AWZ637 v.1.0 Enclosure with power supply unit dedicated to Dahua’s Access Control EN Edition: 1 from 15.05.
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www.pulsar.pl AWZ637 1.2 Block diagram (fig.1) Fig.1. The block diagram of the PSU. 1.3 Description of PSU components and connectors (tab.1, fig.2). Element no.
www.pulsar.pl Element [Fig. 2] [1] [2] [3] [4] [5] [6] [7] AWZ637 Description PSU module Fitting battery 17 Ah/12 V (SLA) TAMPER, contact, sabotage protection (NC) L-N 230 V power supply connector, protection connector Power cord for the controller, ended with a DC 2.1 / 5.5 plug TH35 rail for mounting the controller (length 185 mm) Fuse module LB4 Tab.2. Output terminals of the PSU. Fig.2. The view of the PSU. 1.4 Specifications: - electrical parameters (tab.3) - mechanical parameters (tab.
www.pulsar.pl AWZ637 Output current tAMB=40 °C 4,9 A + 1 A battery charge - refer to chart 1 3,9 A + 2 A battery charge - refer to chart 1 12÷14 V DC 120 mV p-p max. 60 mA 1 A or 2 A max.
www.pulsar.pl AWZ637 Notes The enclosure does not touch the assembly surface so that cables can be led. Convectional cooling. Operation safety (tab.
www.pulsar.pl AWZ637 2.2 Installation procedure. Before installation, cut off the voltage in the 230 V power-supply circuit. To switch power off, use an external switch, in which the distance between the contacts of all poles in the disconnection state is not less than 3 mm. It is required to install an installation switch with a nominal current of 6 A in the power supply circuits outside the power supply unit. 1. Mount the PSU in a selected location and connect the wires. 2.
www.pulsar.pl AWZ637 3.2 Technical outputs The PSU has indication outputs: EPS - absence of AC supply output: - OC type output that indicates AC power loss. Under normal status, with 230 V supply, the output is connected to ground (L level – 0V). In case of power loss, the PSU will switch the output into high impedance state hiZ after approx. 10s. - relay output indicating the absence of AC supply. In case of power loss, the PSU module will switch the relay contacts after approx.10 seconds.
www.pulsar.pl AWZ637 4.3 Maintenance. Any and all maintenance operations may be performed following the disconnection of the PSU from the power supply network. The PSU does not require performing any specific maintenance measures, however, in case of significant dust rate, its interior is recommended to be cleaned with compressed air. In case of fuse replacement, use a replacement of the same parameters.
