Phase sequence
The voltage phase sequence and the phase L1 frequency
are displayed on the screen.
The phase sequence shows the three-phase system
sequence. The rotary field usually rotates to the "right".
The voltage measurement input phase sequence
is checked and displayed in the UMG 96RM-E.
If the string moves in a clockwise direction, this means
that the rotary field rotates to the "right"; if the string
moves in a counter-clockwise direction, this means that
the rotary field rotates to the "left".
The field rotation can only be determined when
the measurement and operating voltage inputs are fully
connected. If a phase is missing or two equal phases are
connected, then the phase sequence is not determined
and the string is not moving.
Fig. Indication of the supply
frequency (50.0)
and the phase sequence.
Fig. Rotary field direction
can not be determined.
LCD contrast (Addr. 035)
The preferred view for the LCD display is from "below".
The LCD display contrast can be adapted by the user.
The contrast can be set stepwise in the range from
0 to 9.
0 = very bright
9 = very dark
Factory default setting: 5
Backlight
The LCD backlight allows the display to be read easily
even in poor light. The brightness can be controlled by
the user in stages from 0 to 9.
The UMG 96RM has two different types of backlight:
- the operation backlight
- the standby backlight
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