RTU Modbus interface : MPNC006 Mect srl
10
ME7084_05 07/21
3.1.3
Digital outputs power supply
The digital outputs of the MPNC006 can provide up to 2A maximum current at 24V.
The maximum allowable current per single output is 500mA. The current supplied
by the outputs is supplied by the power supply of the terminal itself: it is the
responsibility of the installer to correctly size the power supply to guarantee the
necessary current
.
Figure 8
3.1.4
Fuses
The system has no fuses internally; however, for the protection of the input of the
MPNC006 power supply, it is recommended to insert a 1 A fuse, while for the
power it is necessary to put a 2,5A.
3.1.5
Grounding
The DIN rail on which are mounted the MPNC006 and the terminals
must be
carefully grounded in order to increase the rejection of electromagnetic
disturbances.
3.1.6
Cable screen
To make the system less sensible to disturbances , the connection cable between the
operator panel and the MPNC006 should be screened and connected to both devices
GND.