Furman ASD-120 2.0 Users Manual
ASD-120 2.0
OWNER’S MANUAL
SIX CHANNEL SEQUENCING POWER DISTRIBUTION
START
SEQUENCE
DELAY A DELAY B DELAY C
(SEE COVER PLATE)
DLY
1 2 3 4 5 6 7
ADJ
X Y Z
PHASE
ALWAYS ON
ALWAYS OFF
REMOTE
OFF ON
DELAY D DELAY E DELAY F
WARNING! ELECTRIC SHOCK HAZARD. CONNECTION OF A POWER
INPUT CABLE TO THIS DEVICE AND TO A POWER SOURCE MUST BE
DONE BY QUALIFIED PERSONNEL ONLY.
DANGER: MANIPULER SEL ON LES INSTRUCTIONS DU
FABRICANT ET CONFIER LA MAINTENANCE A UN T
ECHNICIEN QUALIFIE
INPUT 120 / 3Ø, 208 / 240 VAC
14400 WATTS – 120 AMPS MAX
DELAY A
20A MAX
ASD-120 2.0
120 AMP POWER SEQUENCER
DELAY B
20A MAX
DELAY C
20A MAX
DELAY D
20A MAX
DELAY E
20A MAX
DELAY F
20A MAX
FORCE OFF
12V STAT REM GND
DELAY OUTPUTS
NC A B C D E F NO
DRY RELAY CONTACTS - RATING 48V / 1 AMP
REMOTE
10007825 REV. B ASD-120 2.0 INST. 10-15
INTRODUCTION
Thank you for choosing a Furman product and congratulations on your choice
of the ASD-120 2.0. The ASD-120 2.0 is a six channel power sequencing
device intended for use in installations where multiple electrical loads must be
powered on and off in a delayed and orderly sequence. Typical applications for
the ASD-120 2.0 include: touring PA or sound reinforcement systems, musical or
theatrical acts, mobile recording facilities, and on-location film or video shoots.
Essentially, any situation where AC power must be distributed to multiple circuits
and activated or deactivated in discrete stages would benefit from the use of an
ASD-120 2.0.
• All settings, options, and controls are now easily accessible from the front panel
• The output capacity of the 12V remote interface has been increased to 250mA
• Maximum sequencing delay has been increased to 7 minutes per stage
• The operation of the Remote interface has been harmonized with other Furman
products
• The Force Off warning is now highly visible
• The sequencing bypass switches are now low profile to prevent inadvertent
operation
• A security cover has been added to prevent unauthorized access.
• Rear rack mounting ears have been added to enhance road worthiness
Please read this manual completely and carefully and review the installation man-
• Phoenix-type connectors have been used to simplify installation
ual before installing or applying power to your ASD-120 2.0. Those familiar with
the ASD-120 will recognize that the ASD-120 2.0 provides the same functionality
Please note:
as the preceding version but adds a number of features that the user might
appreciate. These new features include the following:
Because the ASD-120 2.0 switches hazardous voltages and high currents, we
recommend that installation be performed by a qualified electrician. For safe
operation, the ASD-120 2.0 must be installed in accordance with local/municipal
and National Electrical Codes. Please feel free to contact Furman Technical Services if you have any questions or concerns regarding the installation, operation,
or service of your ASD-120 2.0.
BEFORE YOU BEGIN, PLEASE INSPECT UPON RECEIPT
This box should include the following items:
1. Model ASD-120 2.0
2
2. Two adjustable rear rack mounting ears
3. Security cover with Two 6-32 3/8”
Screws
4. One pair of security keys
5. Removable Rack Handles
6. 1.5 in. Cable Clamp (Please see wiring
instructions)
WARNING! ELECTRIC SHOCK HAZARD. CONNECTION OF A POWER
INPUT CABLE TO THIS DEVICE AND TO A POWER SOURCE MUST BE
DONE BY QUALIFIED PERSONNEL ONLY.
DANGER: MANIPULER SEL ON LES INSTRUCTIONS DU
7. Two pin Phoenix-type connector
8. Four pin Phoenix-type connector
9. Eight pin Phoenix-type connector
6
FABRICANT ET CONFIER LA MAINTENANCE A UN T
ECHNICIEN QUALIFIE
INPUT 120 / 3Ø, 208 / 240 VAC
14400 WATTS – 120 AMPS MAX
IMPORTANT SAFETY NOTE:
While the subject of attaching a power cable to the ASD-120 2.0 is covered in
the Wiring Instructions, the connection to utility power or generator power is
not. We strongly recommended that the ASD-120 2.0 be installed by a qualified
electrician. Please refer to the “Wiring Instructions” section in this manual.
