Hochiki Europe (UK) Ltd – HE-PSU(4.0) Installation Manual
Page 2 of 10
2-3-0-997/ISS1/OCT07
CONTENTS
1. GENERAL........................................................................................................................2
2. POWER REQUIREMENTS .............................................................................................2
2.1 HE-PSU(4.0) Input/Output Electrical Ratings .............................................................2
2.2 Fuse Ratings ..............................................................................................................3
2.3 Batteries .....................................................................................................................3
3. INSTALLATION ...............................................................................................................3
3.1 Environmental Considerations....................................................................................3
3.2 Mounting ....................................................................................................................3
3.3 Connecting to the Input ..............................................................................................4
3.4 Connecting to the Outputs..........................................................................................4
3.4.1 Load Connections (Terminal Block).....................................................................4
3.4.2 Load Connections (Ribbon Cable).......................................................................4
3.4.3 Battery Connections ............................................................................................5
4. COMMISSIONING ...........................................................................................................6
5. MAINTENANCE...............................................................................................................6
6. MOUNTING .....................................................................................................................8
7. WIRING ...........................................................................................................................8
8. CABLE TERMINATION ...................................................................................................9
9. OPERATING INSTRUCTIONS ......................................................................................10
1. GENERAL
The HE-PSU(4.0) is a combined power supply and battery charger designed to be used for fire alarm control
and indicating equipment complying with EN54-2 and EN54-4.
2. POWER REQUIREMENTS
The HE-PSU(4.0) requires a mains power supply of 230V AC. The maximum input current is 2 Amps.
Mains frequency 50Hz.
2.1 HE-PSU(4.0) Input/Output Electrical Ratings
Input – 230V AC
Load output -
19V DC min (battery at minimum), 30 V DC max (mains on) max current 2.5 Amps + 1.5A
for battery charging.
Maximum ripple 800 millivolts
Battery charging output - 26.4 VDC (at 40°C) 28.9 V DC (at -5°C) 1.5 Amps.
Fault signals - switched negative open collector (with respect to load positive) current limited 100mA max.
Mains fail
Battery disconnected (Low battery shut off voltage - 19 V (+/- 1 volt))
Battery low (Low battery warning voltage - 21 V (+/- 1 volt))
Earth fault
Charger fault (high output to battery)
Fail safe (any one of the above)
These outputs are protected against short circuits.
