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IMTP(D) 2.2 – ITTP(D) 2.2/4.0/5.5/7.5 - ELECTROIL
ENG
5.6.1 Common connections for all models:
Open the inverter box unscrewing all the cover screws.
In case the inverter is switched-off from the line switch, wait at least two minutes before operating on
the Inverter, in order to ensure that the capacitors are fully discharged.
• For the motor mounting version (M), fix the bottom of the inverter box to terminal motor case with the 4 screws;
For the wall mounting version (W), fix the inverter to the wall with the N°4 special fixing;
• If is necessary, for the board motor inverters, disconnect the two cables connectors (3 and 26 poles) on the
logic board, then reconnect before to re-close the cover;
• Connect the N°3 motor terminals U, V, W on the power board;
Connect the two line wires on L, N, for single-phase Inverter IMTP(D)2.2 and the ground cable with ring terminal
on the GND screw (fig. 13), or the three line wires and ground on L1, L2, L3, GND for ITTP(D)2.2/../7.5 (use
the up-level connector extension for ITTP(D)4.0/../7.5W) fig. 14, 16;
5.6.2 Pressure transducer connection for the absolute pressure control (centrifugal pumps):
Table 3: Pressure transducer connection for IMTP2.2-ITTP2.2
Table 4: Pressure transducer connection for ITTP 4.0-5.5-7.5
Terminals of the pressure transducers in use: K16 (16 Bar), K25 (25 Bar):
• Brown wire: +Vdc
• White wire: Pressure signal output (4 – 20 mA)
5.6.3 Pressure transducers connection for differential pressure control (circulating pumps):
Table 5: Pressure transducer connection for IMTPD2.2-ITTPD2.2
Table 6: Pressure transducer connection for ITTPD 4.0-5.5-7.5
Terminals of the pressure transducers in use: K3T (3 Bar), K5T (5 Bar), with temperature compensation to maintain
accuracy of 0.5% F.S. between 0-90°C:
• Brown wire: +Vdc
• White wire: Pressure signal output (4 – 20 mA)
TRANSDUCER TYPE CONNECTIONS ON THE LOGIC BOARD OF IMTP 2.2 – ITTP 2.2
8 – 30 Vdc 4 – 20 mA
J8-1 (+15V) Positive of the voltage supply
J8-2 (PS1) Transducer output
TRANSDUCER TYPE CONNECTIONS ON THE LOGIC BOARD OF ITTP 4.0/../ITTP 7.5
8 – 30 Vdc 4 – 20 mA
+Vdc alimentazione trasduttore
J8-1 (AI1) Uscita trasduttore di pressione
ON ON
TRANSDUCER TYPE CONNECTIONS ON THE LOGIC BOARD OF IMTPD2.2 – ITTPD2.2
8 – 30 Vdc 4 – 20 mA
J8-1 (+15V) +Vdc, Positive of the voltage supply
J8-2 (PS1) Transducer output P2, on the Delivery side
J8-3 (PS2) Transducer output P1, on the Inlet side
TRANSDUCER TYPE CONNECTIONS ON THE LOGIC BOARD OF ITTPD4.0/../ITTPD7.5
8 – 30 Vdc 4 – 20 mA
+Vdc, Positive of the voltage supply
J8-1 (AI1) Transducer output P2, on the Delivery side
J8-2 (AI2) Transducer output P1, on the Inlet side
ON ON