DELAY A
20A MAX
START
SEQUENCE
ASD-120 2.0
120 AMP POWER SEQUENCER
DELAY B
20A MAX
1
DELAY A DELAY B DELAY C
DELAY C
20A MAX
DELAY D
20A MAX
DLY
ADJ
(SEE COVER PLATE)
1 2 3 4 5 6 7
PHASE
X Y Z
3
ALWAYS ON
ALWAYS OFF
5
DELAY E
20A MAX
DELAY D DELAY E DELAY F
DELAY F
20A MAX
REMOTE
OFF ON
7
FORCE OFF
DELAY OUTPUTS
NC A B C D E F NO
DRY RELAY CONTACTS - RATING 48V / 1 AMP
4
8
REMOTE
12V STAT REM GND
9
1
TABLE OF CONTENTS
Introduction, Before You Begin, and Important Safety Note__________________________________________________________________ 1
Important Safety Instructions _____________________________________________________________________________________ 2
Wiring Instructions ___________________________________________________________________________________________ 3, 4
Rear Rack Mounting Ears _________________________________________________________________________________________ 4
Product Features _____________________________________________________________________________________________ 5
Product Overview ___________________________________________________________________________________________ 6, 7
Front Panel Configurations and Features_______________________________________________________________________ 7, 8, 9, 10
ASD-120 2.0 Programming Summary_______________________________________________________________________11, Back Cover
Rear Panel Control Terminal Interface ________________________________________________________________________________12
Advanced Installation Topics___________________________________________________________________________________13, 14
Local Operating Modes____________________________________________________________________________________15, 16, 17
Product Installation Examples_______________________________________________________________________________ 18, 19, 20
Specifications _______________________________________________________________________________________________ 21
Warranty Information __________________________________________________________________________________________ 22
IMPORTANT SAFETY INSTRUCTIONS
WARNING
• With the exception of input wire connections, there are no user serviceable
parts inside the ASD-120 2.0. The top panel should never be removed while
power is applied to the unit.
• Input power must be connected by a qualified electrician. The unit must be
properly grounded through a protective earth ground connection.
• Refer all servicing to qualified personnel. Servicing is required when the unit
has been damaged in any way or fails to operate as designed.
• The ASD-120 2.0 is intended for use in a dry environment. Do not use this
product in or near water. To reduce the risk of fire or electric shock, do not
expose this device to rain or moisture.
• The device is intended for AC power sequencing. All output circuits should be
sequenced OFF prior to removing power to the unit.
• Do not install this product near heat sources or other equipment that generates
excessive heat.
CAUTION
• The ASD-120 2.0 remote interface differs from the original ASD-120. While
the original ASD-120 REM terminal input was compatible with AC voltages, the
ASD-120 2.0 is not. For example, if an original ASD-120 is to be controlled by
the ASD-120 2.0, please use the Direct Current 12V and REM terminals of the
ASD-120 2.0 to provide the DC control signal to the REM input of the older ASD120 product.
• Ground loops at the control terminals and remote interface should be avoided.
The ASD-120 2.0 remote interface is designed to provide the flexibility of being
connected to multiple pieces of equipment within the same power distribution
system. To avoid ground loops, do not connect the remote interface to more than
one non-isolated ground referenced interface.
• A building’s AC Power Distribution System is grounded at the Utility Service
Entrance or Service Point. The ASD-120 2.0 Remote interface control is not intended for applications between multiple buildings or where connected equipment
has multiple AC grounds or earth paths. If the ASD-120 2.0 Remote interfaces are
connected to equipment grounded elsewhere, catastrophic voltage irregularities
can damage the remote interface. All control equipment interfacing the ASD120 2.0 power distribution network must be properly grounded through a single
protective earth ground connection. Please consult a qualified electrician if there
are questions concerning equipment grounding.
