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2.3 Alarm output / error messages
The alarm contact is closed in normal operation and opens in the event of a fault. The
relevant fault is simultaneously shown on the display in plain text (alternating with the
standard display in automatic operation). The following fault messages are displayed:
UNDER-COMPENSATED
missing reactive power
OVER-COMPENSATED
OVERCURRENT
MEASURING VOLTAGE ?
OVERTEMPERATURE
OVERVOLTAGE
UNDERVOLTAGE
HARMONICS
Additionally several messages for different operation states are generated. An individual
adjustment resp. suppression of particular messages is possible in expert mode 2. During
suppression, the indication of the message in the display, a possible release via alarm-
relays and effects on the controlling process will be prevented.
Section 3 Operating modes
When the operating voltage is switched on, the device displays its designation and
software version, then changes to its normal operating status (automatic operation). The
active cos-phi value is always displayed in the upper line and the currently connected
capacitors are shown as symbols in the lower line (operating display).
Automatic operation
Display of active power-line cos phi
j
cos
0.76 IND
Active capacitor
Control direction
branches
(here connected-in)
Repeated pressing of the "Operating Mode" key takes the user to the various menus in
sequence: Automatic operation - Programming -
Service - Expert mode and back.
Automatic oper.
Programming
to display operation
to programming
Display and relay output
Display and relay output
Display and relay output
Display and relay output
Display and relay output
Display and relay output
Display and relay output
Display and relay output
Supply display (for
4-quadrant operation)
Manual (manual operation)-
Manual operation
to manual operation
to value buffer
- 6 -
Prophi
The control direction is symbolized
by a closed arrow
Connecting-in
Connecting-out
The connecting-in arrow is always
located after the maximum possible
number of stages (end stop)
An open arrow indicates that the
required blocking time (discharge
time) is running before an impending
switching step
A double arrow symbolizes fast
switching of several branches
Service
Expert mode
to special functions
6T
®
7
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