APC 6739380EN/JC User Manual
Page 28
- 6739380EN/JC
Environment information
Standard information Media Contacts 9
Remote transmission board
◗
battery circuit breaker QF1 closed:
a NO contact inhibits inverter start-up
when the breaker is open;
when the breaker is open;
◗
battery temperature: an optional
PC-board may be connected to the
remote transmission board. It supplies
information on the battery temperature,
thus enabling the RC to regulate the
battery voltage.
remote transmission board. It supplies
information on the battery temperature,
thus enabling the RC to regulate the
battery voltage.
Note:
The Static Switch Cubicle does not
receive any of the above signals.
The Static Switch Cubicle does not
receive any of the above signals.
Signal reception
The signals should be provided by volt-
free contacts.
free contacts.
◗
emergency shutdown. An NC
contact causes:
◗◗
rapid shutdown of the inverter and
the RC,
◗◗
opening of battery circuit breaker
QF1,
◗◗
transfer of the load to Mains 2
(generally without interruption in the
supply of power);
supply of power);
◗
battery room ventilation fault:
a NO contact causes the shutdown of
the RC;
the RC;
◗
"load on battery" signal (2 volt-free
changeover contacts) indicating that
the inverter is supplied by the battery in
the following cases:
the inverter is supplied by the battery in
the following cases:
◗◗
Mains 1 outage or voltage drop,
◗◗
RC shutdown,
◗◗
RC current limiting;
This signal, which may be used to
initiate process saving and shutdown
procedures, is time-delayed by 30
seconds to avoid unnecessary
operations following micro-breaks;
initiate process saving and shutdown
procedures, is time-delayed by 30
seconds to avoid unnecessary
operations following micro-breaks;
◗
"maintenance position" signal
(2 volt-free changeover contacts)
indicating that;
indicating that;
◗◗
maintenance bypass switch Q3BP is
closed,
◗◗
Mains 2 input switch Q4S is open,
◗◗
inverter output switch Q5N is open,
◗◗
battery circuit breaker QF1 is open;
◗
signal to open battery circuit
breaker(s) QF1 in the event the
"emergency shutdown" button being
pressed or to avoid an excessive
battery discharge (more than 3 rated
time).
"emergency shutdown" button being
pressed or to avoid an excessive
battery discharge (more than 3 rated
time).
Note:
◗
the maximum breaking capacity of
the changeover contacts is 5A at 250V;
◗
information on the battery is not
supplied to frequency converters
without a battery or to the Static Switch
Cubicle;
without a battery or to the Static Switch
Cubicle;
◗
in systems with a Static Switch
Cubicle, the "load on inverter" and
"maintenance position" signals must be
directed to the Static Switch Cubicle.
"maintenance position" signals must be
directed to the Static Switch Cubicle.
Signal transmission
◗
an auxiliary 24V power supply,
isolated and backed up, is used to
supply:
supply:
◗◗
the undervoltage coil release for the
battery circuit breaker(s) QF1,
◗◗
an optional board that measures the
temperature in the battery room;
◗
"general alarm" information
(2 volt-free changeover contacts) which
includes:
includes:
◗◗
internal faults,
◗◗
information on temperatures outside
tolerances in the battery room
(optional),
(optional),
◗◗
overload information (I > In),
◗◗
static switch ventilation and power-
supply faults;
◗
"low battery shutdown" warning
signal (2 volt-free changeover
contacts) indicating that battery time is
about to run out. The warning threshold
may be personalized;
contacts) indicating that battery time is
about to run out. The warning threshold
may be personalized;
◗
"load on inverter" signal (2 volt-
free changeover contacts) indicating
that the load is supplied by the inverter.
In single-unit UPS systems, one volt-
free changeover contact may be used
to indicate that the load is supplied by
Mains 2;
that the load is supplied by the inverter.
In single-unit UPS systems, one volt-
free changeover contact may be used
to indicate that the load is supplied by
Mains 2;
Terminals XR1, XR2, XR3 and XR4 on
the remote transmission board of each
type of unit can be used for the input of
data from the operating environment
and for the transmission of signals on
the operational status of the device
(see figures 18, 19, 20 and 22 for the
position of the board).
the remote transmission board of each
type of unit can be used for the input of
data from the operating environment
and for the transmission of signals on
the operational status of the device
(see figures 18, 19, 20 and 22 for the
position of the board).
XR1
XR2
XR3
XR4