ECU 1000 Installation and Maintenance
Copyright by BIFFI ITALIA. All right riserved
Copyright by BIFFI ITALIA. All right riservedCopyright by BIFFI ITALIA. All right riserved
Copyright by BIFFI ITALIA. All right riserved DTDE326-e1 Pag. 5
•Operating temperature of electronics from -40 °C to +75 °C
•Electronics suitable to “On-field” operation inside an IP65 or Ex-d cabinet containing:
oECU1000 electronic cards
oPower supply module
oLine filter, fuses, surge arrester, optional magnetothermal switch
oDIN RAIL terminals for connection with control room, HA, HPU and HCU
oOptional Heater
5.3 Inputs and Outputs
Each input and output is configurable and can be associated either to signals to/from control room and HA, HCU, HPU.
•Analogue inputs
4 x 4-20mA analogue inputs, insulating amplifiers and surge arresters. Max voltage drop at 20mA=9V
1 x 4-20mA analogue input, insulating amplifier and surge arresters. Jumper (J6) to select High/Low impedance mode.
Impedance in High impedance mode >100Kohm. Impedance in Low impedance mode <250ohm.
•Analogue output
1 x 4-20mA analogue output, insulating amplifier and surge arresters. Max resistive load 250 ohm, active or passive
current loop, max voltage 24V.
•Digital inputs
10 x digital inputs, optocoupled, max voltage 30Vdc, surge arresters. Max absorbed current 7mA. Logical_0 < 5V,
Logical_1 >15V
•Digital output
1 x digital outputs, optocoupled, surge arresters, max 24V
•Servovalve / proportional valve control
1 x analogue output configurable by jumpers, insulating amplifier and surge arresters
o+-10V, +-10mA, +-15mA, +-50mA, +-100mA
1 x digital output, optocoupled, surge arrester
oenable control to servovalve / proportional valve or general output
1 x digital input, optocoupled, surge arrester
ofault status of servovalve / proportional valve or general input
The Servovalve/Proportional Valve stage is supplied at 24VDC and is protected by a 4A T fuse in the ECU1000
cabinet.
•Output relays
4 x single side stable, SPDT contact, voltage free, max 30Vdc/230Vac/1A
5 x single side stable, SPST NO contact, voltage free, max 30Vdc/230Vac/1A
2 x single side stable, SPST NO contact, voltage free, max 30Vdc/230Vac/1A (on demand latching relay)
According to user request, to the application and to the electrical diagram, some contact is available to the end user as
remote signalling and the remaining contacts are available to control the electrical components of HA, HCU and HPU.
The set of condition to switch each relay is configurable.
Important:
The contacts of the output relays are available on the connectors CN39, CN40 and
CN41 (see par.5.7, RL0 to RL10). If the voltages through the contacts are different
(e.g. 230Vac and 24Vdc), it is suggested to group the contacts with the same voltage
in the same connector. Each contact should be protected by 1AT fuse, not provided
in the ECU1000 cabinet. If the contacts work as control of an external load, the
fuse should be provided in the cabinet containing the electrical load. If the contacts
work as signalling to control room, the fuse should be installed in the marshalling
cabinets of the control room at customer care. Reinforced insulation is provided
between each group of relays connected to connectors CN39, CN40, CN41; basic
insulation is provided between each relay connected to the same connector; the end
user shall provide the same insulation in the external load.
