User Instructions

www.pulsar.pl PSACH01246
3
1. Technical description.
1.1. General description.
The AC/AC PSU intended for supplying devices requiring voltage AC of 24V AC (U1= 24V AC/ U2= 27V
AC) and total capacity of 6A@24V AC. It features protections: short-circuit (SCP), overload (OLP), transformer
overheat (OHP). The PSU is housed in a ABS enclosure that features a microswitch indicating unwanted
opening of the front door (faceplate).
1.2. Block diagram.
Fig.1. Block diagram of the PSU.
1.3. Description of PSU components.
Tab.1. Elements of the power supply unit.
Element no.
[Fig. 2]
Description
[1]
Isolation transformer
[2]
TAMPER, tampering connector (NC)
[3]
AUX: U2-U1-0V secondary voltage connector, devices power supply (SEC)
[4]
F2 fuse in the secondary voltage circuit
[5]
F1 fuse in the power supply circuit (230V AC, PRI)
[6]
L-N connector 230V/AC, PE protection connector
Fig.2. The view of the PSU.