Samlex Europe Pure Sinewave PST-300S-12E Mode D'emploi page 45

SECTION 9 | SECTION 11 |
a) When NOT using external 1-Wire or 2-Wire ON/OFF Control: By switching OFF
ISSUE
the 3-Position Rocker Switch (1,
b) When using external 1-Wire or 2-Wire ON/OFF Control: By Switching OFF the
When switched ON, the
inverter by (i) opening the switch or the relay contact in 2-Wire ON/OFF Control
Green LED marked "POWER"
(fig 8.2a) or (ii) opening the switch or relay contact in 2-Wire ON/OFF Control using
(2, Fig 6.1a) does not light.
Buzzer is OFF. There is no AC
switched DC voltage (fig 8.2b) or (iii) opening the switch or relay contact in 1-Wire
output voltage.
o N/off Control using switched DC voltage from the battery supplying the inverter.
SECTION 10 |
10. PROTECTIONS
The inverter has been provided with protections detailed below:
10.1 POWER SURGE / OVERLOAD / SHORT CIRCUIT SHUT DOWN
Low AC output voltage
(No buzzer alarm).
i
INFO
Please refer to
Power Factor (PF) at Section 2.1. In the explanation below, the values of Power
are expressed in Apparent Power in VA. Corresponding Active Power (Watts, W)
will depend upon the type of load (Resistive or Reactive) and its Power Factor
(Power Factor may range from 1 to 0.5). Please note the following:
Buzzer alarm is sounded when
load is switched ON. Voltage
• Active Power (Watts) = Apparent Power (VA) x Power Factor (PF).
at DC input terminals reads
• For resistive type of loads, the Power Factor = 1 and hence, Apparent
between 10 to 10.7V for 12V
Power (VA) = Active Power (Watts, W)
versions and between 20 to
21.4V for 24V versions. The
• For reactive types of loads, the Power Factor will be < 1 (up to 0.5) and hence,
Green LED marked "POWER"
the Active Power (Watts, W) will be less than the Apparent Power (VA)
(2, Fig 6.1a) is lighted. Indica-
tion light on. AC output
The AC output voltage will shut down due to overload and short circuit conditions as follows:
voltage is available.
POWER SURGE CONDITION: When the AC output current tries to exceed around 200%
of the rated value, output current limiting is carried out instantly resulting in drop in
Buzzer alarm is sounded
the AC output voltage (the drop is proportional to the load impedance). Surge Power of
when load is switched ON.
200% will, thus, be provided for < 8 ms every half cycle. If this situation continues for 2
Voltage at the DC input
terminals reads below 10V for
to 2.5 sec Overload Condition is activated.
12V versions and below 20V
for 24V versions. The Green
OVERLOAD CONDITION: If there is a continuous overload of 110% to 115% for 2 to 3
LED marked "POWER" (2, Fig
sec, the output voltage will be shut down. Red LED marked "OVERLOAD" (3,
6.1a) is lighted. GREEN indica-
will turn ON, the Green indication light on the Gf CI outlet will be OFF and buzzer alarm
tion light on. There is no AC
will sound. The Green LED marked "POWER" (2, Fig 6.1a) will continue to be lighted.
output.
The unit will be latched in this shut down condition and will require manual reset.
48 | SAMLEX AMERICA INC.
Operation Troubleshooting Guide
POSSIBLE CAUSE
There is no voltage at the
DC input terminals
Protections
Polarity of the DC input
voltage has been reversed
that has blown the exter-
nal / internal DC side fuses
(Note: Reverse polarity
may cause permanent
damage. Damage caused
due to reverse polarity is
not covered by warranty)
Low DC input voltage at
the inverter terminals and
the load is close to the
overload limit of 110%
(3300W).
of Active Power (Watts), Apparent Power (VA) and
DC input voltage is less
than 10.7V for 12V
versions and less than
21.4V for 24V versions.
Shut-down due to low
DC input voltage - Less
than 10V for 12V versions
and less than 20V for 24V
versions.
ig 6.1a) to center position marked "O" / "OFF" f
• Check the continuity of the battery
input circuit.
• Check that the internal/external battery
fuses are intact. Replace if blown.
• Check that all connections in the battery
input circuit are tight.
• Check external and internal fuses. Internal
fuses may be soldered and may not be easily
replaceable. Replace fuses. If unit does not
work, call Technical Support for repair.
• Check that the battery is fully charged.
Recharge, if low.
• Check that the battery cables are thick
enough to carry the required current over
the required length. Use thicker cables, if
required.
• Tighten connections of battery input circuit.
• Reduce load to below 3000W.
• Check that the battery is fully charged.
Recharge, if low.
• Check that the battery cables are thick
enough to carry the required current over
the required length. Use thicker cables, if
required.
• Tighten connections of the battery input
circuit.
• Check that the battery is fully charged.
Recharge, if low.
• Check that the battery cables are thick
enough to carry the required current over
the required length. Use thicker cables, if
required.
• Tighten connections of the battery input
circuit.
• The AC output voltage will switch ON au-
tomatically when the DC input voltage rises
to 11.5V ± 0.3V for 12V version and 23V
± 0.5V for 24V version.
REMEDY
ig 6.1a)
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