2
20A MAX
DELAY A
20A MAX
DELAY B
20A MAX
DELAY C
20A MAX
DELAY D
20A MAX
DELAY E
20A MAX
DELAY F
FORCE OFF
DELAY OUTPUTS
REMOTE
NC A B C D E F NO
12V STAT REM GND
DRY RELAY CONTACTS - RATING 48V / 1 AMP
WIRING INSTRUCTIONS
WARNING! ELECTRIC SHOCK HAZARD. CONNECTION OF A POWER
INPUT CABLE TO THIS DEVICE AND TO A POWER SOURCE MUST BE
DONE BY QUALIFIED PERSONNEL ONLY.
DANGER: MANIPULER SEL ON LES INSTRUCTIONS DU
FABRICANT ET CONFIER LA MAINTENANCE A UN T
ECHNICIEN QUALIFIE
INPUT 120 / 3Ø, 208 / 240 VAC
14400 WATTS – 120 AMPS MAX
Prior to use, an appropriately sized power cable must be installed on the ASD120 2.0. A qualified electrician should be employed for selection of cabling and
installation. Bus bars for the connection of AC input power are accessible when
the top panel is removed. One safety ground terminal is also provided. The ASD120 2.0 is configured for 120/208 three phase power at time of shipment, but a
120/240V single phase source can be supported. Heavily loaded circuits can be
re-distributed between phases to balance the load as necessary.
The following instructions are provided as a guide for powering the ASD-120 2.0.
All steps should be performed while the unit is disconnected from power and
before it is installed in an equipment rack.
1. Determine the power source to be used with the ASD-120.
In North America, there are two possibilities: 120/208V three phase, and
120/240V single phase (sometimes called “Single Split”). Three Phase requires
an additional conductor, but it provides better copper utilization. A three phase
source will require five conductors; X (L1), Y (L2), Z (L3), N, and Safety GROUND.
The source must be a “Y” or “Wye” configuration and must include a star point
neutral. A 120/240V single phase source is connected with four conductors;
X (L1), Y (L2), N, and Safety GROUND. If the loads are balanced, the neutral current will be zero, but if the load is predominately on one phase, the neutral must
support the entire load current. Since phases are distributed to different circuits
a neutral conductor of the same gauge is the minimum recommendation,
a licensed electrician may recommend a thicker gauge neutral based on other
technical considerations.
120/208 3 Phase
5 Conductor
3 Conductors at 40A
Loss/ft (W) vs. % Load
120/240 Single Phase
4 Conductor
2 Conductors at 60A
Loss/ft (W) vs. % Load
AWG 100% Load 50% Load 100% Load 50% Load
6 3.8 W/ft 0.9 W/ft NA NA
4 2.4 W/ft 0.6 W/ft 3.6 W/ft 0.9 W/ft
2 1.5 W/ft 0.4 W/ft 2.3 W/ft 0.6 W/ft
Table 1 – Cable Loss Comparison
If the equipment is to be portable, a common connection method is to permanently attach a short cable whip to the Furman and terminate it with a high-current
connector. A long feeder cable with a mating connector would then be prepared
which could easily be disconnected for storage.
3. Prepare and connect the AC supply:
The AC supply cable will be connected to the internal bus bars via terminals that
secure the individual conductors with set screws. These terminals can accept
wires as large as 2 AWG. Strip one end of the cable to expose the wires. When
removing the outer jacket, be careful not to nick or cut into the insulation of the
individual conductors. When stripping the individual conductors, be careful not
to cut through any of the copper strands. All of the individual conductors should
be stripped one-half inch. After threading the cable end through the strain relief
clamp, connect the stripped conductors to the bus bar blocks. Be sure to put
each wire in the lower part of its terminal, so that it is compressed above and be-
low by copper rather than by the set screw itself. Tighten the set screws securely.
2. Select a cable and determine its length.
If the ASD-120 2.0 is installed in a permanent or semi-permanent location, it is
possible to connect it with flexible metal-jacketed conduit. A flexible type SOW
or SOOW supply cable known as a “whip” is recommended for portable use. In
three phase applications, the whip must carry a rating of 40 Amps minimum in
each of three out of five conductors; and for a single phase 120/240 source, a 60
Amp rated minimum for load current in two out of four conductors. The minimum
recommended conductor gauge is 6AWG for a 120/208 three phase source and
4AWG for a 120/240 single phase source.
