Electrical connection
Fieldgate FXA42
14
Hauser
6
Electrical connection
L
WARNING
Danger! Electric voltage!
Risk of electric shock and injury from startle response.
‣
De-energize all power sources before connecting.
‣
Before commissioning the device, measure the supply voltage and compare it with the
voltage specifications on the nameplate. Only connect the device if the supply voltage
measured matches the specifications.
6.1
Supply voltage
The supply voltage is 24 V
DC
(±20 %). You may only use power units that ensure safe
electrical isolation according to DIN VDE 0570-2-6 and EN61558-2-6 (SELV / PELV or
NEC Class 2) and that are designed as limited-energy circuits.
6.2
RS485 serial interface (Modbus)
Internal resistance: 96 kΩ
Protocol: Modbus RTU
External termination required ( 120 Ω)
6.3
Terminal assignment
L+
L–
"
D+
D+
D–
D–
A
B
41
42
43
44
31
32
33
34
21
22
23
24
11
12
13
14
DO0 DO1 DO2 DO3
A0030525
Terminal
assignment of
input modules
Properties
Function
11 21 31 41
GND
12 22 32 42
Input voltage L: < 5 V
Input voltage H: > 11 V
Input current: < 5 mA
Maximum input voltage: 35 V
Digital input
