Instruction manual V 2.3
14
PWM 230 - PWM 400 - PWM 400/7.5
Instruction manual
Figure 7: Connection to be made on a motor managed by PWM 400
Normally the PWM devices are equipped with a cable labelled “Pump”, for connection to the motor.
Connection between PWM 400 – PWM400/7.5 and the electro pump is made with a 4-wire cable (3 phase +
ground) and is made on the 4 ways terminal "J7-J4" with “PUMP” silk-screened on it and an arrow at the
output (see Figure 8). The section of the wire must be greater or equal to 1.5 mm
2
for any length.
Figure 8: Three-phase electro pump output terminal
Wrong connection of the earth line to a terminal other than the earth one may cause
irremediable damage to the whole appliance.
Wrong connection of the power supply line on output terminals intended for the load
may cause irremediable damage to the whole appliance.
Once the electric and hydraulic connections are completed, turn on the system and perform the operations
described in chapter 4.
2.4 Electrical
connection
of user inputs and outputs of PWM230 PWM400
PWM400/7.5
All PWMs are equipped with 3 inputs and 2 outputs used to connect to other devices.
Figure 9 and Figure 11 show the logical-functional schemes of possible connections.
Figure 10 and Figure 12 show, as an example, two possible inputs and outputs configurations.
The installer will just need to connect the desired input and output contacts as desired and to configure
related functionality (see section 5.1.3.9).
Typical connection for devices with power
lower than 5,5 kW
Typical connection for devices with power
greater or equal to 5,5 kW
