Potter PSB-10, Installation, Operation And Instruction Manual

Page: 39 / 48

PSB-10:3
PSN-106, PSN-64, PSB-10 • 5403590 • REV A • 12/09
General Description
The Potter PSB series of Bulk power supplies provides continuous power to devices which require 24VDC power. The PSB sup-
ply features an effi cient switch mode power supply design which is up to 50% more effi cient than linear mode supplies. The PSB
is used whenever power is needed to power a device which requires up to 10 amps continuously (PSB-10), which is best accom-
plished by mounting the PSB near the load being serviced, this minimizes voltage drops caused by long cable lengths. Backup
power is provided via batteries which can range in size from 7-55 Ahr (17Ahr in cabinet, larger batteries require accessory battery
box). Battery integrity is monitored via the built in charger which features a low battery cut-off circuit to protect against damage
to the batteries during deep discharge.
Product Features
Input voltage: 120/240VAC 50/60Hz •
Output voltage 27.3VDC @10A •
Supervised Battery Charger: 27.3 @ 1A (supports 7-55 Ahr batteries) •
Integrated battery cut-off circuitry to protect batteries from deep discharge •
Two Common Trouble Relays (5A at 30VDC) •
General System Trouble (programmable for AC delay via dip-switch) •
Low AC Trouble •
Diagnostic LED’s •
Status LED’s for Active NAC and NAC trouble conditions •
Status LED’s for Earth Fault (Amber), AC (Green), Battery Fault (Amber) •
Trouble Memory feature captures troubles which have previously restored. •
Mounting Instructions
The standard mounting is a surface mount cabinet. The unit must be securely attached to a permanent partition using suitable
fasteners. Five mounting holes are provided to accept ¼ inch diameter screws maximum. There are seven knockouts provided.
Operating Instructions
Normal Operation
The PSB-10 provides constant power to the devices which are connected to it. In the event of a loss of AC the PSB-10 will switch
to battery backup and indicate a trouble condition.
Trouble Condition
AC:
When the Power supply detects the A.C. power input has fallen below an acceptable level the AC Power L.E.D. will fl ash at a
50% rate to indicate a trouble condition, the trouble relay will also activate during a trouble condition of this type and after a
programmed delay the Low AC relay will also activate. When the trouble condition has been restored the L.E.D. and trouble
relays will return to their normal state. (See notice.)
Low Battery:
When the Power supply detects the Battery is no longer functioning properly the Low Battery L.E.D. will fl ash at a 50% rate to
indicate a trouble condition, the trouble relay will also activate during a trouble condition of this type. When the trouble condition
has been restored the L.E.D. and trouble relay will return to their normal state. (See notice.)
If the trouble memory feature has been enabled the L.E.D. will
provide two brief pulses every second to indicate a trouble
condition has occurred but is now restored. This can be useful
when troubleshooting brief trouble conditions that come and
go over a period of time.