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DC/AC Inverter
PWS series
User Manual
Page 17 (24)
3.6 Rear-side switch S2 (remote switch-on function)
The remote switch-on function is designed to switch on/off all paralleled PWS-F inverters simultane-
ously.
For this function the DC input voltage monitoring function of the static bypass switch UNB is used. If
the UNB detects "DC input voltage is okay" the signal for remote switch-on is sent via the wire con-
nected to pin 9 (pin 12 respectively) of the PWS connector.
In reverse: If the DC input voltage is not okay, the remote switch-off signal is sent.
With switch S2 (see figure 9)) fitted on the rear side of the PWS-F it is possible to enable/disable the
remote switch-on function depending on the intended use.
Figure 9) - Detail: Rear side switch S2
Switch 2 position "1"= remote switch-on function disabled. In this position, the module can be switched
ON and OFF with the front side switch S1.
Switch 2 position "O"= remote switch-on function enabled. In this position, the module can be remotely
switched ON and OFF by the static bypass switch UNB.
Table "Function of switch 1 and switch 2":
Switch position of
S1
S2
Function
0
1
Module manually switched OFF, remote switch-on function disabled.
1
1
Module switched ON, remote switch-on function disabled (stand-alone mode)
0
Module manually switched OFF, remote switch-on function enabled.
*
0
1
Module switched ON, remote switch-on function enabled.
*
0
*
REMARK: When the PWS is used as stand alone module, it can not be switched ON with S1 if the
position of S2 is "0".
For a faultless remote switch on function it is important that the wiring between the inverters and
static bypass switch (remote switch on wire) is correct.
INFO: The PWS-F series is serially fitted with the rear side switch since August 2008 (date of
manufacture).
ELTEK VALERE INDUSTRIAL ©2008
UM_PWS_E_R1.2
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