditional AC filter / condition-
ers have been designed for unrealistic labora-
tory conditions. Prior technologies, whether
multi-pole filter or conventional series mode,
could actually harm audio and video perfor-
mance more than they helped, due to the
resonant peaking of their antiquated, non-lin-
ear designs. Under certain conditions, these
designs could actually add more than 10 dB
of noise to the incoming AC line! Worse still,
digital data loss, the need to re-boot digital
pre-sets, or destruction of digital converters
are frequently caused by excessive voltage
spikes and AC noise contaminating the equip-
ment ground. Furman’s SMP+ with LiFT takes
another approach, ensuring optimal perfor-
mance with linear filtering and zero leakage to
ground.
SAFETY INFORMATION
To obtain best results and maximum protection
from your Furman Series II Power Conditioner,
please read this manual carefully before use.
WA R N I N G
To reduce the risk of electrical shock, do not
expose this equipment to rain or moisture.
Dangerous high voltages are present inside
the enclosure. Do not remove the covers.
Refer servicing to qualified personnel only.
The lightning flash with an arrowhead symbol
is intended to alert all users to the presence
of dangerous un-insulated voltages within the
product’s enclosure that may be of sufficient
magnitude to constitute a risk of electric shock.
IMPORTANT SAFETY
INSTRUCTIONS
(Please read prior to installation)
1. Read all safety and operating instructions
before installing your Series II unit. Retain
this manual for future reference.
2. Do not use your Series II unit near water
– for example, near a bathtub, washbowl,
kitchen sink, laundry tub, swimming pool, or
in a wet basement.
3. Do not operate your Series II unit near radia-
tors, heat registers, stoves, or other heat
sources.
4. Connect your PS-PRO E II or your PS-PRO
PE II only to a 220 – 240 VAC, 50 Hz, 16
amp grounded electrical outlet. Do not de-
2

PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER
INSTALLATION
RECOMMENDATIONS
In audio/video installations, we recommend that
power amps receive power last — plug them all
into Delay 3 or divide them into two groups and
plug one group through Delay 2 and the other
through Delay 3. Low level equipment such as
mixers and signal processors should use Delay
1. Equipment incorporating clocks or timers such
as VCR’s, or equipment that must respond to
wireless remote actuation, should use the un-
switched outlets. We suggest keeping the front
panel's unswitched outlet free for equipment that
is only in use temporarily.
The overall capacity of the PS-PRO E II / PE II
is 16 amps. This refers to the combined steady-
state current drawn by all devices plugged into
all of its nine outlets. If this combined current
level exceeds 16 amps at any time, the circuit
breaker will trip, cutting off power to your rack.
If this occurs, you must reduce the load by un-
plugging one or more units from the PS-PRO E II
/ PE II. Then push the black button on the circuit
breaker (on the front panel) to reset it.
Although 16 amps is an absolute limit, the PS-
PRO E II / PE II will allow you to come as close
as possible to using the full 16 amps, because
with power sequencing, the risk of tripping the
breaker is greatly reduced. The PS-PRO E II /
PE II handles large but temporary inrush currents
in stages, rather than simultaneously, allowing
each stage to settle to its steady-state current
draw before the next stage is powered.
Outlets and Plugs: The PS-PRO E II / PE II’s rear
panel contains four outlet pairs. The unswitched
front panel outlet (PS-PRO E II only) is limited
to 16 amp use.
feat the ground or change the polarization
of the power plug.
5. Do not make or break connections to the
PowerCon outlets of “P” models while the
unit is switched on.
5. Route the power cord and other cables
where they are not likely to be walked on,
tripped over, or stressed. Pay particular
attention to the condition of the plugs, and
to cords and cables at the point where they
exit your Series II unit. Replace damaged
cords and cables immediately to prevent
risk of fire or injury.
6. Clean your Series II unit with a damp cloth
only. Do not use solvents or abrasive cleaners.
Never pour liquid on or into the unit.
7. Your Series II unit should be serviced by
qualified service personnel if:
• The power supply cord or the plug has
been frayed, kinked, or cut.
• Objects have fallen or liquid has spilled
into the unit.
• The unit has been exposed to rain or
other moisture.
• The unit does not appear to operate normally
• The “Protection OK” indicator is not lit.
• The unit has been dropped, or the enclo-
sure has been damaged.
8. Your Series II unit requires that a safety
ground be present for proper operation.
Any attempt to operate the unit without a
safety ground is considered improper op-
eration and could invalidate the warranty.
9. Do not attempt to service your Series II unit
beyond what is described in this manual. All
other servicing should be referred to quali-
fied service personnel.
3
REM to GND = ON (jumper plugs installed on
JMP1 and JMP4)
The connection of the REM terminal to the GND
terminal initiates an ON sequence. Disconnecting
initiates an OFF sequence.
