Salicru IS Series User's Manual, Installation And Start-Up page 28

6.6.1.- Output neutral regime.
• Equipment without Bypass line or with isolation transformer in this line. In both cases, from factory, the equipment
is supplied with the output neutral referred to earth through a cable bridge (PU) wired between the output Neutral
terminal and the ground, which at the same time is joined to the earth terminal. When an isolated neutral is
required (floating), it will be needed to remove the cable bridge, which is inserted between both terminals.
Depending on the equipment model, the earth terminal (X5) can be a terminal or stud (see figures 5 and 7).
6.7.- Communication with relays, connector or
terminal strip (X32).
• The communication with relays supplies digital
signals in the form 2 A 30 V DC or 0,6 A 125 V
AC. The communication allows for dialogue
between the unit and the outside world by means
of a male SUB-D9 connector, or exceptionally a
6 terminal strip (X32). In both cases, 2 or 3
variables are supplied, the most significant
depending on the version of the equipment, as
well as a «Shutdown» to allow the unit to be
turned off when we have a voltage between 5
and 12 V DC (5 mA) on the said input.
• The communications line is a very low voltage
safety circuit. To preserve the quality, it should be installed separately from other lines with dangerous voltages
(power distribution lines).
• On setting off an alarm, the following pins or terminals are supplied in the form of a closed contact:
SUB-D9
Pin 1 -
Pin 2 -
Pin 5 -
Pin 6 -
Pin 7 -
Pin 8 -
• The Bypass signal (Pin 6 / terminal 4) is only available in units with static Bypass.
6.8.- Communication interface RS-232 and RS-485, connector (X31).
• The INVERTER has a single serial communications channel through the SUB-D9 connector (X31), with two
optional otuputs, RS-232 and RS-485, either of which may be used, but not simultaneously. By default RS-485 is
delivered, unless otherwise indicated by the client.
• The communications line is a very low voltage safety circuit. To preserve the quality, it should be installed
separately from other lines with dangerous voltages (power distribution lines).
Terminals strip
Terminal 1 -
Terminal 2 -
Terminal 3 -
Terminal 4 -
Terminal 5 -
Terminal 6 -
1
6
Connector SUB-D9.
1
Terminal strip.
Fig. 2. Interface to relays, (X32).
Three steps
Terminal A1 -
Terminal A3 -
Terminal A5 -
Terminal B1 -
Terminal B3 -
Terminal B5 -
- 28 -
A B
5
6
4
2
9
1
3
5
Three steps.
6
Signal
Positive (+) Shutdown.
Negative (-) Shutdown.
Common.
Output from AC mains (Bypass).
Low battery votlage.
Inverter On.