Cable efficiency losses per foot are listed in Table 1. Losses are dramatically
reduced at lower currents since the losses are a function of the square of the
current. A larger cable size should be considered for critical loads that have high
peak currents, such as power amplifiers. Cable lengths can be longer if the load
current is significantly below the rated maximum, and if large transient peaks are
not expected.
3
POWER DISTRIBUTION BLOCK
MAX VOLTS: 240 VAC
MAX AMPS:
60A / PHASE
120A TOTAL
TORQUE SPECIFICATIONS
AWG lb-in (N-m)
2 45 (5.1)
3 50 (5.6)
4 - 6 50 (5.6)
4. Load Balancing:
The load should be balanced between phases. As shipped, the load circuits are
evenly divided among the X, Y, and Z bus bars in support of a balanced 120/208V
three phase input. If a 120/240 source is connected to the ASD-120 2.0, the Z
bus bar is not used and the load conductors connected to this bus bar must be
moved to the appropriate X and Y bus bars. (Please see Table 2.)
By default, there are two 12 AWG black conductors connected by Fast-On terminals to each bus bar. The black wires are labeled with a letter (A, B, C, D, E, or F)
corresponding to the circuit to which it is connected. Since the load is applied in
a sequence, the loads should be alternately applied to each phase as determined
by the position of the load phase conductors.
An example of how the loads should be connected is shown in Table 2.
An example of how the loads should be connected is shown in Table 2.
6. Next, terminate the source end of the cable:
Source
120/208
Three Phase
120/240
Single Phase
Blue, Brown, or Orange
Cable
Color
Black
Red
Black
Red
Buss
Bar
X
Y
Z
X
Y
Circuits
A,D
B,E
C,F
A,C,E
B,D,F
Table 2. Load Balancing Example
To move a wire, grasp it by the terminal and pull straight up. Then re-position it
over an unused Fast-On male terminal on the appropriate bus bar and push down
firmly. Do not pull on the wires as this may compromise the integrity of the wire
crimp. If it is necessary to move load conductors, it will not be necessary to move
the smaller Phase LED indicator wires.
5. Tighten the cable strain relief clamp firmly:
At least one half inch of the outer jacket must extend beyond the clamp into the
interior of the unit. Replace the top cover. This completes the internal wiring of
the ASD-120 2.0.
REAR RACK EAR MOUNTING
The source end of the cable must be terminated by a qualified electrician
in accordance with national, local and municipal safety standards.
7. Optional 120V single phase source:
The ASD-120 2.0 can be powered from a 120VAC source, with the AC source
connected between the X and NEUT bus bar inputs, but the source current must
not exceed 60 amps and the maximum load must not exceed the source current.
The number of output circuits connected to the X bus bar must not exceed the
source current divided by 20A. For example, a 120 Volt 60 Amp feed will limit the
Furman ASD-120 2.0 to a capability of only (3) 20A breaker circuits, and therefore, only 3 internal load conductors are recommended. (Only three 20A circuits
will be operational and the other three 20A circuits must be defeated.)
Internal power distribution block terminals (See torque specs on page 3).
1. Remove the screws from the side of the ASD-120 2.0 adjustable rear rack ear.
START
DELAY A DELAY B DELAY C
SEQUENCE
ASD-120 2.0
120 AMP POWER SEQUENCER
2. Reverse the rack ears and reattach the rack ears to the chassis (as shown here).
3. Adjust length to
connect to back side of
equipment rack. (Maximum
reach from the front to the rear
is 20.75 inches).
START
SEQUENCE
ASD-120 2.0
120 AMP POWER SEQUENCER
DELAY A DELAY B DELAY C
17 in.
DLY
ADJ
X Y Z
(SEE COVER PLATE)
DLY
1 2 3 4 5 6 7
ADJ
X Y Z
19 in.
(SEE COVER PLATE)
1 2 3 4 5 6 7
PHASE
ALWAYS ON
ALWAYS OFF
PHASE
ALWAYS ON
ALWAYS OFF
DELAY D DELAY E DELAY F
DELAY D DELAY E DELAY F
REMOTE
OFF ON
10 in. (allow an extra inch
for connectors, buttons, etc.)
REMOTE
OFF ON
3.5 in.
