System information (continued)
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
input voltage is outside tolerances, load transfer from inverter to Mains 2 will include an interruption of 0.8 second.
49F:
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
MGETM GalaxyTM 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.
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