15
ARCHIMEDE LCD SERIES - ENG
ELECTROIL
Pressure Control
1. Pressure Hysteresis [BAR]
2. Max Limit Pressure [%]
3. Dry working stop delay [s]
4. Dry working re-start delay time
[min]
5. Minimum flow stop delay [s]
6. Re-start delay after minimum flow
stop [s]
7. Cos φ limit
8. Alternation time
1. Pressure control hysteresis- Default: 0.20 BAR;
2. Max value of pressure % referred to Set-point
pressure value – Default: 130% (increase the value
up to 200% in case of alarm 14 “Max Pressure”);
3. Dry working stop delay time for pump filling– Default:
40 seconds;
4. Dry working re-start delay time after firsts 4th try;
after the 5th try the Inverter stop with manual re-start
(STOP + START)– Default: 15 minutes;
5. Delay time before minimum flow stop – Default: 15
second;
6. Re-start delay time after minimum flow stop -Default:
1 second;
7. When cos φ go down this value the pump stop for
dry working (may be absence of input water or air) –
Default: 0.5;
8. Alternation time on the change from one to other
pump to define the first to start
Group Functioning
1. Control type
• Pump Speed
• Pump Pressure
• MasterSlave
2. Reference speed [RPM]
3. Pumps number (2..8)
4. Code (0..7)
5. Radio Frequency (780..820 MHz)
6. Stand-by preheating temperature
1. Set Control Type (Default: Pump Pressure):
• Pump speed: directly regulation of the speed in
absence of pressure sensor; security stop for null
flow and dry working conditions, only with manually
re-start.
• Pump pressure: feedback control of pressure - need
the pressure sensor;
• MasterSlave – group functioning with others Inverters
2. Value of the reference speed on the Speed control;
3. Pumps Number: Number of pumps in group
functioning (2..8).
4. Code: 0 for Master; >=1 for Slave
5. Radio Frequency: communication R/T frequency
(must be the same for the inverters on the group)
6. Minimum preheating temperature with the engine
stopped – Default: 25°C (the function can be
deactivated by setting the relevant parameter to 0)
P.I.D. factors
1. K
proportional
2. K
integral
3. Pressure ramp
1. K
proportional
: 0-100. Pressure error multiplayer –
Default: 25
2. K
integral
: 0-100. Integral of pressure error
multiplier - Default:25
3. Pressure ramp [bar/s]: 0.1-10.00 – Default: 0.5
BAR/s
Alarm history
Alarm N°
Type
Visualization of last 100 alarm events (see table 7) in
chronologic order.
Table 6: advanced functions sub-menu
6.5 Alarms
N°
Alarm Type Description
1
Current Peak
Immediately stop probably caused by short-circuit
Automatic re-start; final stop after 10 consecutive events
2
Over-Voltage
Normally caused by over voltage pick supply. Automatic re-start; final stop after 10
consecutive events
3
Inverter Temperature
Over temperature IGBT protection (90°C)
Automatic re-start; final stop after 10 consecutive events
4
Thermal protection
Motor thermal protection related to nominal current set, for motor insulations saving at high
temperatures. Automatic re-start; final stop after 10 consecutive events
5
Dry operating
Null input flow or air presence;
Automatic re-start; final stop after 5 consecutive events
6
Pressure sensor problem
Pressure sensor output problem
Automatic re-start; final stop after 10 consecutive events
7 Under-Voltage
Input voltage under the minimum working limit.
Automatic re-start; final stop after 10 consecutive events
8 Enable OFF
Open contact between EN e C (figure 14-15-16): stop the motor; the motor restart when
the contact will close again
9 Over-Current IGBT
Over current on the IGBT, overtaking a current limit value setting
Automatic re-start; final stop after 10 consecutive events
10 INPUT-OUTPUT
inverted
Connection mistake: Voltage supply connected on the output and Motor cable connected
on the entrance: reverse in order to enable the motor
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