MGE UPS Systems EPS 7000 - Manual (Page 40)

PH OUT OF TOLERANCE !
This message indicates that there is an out of tolerance condition between the inverter and bypass AC input (mains
2) sources. Transfer of the load between the inverter and bypass AC input will result in an interruption of load power.
Q4S BYPASS SWITCH
OPEN !
This message indicates that the circuit breaker Q4S is open. Transfer of the load from the inverter to the bypass
source is not possible.
Q5N UPS OUTPUT ISOL.
SWITCH OPEN !
This message indicates that the optional UPS isolation circuit breaker Q5N is open. The load is not supplied unless
the maintenance bypass circuit breaker Q3BP is closed.
Q3BP MAINT. BYPASS
SWITCH CLOSED !
This message indicates that the optional maintenance bypass circuit breaker Q3BP is closed. The system is set to
maintenance bypass, and the load is supplied by the bypass AC input source (mains 2).
STATIC SWITCH O.L.
EMERGENCY OFF !
This message indicates that the static switch has shut down following an overload condition, disconnecting the load.
BATTERY CHARGING !
This message indicates that the battery is being recharged.
INDEPENDENT INVERTER
FREQUENCY !
This message indicates that the inverter is operating in free-running mode, and is no longer synchronous with the
bypass AC input source (mains 2). Inverter frequency is stable within 0.1 Hz, but transfer of the load to the bypass
AC input source is not possible without an interruption of power to the load.
NUMBER OF MODULES
READY INSUFFICIENT !
This message indicates that the load cannot be transferred from the bypass input source to the UPS modules
because not enough UPS modules have been started up.
UPS
TRANSFER LOCKOUT !
This message indicates that the load cannot be transferred from the inverter to the bypass AC input (mains 2) source
without interruption because the conditions for transfer without interruption are not met or because the inverter is
operating in free-running mode or in current limit, or because the UPS has been commanded not to transfer without
interruption, or because of an internal fault. See section 2.11 Forced Transfers.
Operation
EPS 7000 Shared Systems
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