Cygnus User Manual
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v3.0 2011
Page 17
6.
If a third Cygnus is being used, connect another data cable between D2 (Fig. 1, D1) of Cygnus 2 and D1 (Fig. 1, D2)
of Cygnus 3 by removing the corresponding protec ve covers and screwing in the retaining rings.
7.
Run a 16A CEEform extension cable from the AC output (Fig. 1, E2) of each Cygnus into the corresponding num-‐
bered inlet of the parallel junc on box.
8.
Run a 32A cable from output connector of the junc on box to your designated power distribu on unit or directly
to your consumer(s).
9.
Switch on the RCDs and MCBs (Fig. 1, B1 & B2) on all units.
10.
Turn on Cygnus 1 using the Power On/Off Switch (Fig. 1, C4). You will hear a long ‘beep’ and the panel backlight
will illuminate. Cygnus 1 should be le in Standby Mode at this point.
11.
Turn on the Power On/Off Switch (Fig. 1, C4) on Cygnus 2 and if used, Cygnus 3 so that all 3 are in Standby
Mode.
12.
On the RCC
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03 (Fig. 1, C2) of Cygnus 1. Press Up, then Down to access the Parallel display.
13.
Turn on Cygnus 1 using its RCC
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03 (Fig. 1, C2). All connected units should turn on simultaneously.
14.
Ensure all junc on box red indicators are illuminated. This shows that all units are on and opera ng in parallel
mode. Check that all the RCDs and MCBs (Fig. 1, B1 & B2) are s ll in the ‘On’ posi on and none of them have
tripped out.
4.3 Connec ng in Series
1.
Three units must be used.
2.
To check whether the units are configured correctly for three phase opera on, check the RCC
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03 Cygnus number
(Fig. 4, F2). The first unit should display L1, the second L2 and the third L3.
Do not a empt to connect the units
in series if this is not the case.
3.
Once the unit numbers have been determined, posi on the three units with L1 on the le , L2 in the centre and
L3 on the right.
4.
Turn off the power on all units using the Power On/Off switch (Fig. 1, C4).
5.
Cygnus 1 and Cygnus 2 should be set as Open (Fig. 1, C3: rotate switch an
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clockwise) and Cygnus 3 as Terminat-‐
ed (Fig. 1, C3: rotate switch clockwise).
6.
Star ng with unit L1, connect the first data interlink cable to D2 (Fig. 1, D2) on the control panel. Ensure that as
the connectors are plugged in, the connector’s retaining ring is screwed clockwise in to the receptacle on the
panel connector. This ensures that water integrity is maintained.
7.
Connect the other end of this cable to D1 (Fig. 1, D1) on the control panel of unit L2.
8.
Plug a second Data cable into D2 (Fig. 1, D2) on the control panel of the unit L2.
9.
Connect the other end of this cable to D1 (Fig. 1, D1) on the control panel of unit L3.
10.
Run a 16A cable from the AC output (Fig. 1, E2) of each Cygnus into the corresponding numbered input of the
series junc on box.
11.
Run a 32A 3 phase (3P+N+E) CEEform cable from the output connector of the junc on box to your designated
power distribu on unit or consumer(s).
12.
Check that all the data cable connec ons are plugged in correctly.
13.
Switch on the RCDs and MCBs (Fig. 1, B1 & B2) on all units.
14.
Double check that all connec ons are secure, then turn on unit 1 using the Power On/Off Switch (Fig. 1, C4). A
long ‘beep’ will be audible and the RCC
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03 backlight will illuminate. Unit 1 should be le in standby mode at this
point.
15.
Turn on the Power On/Off Switch (Fig. 1, C4) on Cygnus 2 and then Cygnus 3 so that all three are in standby
mode.