NOTE: DO NOT USE the “START ON-OFF
SEQUENCE” switch on the front panel in
Maintained Mode . If you do, you may activate
an unintended sequence. If a Furman RS-1 is
the controlling switch, contact Furman’s Tech
Support department for the proper wiring
diagrams.
MOMENTARY MODE
In Momentary Mode (jumper plug installed on
JMP2)
The PS-PRO E II / PE II has “memory” — it
only needs a momentary signal from the remote
switch to change its state from ON to OFF.
When first plugged in (or after power is lost and
reapplied for any reason) the stored state is
OFF, and the DELAY 1 LED will flash. The unit
will stay off until sequenced ON by a momentary
connection of the REM IN terminal to +12V
(the key switch must be in the REM position).
The sequence starts on the rising edge of the
signal.
The front panel START ON-OFF SEQUENCE
switch is in parallel with, and functionally
equivalent to, one or more remote momentary
switches that may be connected to the terminal
strip in the rear.
The “memory” is independent of the key switch.
This means that even if the unit is sequenced off
by turning the key lock switch to OFF, when the
key lock switch is turned back to REM, the unit
will sequence back on — it will not be necessary
to push the START ON-OFF SEQUENCE button
again. The unit “remembers” its state until the
incoming power is lost, in which case it would
default back to OFF.
The front-panel key lock switch is not the primary
means of control in the momentary mode and
should normally be left in REM. It may be a
useful secondary means of control in the rare
case of having several PS-PRO E II / PE II’s
in parallel if there is some reason to shut down
one unit without affecting the others. Because
it is a maintained-contact switch, the RS-1 is
not an appropriate remote switch for the PS-
PRO E II / PE II when it is in momentary mode.
The Furman RS-2 is the proper choice. Please
contact Furman for RS-2 wiring diagrams.
MULTIPLE UNITS
You can use more than one PS-PRO E II / PE
II to handle loads that exceed 16 amps. To
control them remotely with one or more remote
CLASS 1
WIRING
+12V
STATUS
REM
GND
OPTIONAL
STATUS
LED
OFF
ON
REM to +12V = OFF
CLASS 1
WIRING
+12V
STATUS
REM
GND
OPTIONAL
STATUS
LED
MOMENTARY MODE
8

PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER
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)
4

PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER PS-PRO E II / PE II - POWER CONDITIONER / SEQUENCER
REAR PANEL LIGHT SWITCH: All Series II units
feature a rear rack BNC socket which will accept
any 12 VAC (0.5A) gooseneck lamp assembly, (such
as the Furman GN-LED or GN-I). Simply slide the
BNC plug over the socket and rotate clockwise until
the connector snaps into the locked position. The
rear rack lamp can be powered on or off with the
rear light power switch located on the far left of the
front panel.
START ON/OFF SEQUENCE: This pushbutton
switch is used only when the key lock switch is in
REM po si tion and the PS-PRO E II / PE II is in Mo-
men tary Mode. It then acts the same as any other
remote mo men tary switch that may be con nect ed to
the rear panel terminal strip. If the switched outlets
are on, pushing it begins an OFF se quence. If they
are off, pushing it begins an ON se quence. Do not
use this switch when in Main tained Mode.
PROTECTION OK: This LED is normally on when
the power to the PS-PRO E II / PE II’s outlets is
switched on. It mon i tors the integrity of the protection
de vic es and re ports if the pro tec tion is com pro mised.
If an ex treme ly large spike is en coun tered that ex-
ceeds the PS-PRO E II / PE II’s capacity, the main
group of input pro tec tors will blow an in ter nal fuse,
caus ing the in di ca tor to go out. If this LED is not lit
when the power switch is on, full pro tec tion is not
functioning. Spike protection may still exist, but will
have a re duced ca pac i ty to absorb cur rent. If this
LED is not lit, please con tact the Furman Ser vice
Department.
EXTREME VOLTAGE SHUTDOWN: This LED in di -
ca tor is nor mal ly off. It mon i tors a hazard com mon
in the en ter tain ment in dus try—wiring faults—for
example, ac ci den tal connection to 380V.
The PS-PRO E II / PE II sens es voltages that are so
high or low that op er a tion would be impossible (under
150V or over 280V) and shuts the power down be fore
dam age can oc cur. Upon initially applying pow er to
the PS-PRO E II / PE II, this in di ca tor will be lit if the
unit is re ceiv ing below 150 volts or more than 280volts,
and pow er will not be applied to the PS-PRO E II / PE
II’s outlets. If the unit has been op er at ing with an ac-
cept able input voltage and then the volt age goes out
of the ac cept able range, the PS-PRO E II / PE II will
shut down power to all of its switched out lets si mul -
ta neous ly, without observing the OFF delay cycle,
and this LED will be gin fl ashing. When power returns
to within the acceptable range, the PS-PRO E II / PE
II will ob serve its ON delays as it re turns power to its
switched outlets, and this LED will go out.