4
START
SEQUENCE
REMOTE
DLY
ADJ
DELAY A DELAY B DELAY C
PHASE
X Y Z
DELAY D DELAY E DELAY F
OFF ON
1 2 3 4 5 6 7
ASD-120 2.0
120 AMP POWER SEQUENCER
(SEE COVER PLATE)
ALWAYS ON
ALWAYS OFF
S
E
Q
REMOTE
OFF ON
PRODUCT FEATURES
• 120 Amp 120 Volt AC Sequenced Distro and Controller
• Six Independent 20 Amp Circuits @ 120Volts - 120 Amp Total Load Capacity
• Rear panel NEMA 5-20R duplex outlet and optically isolated DC relay outputs
on each of six Delay Banks.
• Front panel Status Power LED, Bypass Switch and Circuit Breaker for each
Delay Bank
• 120A power distribution block accommodates 120V/240V single phase, or
120/208-Y three phase power
• X Y Z Status LED confidence indicators for each Input Phase
• Sequence unit ON or OFF from front panel or by remote switch
FRONT PANEL FEATURES
Front Panel Start
Sequence Switch
Indicator LEDs for
Delay A, B and C
Multi-function DIP Switch
7 Position ON/OFF
• Independent three position switches to power sequence (SEQ) or Bypassed ON
or OFF each Bank
• Adjustable Delay with up to 7 Minute Interval between Banks, Total maximum
Sequence Time 35 minutes
• Remote interface with an isolated 12VDC, 250mA power source for external
secondary applications.
• Signal level relay contacts (NO or NC) used to control and sequence other units.
• Front panel key switch and Anti-tamper DIP cover for added security
• Force Off emergency shutdown
• Rugged two rack space (2RU) chassis
Sequence Bypass Switch
6 Position ON/SEQUENCE/OFF
Indicator LEDs for
Delay D, E and F
REAR PANEL FEATURES
WARNING! ELECTRIC SHOCK HAZARD. CONNECTION OF A POWER
INPUT CABLE TO THIS DEVICE AND TO A POWER SOURCE MUST BE
DANGER: MANIPULER SEL ON LES INSTRUCTIONS DU
FABRICANT ET CONFIER LA MAINTENANCE A UN T
5
Adjustable
Rear Mount
Rack Ears
1.5” Cable Clamp
Input 120V/Phase
DONE BY QUALIFIED PERSONNEL ONLY.
ECHNICIEN QUALIFIE
INPUT 120 / 3Ø, 208 / 240 VAC
14400 WATTS – 120 AMPS MAX
Circuit Breakers 20A
for Delay A, B and C
DELAY A
20A MAX
DELAY B
20A MAX
Delay
Adjustment
Indicator LEDs for
Phases X, Y and Z
Circuit Breakers 20A
for Delay D, E and F
Security Cover to Protect
Program Settings
DELAY C
20A MAX
DELAY D
20A MAX
DELAY E
20A MAX
Six 20A duplex outlets Force Off, 2 Pin
Phoenix-type
Connector
Front Panel Key Switch
for Remote Security
DELAY F
20A MAX
FORCE OFF
REMOTE
12V STAT REM GND
DELAY OUTPUTS
NC A B C D E F NO
DRY RELAY CONTACTS - RATING 48V / 1 AMP
Delay Outputs, 8 Pin
Phoenix-type
connector
Integrated Front Panel
Rack Ears
Remote, 4 pin
Phoenix-type
connector
PRODUCT OVERVIEW
The ASD-120 2.0 can be used as a stand-alone unit or in combination with other
Furman power distribution devices. The ASD-120 2.0 provides six sequenced
120V, 20A circuits for a total load power of 14.4kW. Higher levels of power
can be achieved by connecting additional Furman sequencers or other power
conditioning products, including additional ASD-120 2.0 units. Furman products
provide a practical means of centralized control over an extensive network of
power distribution and conditioning equipment.
As most sound reinforcement professionals know, AC power sequencing is necessary because the majority of equipment damage occurs when devices are either
powered up or powered down. In addition, power sequencing is needed whenever
various kinds of equipment must be powered up or down in discrete groups,
rather than simultaneously. Power sequencing allows equipment to be powered
up and powered down in an orderly and time-delayed sequence.
