7
8. Digital inputs
The pump is equipped with 2 digital inputs.
The tension of the input IO1 is directly supplied by
the pump, the input is OFF when connected with
the 0V clamp, is in ON when connected to the 0V
clamp.
IO2 can use the 24V pump power supply.
The IO1 input is set to operate as remote
start/stop of the pump.
The IO2 input is set to allow the pump to operate
at the maximum curve.
9. NCED pump operation
The NCED pumps are set to operate with only
one pump active (other pump in stand-by). The
operating pump changes once per day.
ATTENTION:
Every pump operates according
to its own settings, so parameter changes
should be made on both pumps.
If any pump detects an error or loss of communi-
cation, the standby pump will start in less than 15
seconds.
10. Maintenance
The pump does not require any special
maintenance during operation.
At the beginning of each eating period, or after a
prolonged stand still,
verify that the pump is not
jammed (the led continuously changes the
colour).
If the pump is jammed follow the manual cleaning
procedure described in the next paragraph.
11. Dismantling
Close the suction and delivery valves and drain
the pump casing before dismantling the pump.
The motor and all internal parts can be
dismantled without removing the pump casing
and the pipes.
Before any servicing operation
disconnect the electrical power and
wait until the water has cooled inside
the pump, if is not possible use the
suitable protective devices to prevent
the risk of burns.
By removing the screws (
fig. 2
) the motor is taken
out complete with impeller.
Disassemble the motor and clean the impeller.
12. Spare parts
When ordering spare parts, please quote the data
stamped on the name-plate (type, date and serial
number).
13. Disposal
Observe the local regulations and dispose the
product accordingly. This product contains
electrical and electronic components and should
be disposed of carefully.
Changes reserved.
N°
E1
X
E2
X
E3
X
E4
X
E5
X
Displayed alarm
Blockage due to low power
absorption.
Blockage due to overcurrent in
the motor.
Blockage due to overheating.
Interna hardware error.
Blockage due to motor interrup-
tion.
Causes
No fluid on the system, check the presence of fluid
into the system.
Overcurrent into the motor or rotor locked, check if
rotor turn freely.
The temperature into the motor is too high . Pump
automatically restarts when the temperature go
down.
An electronic error occurred, the pump can operate
but assistance is required.
Interruption in the motor winding. Contact the techni-
cal assistance.
7. Alarms
If a failure occurs in the pump, the cause of the failure will appear in the display.
The error is identified by two digits, the first digit explains the alarm type, the second digit is reserved for
the technical assistance.
IST NCE GF_2013:istruzioni N, N4 09/10/13 11.10 Pagina 7
Summary of Contents for NCE GF Series
Page 24: ...3 4 50 C 5 10 6 Off 6 1 I 6 2 i 3 i i 6 3 50 6 4 I 5 24...
Page 27: ...3 4 50 C 5 11 6 Off 6 1 i 6 2 i 3 i i 6 3 4 50 6 4 i 5 27...
Page 28: ...8 IO1 0V 0V IO2 24V IO1 IO2 9 NCED NCED 15 10 11 2 12 13 28 N E1 X E2 X E3 X E4 X E5 X 7...
Page 29: ...A 29 Fig 1 Fig 3 Fig 2 90 4...
Page 30: ...FC 30 Fig 5 90 Fig 4...
