D1555_D1558 installation manual 29042022 V5
2
Overview
The Dycon D1555 and D1558 are 5A and 8A switched mode power supplies with an opto-relay output for
signalling the status of the unit with PCB-mounted, LED status indicators. Both units provide a nominal 12V
when powered from a 230V AC supply with battery backup.
The power supplies have the following features:
-
ON/OFF power switching control input with pull-up, compatible with voltage-free contacts
-
Jumper for selecting normally OPEN or normally CLOSED for switched output operation
-
ON (OK) LED display indicating normal operation and ON/OFF switching status
-
Battery LED indicating standby operation and ON/OFF output switched status
-
Fault LED and separate fault opto-relay output for comprehensive fault monitoring
-
Battery connection monitoring
-
Battery deep discharge protection
-
Inductive and capacitive load switching surge protection and snubbing
-
Electronic overload protection with automatic reset
-
Highly efficient power conversion
–
better than 84% at full load
-
Low voltage drop when in standby mode
The ON/OFF switched output
The ON/OFF switched output is designed for highly inductive loads such as access control door strikes and
locks and is protected from high voltage back-EMF spikes.
Battery types
All standard VRLA (lead acid) batteries are supported. The standard battery connector for 2.1Ah & 7/8Ah
batteries is a FASTON 4.75. For 17Ah & 24Ah batteries please specify M5 connectors when ordering.
Connection layout for both D1555 and D1558
Scale
1:1.5mm
Description: D1555
General Tolerances:
+-0.5mm
Projection:
Date: 25/03/2021
Material: PCB
Version No:4
LED's
Mains Connection
Live
Earth
Neutral
BAT
PROG
INV
PSU FLT
0V
ON/OFF
-/+ 12V
M3 x 6 mm panhead
recommended with
10 mm high
hex stand off
