Fusion Installation & Commissioning Manual Approved document No UI-FBU-01 issue 3.0
85
TECHNICAL SPECIFICATION (continued)
Power Supply Specification.
Mains supply
10%/-15% 50Hz max cur-
rent 1A
Note:- (FBUS) = Std cabinet
(FBUL) = large cabinet
Mains supply fuse
(FBUS) 4Amp (F4A 250V)
(FBUL) 5Amp (F5A 250V)
Not accessible for servicing. Internal to
switch mode power unit
Internal power supply
rating
(FBUS) 3 Amps total including bat-
tery charging
(max load Imax.a = 1.281A)
Output current limited to 3A @230vac
Imax.b not specified
(FBUL) 5Amps total including battery
charge
(max load Imax.a = 1.580A)
Output current limited to 5A @ 230vac
Imax.b not specified
Maximum ripple
250 millivolts.
Supply and charger fault monitored
Min / Max battery size
and type
(FBUS) 2 x 3.2Ahr 12volt VRLA / 2x
12 Ahr 12volt VRLA. Use Yuasa NP
range batteries
(FBUL) 2 x 7 Ahr 12volt VRLA / 2x 17 Ahr
12volt VRLA .Use Yuasa NP range bat-
teries
Battery charging voltage
27.3 vdc nominal at 20 deg C
Temperature compensated
Battery charging output
current
(FBUS) 3A PSU 1.3A max
Current limited
(FBUL) 5A PSU 1.85A max
Current limited
Battery High impedance
fault (Batt Hi Z)
Resistance > 0.8 Ohms
1 hour reporting time
Max Current drawn from
batteries
(FBUS) 3Amps with main power
source disconnected. Battery fuse 5A
LBC 20mm. PSU limits battery cur-
rent draw to 3A from outputs
(FBUL ) 5Amps with main power source
disconnected. Battery fuse 7.5 A auto .
PSU limits battery current draw to 5A
from outputs)
Earth fault monitoring
< 100K Ohms to 28vdc supply rail or
0vdc supply rail
Monitored Via earth terminal input to PSU
PCB.
36vdc input
(FBUS) 36vdc +/- 2v input from
switch mode unit 100w max current
3.3A @36v Fused T3.15A L250v
20mm
(FBUL) 36vdc +/- 2v input from switch
mode unit 150w
max current 4.73A @36v
Fused T5A L250v 20mm
28v dc OP1 & OP2
(FBUS) Monitored supply outputs,
Short circuit & over-current protec-
tion 3.6A shared between outputs.
Min Load current 20mA per OP
(FBUL) Monitored supply output, Short
circuit & over-current protection 3.6A
shared between outputs. Min Load cur-
rent 20mA per OP
PSD
Power supply data output, serial data
pulses
Open collector Current limited via 2k7
Ohm. Receiver pull up to 5vdc
PSC
Power supply clock output, serial
clock pulses
Open collector Current limited via 2k7
Ohm. Receiver pull up to 5vdc
12vdc output
12vdc supply output, 100mA
Limit 100mA thermal fuse
Fault relay C/NC/NO
Maintained fault relay contacts, Un-
protected
Switching current Max 2A @ 30vdc
REM FLT
Internal connector for display PCB.
28vdc Open collector
Unprotected not for external use.
Minimum current
drawn by panel
(examples)
FBUS64-4-0
I min = 150mA
FBUL64-8-7
I min = 297mA
