Seneca S6001, User Manual

Page: 99 / 122

Doc. MI004620-I
S6001 Pump controller
Rev. 0
www.seneca.it
99 / 122
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User Manual
Code
Alarm
Description Cause Solution
OT001 P1 M/A INCONSISTENCY
The pump controller is sending
the pump start command, but
the contactor status contact sig -
nals the pump is switched off
- Check the wiring in the termi -
nal box of the inputs/outputs re -
lated to the feedback and pump
control. - Check that the pump
power supply contactor is work -
ing correctly - Check that the
auxiliary contacts of the pump
supplying contactor are of the
normally open type with con -
tactor coil resting - Check the
wiring of the auxiliary contacts
of the pump supply contactor is
correct
WARNING: The wiring de -
pends on the type of system
(ref. S6001 System Type Lim -
its_v1.5.xls).
OT002 P1 THERMAL SWITCH
The pump automatic circuit
breaker is switched off and the
pump is not powered
- Check the wiring in the ter -
minal block for the status of
the pump automatic circuit
breaker. - Check that the aux -
iliary contacts of the automatic
circuit breaker are normally
open. ATTENTION: The wiring
depends on the type of system
(ref. S6001 System Type Lim -
its_v1.5.xls).
OT003 P1 ANOMALY
The inverter connected to the
pump is faulty
- If wired inverter: check the wir -
ing of the fault signal from the
inverter is correct.
- If ModBUS inverter: check the
RS485 data connection cable
for correct connection and po -
larity of the A/B signals. Check
whether any abnormal detec -
tions have appeared in the local
inverter interface. Consult the
inverter supplier's manual.
OT005 P2 M/A INCONSISTENCY
See CAUSE and SOLUTION
of ALARMS OT001, OT002,
OT003
OT006 P2 THERMAL SWITCH