Cooper Bussmann PS-EXP, PS-6, PS-8 User Manual
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Notication
POWERPATH™ NAC POWER SUPPLIES
PS-EXP
Description
Th e Wheel oc k S er ies P S-6 a nd PS -8 ar e 24VDC, fi ltered and
regulated, supervised remote power supply/battery chargers are
used for supervision and expanded power driving capability of Fire
Alarm Notification Appliance Circuits. The PS-6 provides 6 amps of
power distributed across 4 outputs, while the PS-8 provides 8 Amps
across 4 output. In addition the PS-8 provides additional room in
the chassis for accessories like an Addressable Control Module, with
mounting studs.
The Power Supplies may be connected to any 12V or 24V (FWR or
DC) Fire Alarm Control Panel (FACP) by using a Notication Appliance
Circuit (NAC) or a “Dry Contact”. Primary applications include NAC
expansion (supports ADA requirements) and auxiliary power to
support system accessories. This unit provides ltered and regulated
24VDC, up to four (4) Class “B”, two (2) Class “A”, or two (2) Class
“B” and one (1) Class “A” Notification Appliance Circuits. With the
optional plug-in PS-EXP module the unit supports (8) Class “B” or
(4) Class “A” Notification Appliance Circuits. Additionally, an auxiliary
power output of 2.5 Amps (disconnected upon AC power loss or an
alarm condition) or up to 0.240 A of constant power on the PS-8 and
0.075 A of constant power on the PS-6.
The Wheelock Power Supplies can accommodate 7 or 12 AH batteries
inside its lockable chassis. Using an external battery cabinet it can
charge up to 33 AH batteries (pending UL testing). Two FACP NAC
circuits or two “Dry” contact initiating circuits can be connected to the
inputs. These inputs can then be directed to control supervision and
power delivery to any combination of the four (4) outputs. Each output
is rated at 3.0 Amps (Class “B”) or (Class “A”) and can be programmed
to generate a steady or Code 3 Temporal Horn sound and a strobe
output under alarm condition. Total load for the PS-6 and PS-8 NAC
circuits must not exceed the power supplies rated output.
The Power Suppliesunder non-alarm condition provides independent
supervision for Class “A” and Class “B” FACP NAC circuits. In the
event of circuit trouble, the FACP will be notied via the POWERPATH
steered input (IN1 or IN2). In addition there are two sets of trouble
reporting terminals, one used for AC power loss reporting and the
other for all troubles. The AC power loss reporting, on the common
trouble terminals and on IN1 or IN2, can be delayed for either 30
seconds or 170 minutes. The AC power loss terminals will always
report the trouble within 1 second after loss of AC power.
PS-6
The PS-6 and PS -8 Power Supplies are UL Listed under UL
Standard 864, 9th Edition to be used with any 24 volt Listed
Regulated notification appliances. They include the capability
to synchronize Wheelock strobes and horns and to silence the
horn signal when horn/strobes are operating on two wires.
Approvals
• Approvals Include: UL Standard 864, 1481, California State
Fire Marshal (CSFM), Factory Mutual (FM)
• Compliant with NFPA 72
Inputs
• 120VAC, 50/60Hz, 4.25 Amps (PS-6/8) and 5.32 Amps
(PS-8) Operating Power in Alarm
• 240VAC, 60Hz, 2.42 Amps (PS-6E and 3.22 Amps (PS-8E) ‘
Operating Power in Alarm
• 24VDC Battery Backup Connection
• Two (2), 12V or 24V NAC Initiating Circuits (8-33V at 5mA)
FWR or DC
• Two (2) “Dry” Contact initiating Circuits
• Accepts two (2) Class “A” or two (2) Class “B” circuit inputs
• Built in battery charger for sealed lead acid or gel type
batteries
Outputs
• NAC outputs are 24VDC, 3.0 Amps each, power limited
• 8 Amps on PS-8 and 6 Amps on the PS-6 total alarm current
PS-8
...Features continued on next page
• Capable of four (4), Class “B” circuits
• Capable of two (2) Class “A” circuits
• Capable of one (1) Class “A” circuit and two (2) Class “B” circuits
• Capable of (8) Class “B” or four (4) Class “A” circuits with optional PS-EXP module
• Temporal (Code 3), constant voltage output, Wheelock Sync output or True input to output follower mode
• Built-in Wheelock synchronization mode that can be fed to any or all of the output circuits
• Input and output can be synchronized with “IN>OUT SYNC” mode (DSM, 2nd POWERPATH™ or FACP with
synchronization protocol is required)
• Audible silence capability
• Filtered and electronically regulated output
• 2.5 Amp auxiliary power limited output with reset capability. (Removed upon AC loss or alarm. Automatic reset 30 seconds after
AC power returns or the alarm condition is over) or 0.075 Amps (PS-6) or 0.240 Amps (PS-8) of auxiliary power limited output
which remains on during AC loss or an alarm condition when congured for 24 hour battery backup
Supervision
• Compatible with 12V or 24V (FWR or DC) FACP
• Signaling appliance circuits are supervised and steered to either IN1 or IN2
• 10K Ohm, 1 Watt (Wheelock Model #MPEOL) End of Line Resistor (EOLR) for supervision of all outputs
• 37 distinguishable trouble diagnostics
• AC loss trouble reported over a separate set of contacts (delay of 1 second)
• All troubles are reported over the common trouble contacts (AC loss can have a delay of 30 seconds or 170 minutes)
• Automatic switchover to standby battery when AC fails
• Thermal and short circuit protection with auto reset
• Input and output status LED indicators
• AC fail supervision
• Battery presence and low battery supervision
• Ground Fault Detection, with diagnostics to indicate which circuit fault is on
• Latching LED’s for NAC trouble annunciation and Diagnostic trouble LED’s (latching can be disabled)
Power
• Not Battery Dependent
• Automatic switch over to standby batteries when AC fails
• Supports sealed lead acid or gel type batteries
• Fused battery protection
• Thermal and short circuit protection with auto reset
• Supports both 7AH or 12AH batteries in the same cabinet
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