In professional audio, power sequencing is used to prevent speaker “pop” in
speaker cabinets, enclosures and line arrays. The “pop” is generated when audio
sources are switched on or off while an amplifier is still “live” or energized. The
activation of source (signal processing) equipment often creates a small spike of
transient voltage. When this voltage is amplified by the amplifiers, the resulting
“pop” can be deafening and can easily damage speaker voice-coils. The reverse
or “power down” of signal processing equipment can create a similar effect as
during power down many devices emit uncontrolled transients. Power down
transients can result in speaker “pop” and damage speaker components as well.
Because AC power sequencing prevents this universally unwanted and often
costly circumstance, AC power sequencing is prudent.
Power sequencing has the added benefit of preventing nuisance breaker trips by
offsetting the in-rush current demands of connected equipment over time. It is
not difficult to imagine the extreme current demand that would be placed upon a
breaker if all connected loads were to be activated at the same time. Power sequencing allows equipment to be sequenced on in discrete stages - which allows
each device to power up and current demands to stabilize individually. Although
each device will undergo its own in-rush current at power up, because these
events occur over time, the stress placed upon the breaker is greatly reduced.
For this reason, AC power sequencing is a reliable strategy for protecting event
productions and electrical infrastructure.
Years ago Furman introduced the original ASD-120, along with a full line of power
sequencers, to address the concerns outlined above. Furman power sequencing
products have been used by professional audio experts in a multitude of applications for decades. When conceiving the ASD-120 2.0, we listened intently to the
voice of our customers and industry experts. We appreciate all of the feedback
and believe that the ASD-120 2.0 delivers the power switching needs and wishes
of all of our customers.
The ASD-120 2.0 has a host of features and options that will be highlighted in
this manual.
Here is a quick overview:
The ASD-120 2.0 can be thought of as an array of six high current relays that operate under the control of a microprocessor. The six relays (referred to as DELAY
A through DELAY F) control the ON/OFF state of the power to six receptacles (also
referred to as DELAY A through DELAY F) located on the rear panel. The ON or
OFF state of each of the six receptacles is indicated by a series of six green status
LEDs on the front panel. There are a series of six circuit breakers located on the
front panel (underneath the status LEDs) that protect the loads connected to each
of the receptacles, DELAY A through DELAY F. Finally, there are a series of six low
power relays that operate in unison with the power switching relays. The contacts
of these low power relays are available on the right side of the rear panel and
allow the user to connect low voltage and low power devices to the ASD-120 2.0.
The ASD-120 2.0 has a rectangular security cover on the front panel. This cover
can be removed to provide access to an array of switches that are used to configure the operation of the ASD-120 2.0. Details of these switches can be found
later in this manual.
The basic operation of the ASD-120 2.0 can be described as follows:
Six individual Delay Banks feature a 120 Volt 20 Ampere AC circuit, and each AC
circuit can be sequenced on or off with a programmable delay at set intervals.
On/Off sequences can be initiated with ASD-120 2.0 front panel switches or a
wired connection to the ASD-120 2.0 rear panel Remote interface. Each Delay
Bank has one NEMA 5-20R duplex provided on the rear panel. In addition, any
Delay Bank can be configured as Always On or Always Off independent from the
sequence. The Delay Banks also have their own independent DC relay terminal
for triggering other devices, including another ASD-120 2.0 or any Furman
sequencing product.
The ASD-120 2.0 should be configured at time of installation. X Y Z Status LED
indicators confirm the input phase of AC power. The configuration DIP switches
are located behind a cover plate in the center of the front panel. A potentiometer
is used to set delay timing intervals. After the ASD-120 2.0 is configured, the
cover plate prevents inadvertent changes and tampering. A locking switch with a
removable key is provided for added security.
