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Installation Manual for
D1551 & D1553, 12V Switched
Mode Power Supplies
Ideal for Access Control
Systems
Dycon Power Solutions Ltd
Tel: +44 (0)1443 471 900
Unit A, Cwm Cynon Business Park – Mountain Ash – CF45 4ER - UK
www.dyconpower.com
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sales@dyconpower.com
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Summary of Contents for Dycon D1551
- Page 1 Installation Manual for D1551 & D1553, 12V Switched Mode Power Supplies Ideal for Access Control Systems Dycon Power Solutions Ltd Tel: +44 (0)1443 471 900 Unit A, Cwm Cynon Business Park – Mountain Ash – CF45 4ER - UK www.dyconpower.com...
- Page 2 Overview The Dycon D1551 and D1551 are 1A and 3A 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.
- Page 3 Dimensions for D1551 Connection layout for D1553 D1551_D1553 installation manual 27042022 V2...
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Page 4: Installation
Dimensions for D1553 Installation Mount the metal enclosure onto the wall. Connect the Live, Earth and Neutral terminals to an un-switched fused spur. Connect the On/Off switching control to the control unit. Select the mode of operation using the jumper (see below). Connect the Normally Closed relay output to the monitoring equipment used to report and signal equipment faults. -
Page 5: Led Indications
The PSU power rail is continuously monitored for over-voltage and in the event of a high voltage condition, the output will be automatically switched off and a fault signal LED Indications The status of the PSU is displayed by three LEDs, see below for their meaning: KEY: ●... - Page 6 PSU Fault The normally closed (NC) fault opto-relay will open with the following fault conditions: Thermal shutdown due to overload Switch mode low-voltage output power fault Switch mode over-voltage output power fault 12V output either shorted or overloaded Battery disconnected fault Low battery voltage fault The relay contacts are voltage-free and floating.
- Page 7 Depends on housing 140 x 96 x 42 0.25 Dycon Accessories, suitable for use with both D1551 & D1553, which can be specified to be factory-fitted into the PSU housing D15X8-500mA 8-way output splitter (8 x 500mA glass fuses) 49 x 108 x 17 0.70...
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