MGE UPS Systems EPS 7000 - Manual (Page 21)

Introduction page 1 — 11
Users Manual
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Load not protected (item 2 ) This red LED turns on when any of these conditions occur:
◗ The load is no longer protected following an inverter shutdown,
or the opening of the isolation circuit breaker (Q5N).
◗ The battery circuit breaker QF1 is open, making battery power
unavailable.
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Operating problem (item 3) This orange LED turns on when an operating problem exists, such as fan
failure; static switch power supply fault; battery temperature fault;
overload fault; or bypass AC input (mains 2) out of tolerance. The UPS
continues to protect the attached load.
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Battery (item 4) This orange LED turns on to indicate that the attached load is
being partially or completely supplied by the battery. When the main AC
input (mains 1) fails or is outside tolerance, stored battery energy is
supplied to the inverter, which in turn supplies the load.
Í Load protected (item 5) This green LED indicates that the attached load is supplied by
the inverter and protected by the battery. During normal operation, this
LED is the only one that is on.
Inverter on (item 6) This green pushbutton is used to start the inverter. When it is pushed, the
green “load protected” LED flashes for three seconds, indicating that the start
command has been received. When the inverter has synchronized with the bypass
AC input (mains 2) source, the static switch transfers the load to the inverter output.
If the inverter cannot synchronize to the bypass AC input (mains 2) source, the load
must be forced to transfer using the hidden panel (see section 2.11, Forced
Transfers).
Inverter off (item 7) This gray pushbutton is used to stop the inverter. When it is pressed for 3
seconds, the inverter stops and the load is transferred to the bypass AC input (mains
2) source. If the uninterrupted transfer conditions are not met, this pushbutton has
no effect and the inverter can be stopped only from the hidden panel (see Section
2.11, Forced Transfers).
(UPS Modules Only)
(UPS Modules Only)
(UPS Modules Only)