Pulsafeeder PULSAtron Series MP EN - Manual (Page 15)

15
RELAY OFF
In all control options the relay remains open at all times.
STOP FUNCTION
In all control options the relay is normally open and closes while the Stop Function is activated through the stop port.
CURRENT SIGNAL LOSS
In any Current Signal control option, the relay is normally open and closes while the Signal Loss alarm is in effect.
FULL COUNT
In the Stroke Counting control option, the relay is normally open and closes while the Full Count alarm is in effect.
PULSE OVERFLOW
In any External Pulse control option with Pulse Storage, the relay is normally open and closes while the Pulse Overflow
alarm is in effect.
REPEAT STROKES
In all control options, the relay is normally open and closes momentarily during each stroke of the pump. If the pump is
equipped with a 24 VDC signal relay output, this function may be used to pace another externally paced pump.
CIRCUIT FAILURE
At all times, the relay is normally open and closes while the Circuit Failure alarm is in effect. The numbers which flash
alternately with the alarm signal are for failure diagnosis at the factory.
FLOW VERIFY
If the pump is equipped with the flow verification option, the relay is normally open and closes while the Flow Failure alarm
is in effect.
ALARMS
Alarms are distinguished by a fully flashing display.
CIRCUIT FAILURE
At all times, pumping is disabled and the pump will no longer operate until repaired.
SIGNAL LOSS
In any Current Signal option, the Signal Loss alarm is triggered whenever the signal drops below approximately 2 mA for
several seconds. The pump stops operating during the loss of signal condition and resumes normal operation when the
signal is restored. This includes the 20-4 mA option, in which a low current (4 mA) signal normally calls for full pump
output in order to prevent overfeeding in the event of signal loss.
FULL COUNT
In the Stroke Counting control option, when the preset number of strokes has been delivered and the pump stops, the Full
Count alarm is triggered.
PULSE OVERFLOW
In the Pulse Storage option, when memory capacity is exceeded the Pulse Overflow alarm is triggered. The pump
continues to respond to external signal pulses as if 9,999 pulses were in storage.
PULSE RATE HIGH
In any External Pulse Control option without Pulse Storage, receipt of any pulses at a faster rate than maximum pump
stroking rate, 125 strokes per minute, the Pulse Rate High alarm is triggered. The pump continues to operate at its
maximum rate and does not respond to the excess pulses.
FLOW FAILURE
If the pump is equipped with the flow verification option, the pump will stop stroking and the screen will display Flow
Failure when the flow sensor does not detect flow from the pumps discharge port.