6
START
SEQUENCE
REMOTE
DLY
ADJ
DELAY A DELAY B DELAY C
PHASE
X Y Z
DELAY D DELAY E DELAY F
OFF ON
1 2 3 4 5 6 7
ASD-120 2.0
120 AMP POWER SEQUENCER
(SEE COVER PLATE)
ALWAYS ON
ALWAYS OFF
S
E
Q
REMOTE
DLY
ADJ
DELAY A DELAY B DELAY C
DELAY D DELAY E DELAY F
OFF ON
1 2 3 4 5 6 7
(SEE COVER PLATE)
ALWAYS ON
ALWAYS OFF
S
E
Q
REMOTE
DELAY D DELAY E DELAY F
OFF ON
The ASD-120 2.0 Remote interface located at the rear panel provides a great
deal of flexibility. The ASD-120 2.0 can be configured to command or respond
to other controller-type equipment via low voltage DC impulses. If configured
as a remotely controlled power source, the ASD-120 2.0 can respond to
continuous maintained or momentary contact closures, open contacts, or the
presence or absence of external DC voltage. At the same time, maintained
control signals can be generated by the ASD-120 2.0 triggering connected
equipment into or out of operation. Low level DC relay contacts A through
F on each Delay Bank provide the means for external control of equipment
associated with each AC circuit Delay Bank.
Other Furman products which have remote interfaces compatible with the
ASD-120 2.0 are listed below. All of these products can be used with the
new ASD-120 2.0 through low voltage DC control.
• Furman Contractor Series CN-1800S, CN-2400S, CN-15MP & CN-20MP
• PowerPort & Legacy MiniPorts MP-15, MP-20, MP-15Q & MP-20Q
• M-8S & Legacy Sequencers PS-8R, PS-PRO, PS-8R II & PS-PRO II
• Original Furman ASD-120 & Powerlink
• RS-1 & RS-2 Remote System Control Panels
• The Furman PS-REL AC Relay Accessory
FRONT PANEL CONFIGURATION & FEATURES
Installation is simplified by the unit’s 19 inch rack-mount design and hidden
rear rack-mount ears. This feature is found alongside an industry standard 2RU
chassis. The hidden rear mounts are adjustable.
Once installed and configured, you may expect years of trouble-free operation
from the ASD-120 2.0. If during the service life of the product a question or
issue may arise, please welcome our assistance and contact Furman. The unit
is backed by a three year manufacturer’s warranty detailed on page 22 of this
manual.
Note: The ASD-120 2.0 has no line cord or master breaker, and is designed to
be wired to a single phase 120/240V source with 60 amps per phase capacity, or
to a three phase 208 WYE source with at least 40 amps capacity per phase.
Start Sequence Button Switch
The Start Sequence button located on the left side of the front
panel can be used for sequencing power up or power down.
The “START SEQUENCE” button is only activated when the key
switch is set to the “Remote” mode. The function of this switch
depends on the position of DIP Switch 7 and the duration of time
that the button is depressed. Please note, setting the key switch
to ON defeats operation of the START SEQUENCE push button.
Both the key switch and the START SEQUENCE button operate in
either Maintained or Momentary mode.
Phase Indicators:
The ASD-120 2.0 features a set of three phase indicators; X, Y, and Z that will
illuminate green when the corresponding phase (X, Y, and Z) is receiving power.
These are sometimes referred to as “confidence indicators” because when these
lamps are illuminated, you can be confident that the ASD-120 2.0 is receiving
power. Although three indicators are provided, all three indicators will only be
illuminated when the unit is connected to 3-phase 208-WYE power. When using
240 split phase, only two of the only phase indicators (X and Y) will illuminate
Note: X Y Z Status LED indicators confirm AC power on each Input Phase.
7
START
SEQUENCE
PHASE
X Y Z
Delay Bank Indicators:
The ASD-120 2.0 has six Delay Bank LED indicators that will illuminate green
when the corresponding Delay Bank (A through F) has been activated. When a
Delay Bank LED is OFF, the corresponding rear panel receptacle has not been
activated. When all Delay Banks have sequenced ON, all of the Delay Bank LEDs
should illuminate green. When all Delay Banks have sequenced OFF, all of the
Delay Bank LEDs should be off.
Note that the Delay Bank LED indicators only indicate when a bank has been
activated. The indicators do not guarantee that power is being delivered to the
corresponding Delay Bank. If a Delay Bank breaker has been tripped, the Delay
Bank LED indicator may still illuminate green even though power is not being
delivered to the Delay Bank with an open breaker.
The Delay Bank LED indicators are also used to indicate when the ASD-120 2.0
has been disabled due to a FORCE OFF condition. When the ASD-120 2.0 is in
FORCE OFF mode the Delay Bank LED indicators will flash on and off. More on
FORCE OFF mode later…
Note: A front panel Delay Bank LED indicator confirms the active state of the AC
duplex and its associated DC relay.
Loading...