OPERATION
EN / Mass GI / June 2009
9
5 OPERATION
The Mass GI can be activated by switching the main
switch (figure 1, ref. 1) to the “ON” position. When no
error is present, the green ON LED illuminates after
this. The Mass GI will then generate an AC output
voltage. Move the switch to the Standby position to
switch off the Mass GI. In standby the Mass GI
remains connected to the AC mains!
5.1
Resetting the Mass GI
When the Mass GI is in failure mode it can be reset
in two ways:
1.
By switching it Off and On again using the
main switch (figure 1 ref. 1).
2.
By using the MasterBus function Restart
(section 7.1).
5.2
Maintenance
No specific maintenance is required. If necessary,
use a soft clean cloth to clean the Mass GI. Never
use any liquids, acids and/or scourers.
For reliable and optimum function examine your
electrical installation on a regular base, at least once
a year. Defects such as loose connections, burnt
wiring etc. must be corrected immediately.
5.3
LED indicators
The operation of the Mass GI is displayed by means
of front panel LEDs. See the table below for
explanation.
On
on
stand by
100%
75%
50%
25%
5%
5%
High temp
uvp / ovp
Short circuit
ISOLATION TRANSFORMER
Illuminating LED
Status
Meaning
a
On
Mass GI is switched on.
a (blinking)
Waiting
Mass GI waits for parallel units to switch on.
a+b
Normal
Current conversion: 5% of nominal current.
a+b+c
Normal
Current conversion: 25% of nominal current.
a+b+c+d
Normal
Current conversion: 50% of nominal current.
a+b+c+d+e
Normal
Current conversion: 75% of nominal current.
a+b+c+d+e
+f (yellow)
Normal
Current conversion: 100% of nominal current.
a+b+c+d+e
+f (red)
Overload
Current conversion: >100% of nominal current,
Mass GI will be shut off soon due to overload.
f (red)
Failure mode Mass GI has been shut off due to overload.
g
Failure mode Mass GI has been shut off due to too low or
too high input voltage.
g (blinking)
Failure mode Mass GI has been shut off due to a frequency
error on the input.
h
Failure mode Mass GI has been shut off due to too high
temperature.
i
Failure mode Mass GI has been shut off due to short circuit.
a
b
c
d
e
f
g
h
Table: Front LEDs with function
i