NOTE: If the mains power is below 150 volts and has
caused the PS-PRO E II / PE II to re move power
from its out lets, the PS-PRO E II / PE II will not
restore power to its out lets until the mains voltage
is more than 175 volts. If the mains power is above
280 volts and has caused the PS-PRO E II / PE II
to remove power from its out lets, the PS-PRO E II
/ PE II will not restore pow er to its out lets until the
mains voltage is less than 265 volts. The reason for
this is to prevent the power from os cil lat ing on and
off in marginal con di tions.
DELAY ADJUST: This screwdriver-ad just able trim-
pot al lows you to set the total turn-on/turn-off delay
time from 1 to 60 seconds, as ex plained on page 6.
The trimpot ad justs both the on delay and off delay
times si mul ta neous ly. Turn the trim pot clock wise to
in crease the on and off de lay times; turn the trimpot
coun ter clock wise to de crease the delay times.
POWER STATUS (DELAY) LEDs: One green LED
is pro vid ed for each of the three delay stages.
FRONT PANEL
5
PS-PRO PE II shown here (PS-PRO E II has an extra IEC outlet
on the front in lieu of the IEC OUTLET CIRCUIT BREAKER) Each LED lights when power is applied to its cor-
re spond ing du plex outlet on the rear panel. All three
LEDs then re main lit until pow er is removed. Dur ing
the power-down delay cy cle, each LED goes off as
power to its corresponding out let is re moved. In ad-
di tion, the Delay 1 LED fl ash es if a remote switch
(or the stored state) is OFF.
UNSWITCHED OUTLET: This convenient outlet
pro vides power at all times when the PS-PRO E
II / PE II is plugged in and op er at ing under normal
power con di tions.
CIRCUIT BREAKER: The overall ca pac i ty of the
PS-PRO E II / PE II is 16 amps. Should the combined
steady-state current drawn by all devices plugged
into the unit at any time exceed 16 amps, the circuit
break er will trip, cutting off power to your rack. If this
occurs, re duce the load by un plug ging one or more
units from the PS-PRO E II / PE II, and reset it. You
can reset the circuit break er by simply toggling the
power button. However, be cause it is a thermal type,
you may have to wait a few moments after it trips for
it to cool down before it will allow you to reset it.
ON/REM/OFF SWITCH: When turned to the ON po-
sition, this key lock switch initiates an ON se quence,
applying power to the PS-PRO E II / PE II’s switched
outlets. When turned to the OFF po si tion, it be gins
an OFF se quence. In the REM position, the PS-
PRO E II / PE II will ac cept on/off com mands from
a remote switch or switch es that may be con nect ed
to the rear pan el ter mi nals.
UNSWITCHED OUT LETS: The PS-PRO E II / PE II
rear panel provides clean, fi ltered power to this pair
of unswitched outlets, adjacent to the power cord.
SWITCHED (DELAYED) OUTLETS: The PS-PRO E
II / PE II rear panel provides three pairs of switched
out lets, widely spaced to allow use of equipment with
plug- in (wall wart) trans form ers. These switched
outlet pairs are labeled Delay 1, Delay 2 and Delay
3. After the front panel switch is thrown to ON, Delay
1 outlets receive power in stant ly, Delay 2 outlets re-
ceive pow er 1-30 sec onds later and Delay 3 out lets
receive power 1-30 sec onds after Delay 2 outlets
are powered. When thrown to OFF, the se quence is
reversed, with Delay 3 losing power instantly, Delay
2 out lets los ing pow er 1-30 sec onds later and Delay
1 out lets losing power 1-30 seconds after Delay 2
out lets are shut down. The delay intervals may be
altered with the screw driv er-ad just able Delay Ad just
con trol on the front panel.
TERMINAL STRIP: Allows one or more switch es
to be connected to turn the PS-PRO E II / PE II on
and off from a remote location. Two, and sometimes
three, wires are needed to install a remote switch
(see “Main tained Mode”, page 6.) If a four-con duc tor
cable is used, an LED may be installed at the remote
end to indicate that the power is on.
REAR PANEL
6
This pair of outlets
(plus the one on front
of the PS-PRO E II)
are on regardless of
switch postion.
This pair of outlets (or powercon
on a PS-PRO PE II) comes on ap-
prox. 1/2 second after the switch
is turned on, and goes off approx.
10 seconds after the switch is
turned off
This pair of outlets (or powercon
on a PS-PRO PE II) comes on
approx. 5 seconds after the switch
is turned on, and goes off approx.
5 seconds after the switch is
turned off
This pair of outlets (or powercon
on a PS-PRO PE II) comes on
approx. 10 seconds after the switch
is turned on, and goes off approx.
1/2 seconds after the switch is
turned off
Terminal
Switch
Terminal
Switch
PS-PRO PE II
PS-PRO E II