Samlex Europe Pure Sinewave PST-300S-12E Mode D'emploi page 43

seCtIOn 8 | SECTION 10 |
Terminal Block
To reset, switch OFF the unit using the 3-Postion Rocker Swith "ON/Off/EXT. Switch", wait
(10, Fig 6.1a)
for 3 minutes and then switch ON the unit again. Before switching ON, determine and
remove the cause of overloading.
SHORT CIRCUIT CONDITION: Short circuit condition will be detected when the AC
output voltage drops to 80VAC or lower over a period of around 1 to 1.5 sec. The AC
output voltage will be shut down thereafter.
R ed LED marked "OVERLOAD" (3, Fig 6.1a) will turn ON, and buzzer alarm will sound.
The Green LED marked "POWER" (2, Fig 6.1a) will continue to be lighted. The unit will
Relay Contact
be latched in this shut down condition and will require manual reset. To reset, switch
or
OFF the unit using the 2-Postion Rocker Switch "ON/Off?EXT. Switch", wait for 3 minutes
Toggle Switch
and then switch ON the unit again. Before switching ON, determine and remove the cause
of overloading.
note: Wiring Size: AWG #22
10.2 WARNING ALARM - LOW DC INPUT VOLTAGE
Fig 8.2(a) − 2-Wire
The voltage at the DC input terminals will be lower than the voltage at the battery
ON/OFF control using
terminals due to voltage drop in the battery wires and connectors. The drop in the
switch/relay contact
voltage at the DC input terminals of the inverter could be due to lower battery voltage
or due to abnormally high drop in the battery wires if the wires are not thick enough
(Please see page 30 "Connection From Batteries To the DC Input Side Sizing of Cables
Fig. 8.2: ON/OFF Control from Remote Location using External 2-Wire or 1-Wire Control
and Fuses"). If the voltage at the DC input terminals falls below 10.7V ± 0.1V for 12V
versions or 21.4V ± 0.2V for 24V versions, a buzzer alarm will be sounded. The Green
LED marked "POWER" (2, Fig 6.1a) and indication light on AC output voltage would
seCtIOn 9 |
continue to be available. This warning buzzer alarm indicates that the battery is
running low and that the inverter will be shut down after sometime if the voltage at
the inverter terminals further drops to 10V ± 0.1V for 12V versions or 20V ± 0.2 V for
9.1 SWitcHinG tHe inVeRteR on/oFF
24V versions.
Before switching on the inverter, check that all the AC loads have been switched off. The
3-Position Rocker Switch marked oN/off/EXT. Switch (1, fig 6.1a) on the front panel of the
10.3 LOW DC INPUT VOLTAGE SHUT DOWN
inverter is used to switch oN and switch off the inverter. This switch operates a low power
If the voltage at the DC input terminals falls below 10V ± 0.1V for 12V versions or 20V ±
control circuitry, which in turn controls all the high power circuitry.
0.2V for 24V versions, the AC output is shut down. Buzzer alarm is sounded. The Green
The unit can also be switched oN/off remotely as follows:
LED marked "POWER" (2, Fig 6.1a) will remain lighted. The Green indicati on light on
• Through optional Remote Control Model RC-300 connected to Modular Jack RJ-50
the Gf CI will be OFF.
(9, fig 6.1a). Read optional Remote Control Manual for RC-300 for details.
• Using 2-wire or 1-wire External Switching Control. See details under heading "oN/off Con-
The unit will reset automatically when the DC input voltage rises > 11.5V ± 0.3V for 12V
trol from Remote location using 2-Wire or 1-Wire External oN/off Control" on page 38.
versions and > 23V ± 0.5V for 24V versions
!
cAUtion!
10.4 HIGH DC INPUT VOLTAGE SHUTDOWN
Please note that the oN/off switch is not switching the high power battery input
If the voltage at the DC input terminals exceeds 16.5V for 12V versions or 33V for
circuit. Parts of the DC side circuit will still be alive even when the switch is in the
24V versions, the AC output voltage will be shut down temporarily. Buzzer alarm will be
off position. Hence, disconnect the DC and AC sides before working on any circuits
sounded. The Green LED marked "POWER
connected to the inverter.
will be reset automatically when the voltage drops down to < 16.5V for 12V versions
and to < 33V for 24V versions.
When the inverter is switched oN, the Green LED marked "PoWER" (2, fig 6.1a) will be
lighted. This LED indicates that the input section of the inverter is operating normally. Under
46 | SAMLEX AMERICA INC.
Installation Protections
Terminal Block
(10, Fig 6.1a)
+
1A Fuse
+ –
DC Power
Source
(10-33VDC)
Fig 8.2(b) − 2-Wire
ON/OFF control using
switched DC voltage
Operation
–
Relay Contact
or
Toggle Switch
+12V/24V battery voltage
(10-33V) from the battery
supplying DC input to PST-3000
Fig 8.2(c) − 1-Wire ON/OF
control using switched
DC voltage from battery
supplying the inverter
" (2, Fig 6.1a) will rema
Terminal Block
(10, Fig 6.1a)
Relay Contact
or
Toggle Switch
1A Fuse
+
n lighted. The unit i
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