ProMinent
®
Page 5
Function Description
“Prime” function:
Priming (short term feed at maximum frequency) is activated by pressing both arrow keys at the
same time.
Optional relay The gamma/ L has two connection options.
“Fault indicating relay” option:
In the event of fault signals, warning signals or float switch activation signals, connects an
electrical circuit to trigger alarm sirens etc. The relay is retrofitted via an aperture in the power
end.
“Fault indicating and pacing relay” option:
Along with the fault indicating relay, the pacing relay produces an electrical impulse for every
stroke. The relay is retrofitted via an aperture in the power end.
Function and error
indicators The operating and error status is shown via the three LEDs and the “error” indicator on the LCD
(see also section 12):
LCD indicator If a fault occurs “error” will appear along with an additional fault warning.
LED indicator Operating indicator (green)
This indicator is lit as long as the gamma/ L is operating correctly.
Warning indicator (yellow)
This warning light appears if the gamma/ L electronics detect a situation that could lead to a
fault, e.g. “liquid levels low 1st stage”.
Warning indicator (red)
This warning light appears if a fault occurs, e.g. “liquid levels low 2nd stage”.
Hierarchy of operating modes, functions and fault statuses
The different operating modes, functions and fault statuses each have a differing effect on
whether and how the gamma/ L functions. These effects are given below:
1. Prime
2. Fault, stop, pause
3. Auxiliary frequency
4. Manual, analogue, contact, batch
to:
1. “Prime” can be activated in any pump status (as long as it is operable)
2. “Fault”, “stop” and “pause” stop all system parts up to “prime”.
3. The stroke rate of the “auxiliary frequency” always overrides the existing operating stroke
rate.
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