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Word address: 49
494: contactor K2S (0=open/
1=closed)
Indicates the position of contactor
K2S . Contactor K2S is connected
in parallel with the static switch on
the Mains 2 line on certain high
output units. It is installed in static-
switch cubicles with power ratings
over 400 kVA.
496: Mains 2 input switch
(0=open/1=closed)
Switch "Q4S" is located on the
Mains 2 phases at the input of the
static switch (on the bypass line).
The switch is normally closed.
497: maintenance bypass switch
(0=open/1=closed)
Switch "Q3BP" bypasses the static
switch and connects Mains 2
directly to the load. This switch is
normally open. When closed (with
"Q4S" and "Q5N" open), the load
can continue to be powered while
the UPS is isolated for servicing.
498: inverter output switch
(0=open/1=closed)
Switch "Q5N" is located at the
output of the inverter and is used to
disconnect the load from the
inverter (or from the output busbars
when several units are connected
in parallel).
This switch is normally closed.
499: static switch status
(0=open/1=closed)
The static switch on Mains 2 is
normally open (inverter powers the
load). The load is transferred to
Mains 2 by closing the static switch
when the inverters are no longer
capable of delivering the required
power (overload, end of backup
time or internal error).
49C: Mains 2 frequency
(0=normal/1=outside tolerances)
When the frequency of Mains 2 is
outside tolerances, load transfer
from inverter to Mains 2 will include
an interruption of 0.8 s or will not
take place.
49D: Mains 2 voltage (0=normal/
1=outside tolerances)
When the phase-to-phase Mains 2
input voltage is outside tolerances,
load transfer from inverter to Mains
2 will include an interruption of 0.8
second.
49F: free-running frequency
request (0=not activated/
1=activated)
Indicates that the inverter received
an external command to
desynchronize its output frequency
from the frequency of Mains 2.
Word address: 4A
4A0: static bypass (Mains 2)
overload (0=no/1=overload)
The load, supplied via the static
bypass line (Mains 2), is drawing
more than the rated current but
continues to be supplied by Mains 2.
4A1: static bypass (Mains 2)
thermal overload (0=no/
1=overload)
Informs the user that the load is no
longer powered by Mains 2 due to
an extended overload condition.
4A2: inverter thermal overload
(0=no/1=overload)
Informs the user that the load is
overloaded by a factor between 1
and 1.6 In: the inverter stops
operating.
4A3: auxiliary cubicle fault (0=no
fault / 1=fault)
Indicates to the user that the fault
auxiliary contact connected to the
cubicle has been activated. This
information is available only on
U.S. versions of the
MGE
TM
Galaxy
TM
6000 UPS.
4A4: transfer to Mains 2 with
interrupt prohibited (0=not
activated/1=activated)
An auxiliary command prohibits
transfer to Mains 2 with power
interruption.
4A5: transfer lockout (0=not
activated/1=activated)
The inverter received an auxiliary
command prohibiting transfer to
Mains 2. The load is totally
dependent on inverter power. If the
inverter stops (internal fault), the
load will no longer receive power.
4AF: inverter quantity
(0=insufficient/1=sufficient)
This only concerns systems with
parallel connected inverters and a
static switch cubicle. It informs the
user that the number of inverters to
be connected to the load is
insufficient to supply the necessary
power. Additional inverter(s) must
be turned on so that the inverters
can start supplying the power to the
load. If this is not the case, Mains 2
continues to supply the power.
Word address: 4C
(summary of operating
information)
4C0: acquisition fault (0=no fault
/ 1=fault)
Indicates an acquisition fault for the
internal analogue or logic values of
the "GTCZ" or "GT2Z"
communication board.
4C1: battery backup time (0=no
fault/1=backup time end)
The computed "remaining backup
time" is less than the amount
configured in the unit.
4C2: end of battery life (0=no
fault / 1=end of battery life)
Indicates that the battery has
reached its maximum service life
and should be replaced.
4C4: system normal, load
protected (0=not normal/
1=normal)
Indicates that the inverter powers
the load and that the full battery
backup time is available if Mains 1
fail. The unit is operating normally.
Note: for parallel connected inverter
cubicles, this only refers to the
output power supplied by that
specific unit. The load may be
unprotected if more than one inverter
is required to supply the load power.
All required inverters in the system
or the static switch cubicle if it exists
must therefore be checked.
4C5: system downgraded due to
malfunction (0=not downgraded/
1=downgraded)
Indicates a malfunction or
environment fault; nevertheless the
inverter can still power the load.
System information (continued)