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FW-F074-A-M_v0404_01_EN.docx
4.7.1
TERMINAL GND-1-2: POWER SUPPLY
To power the F074-A with a power supply option of type PF or type PM, connect a suitable power
supply to the terminals as indicated in below table:
Power supply
option
Power supply
Terminal
GND
01
02
Type PF
24V AC
10%
AC
AC
Type PF
24V DC
10%
L-
L+
Type PM
115-230V AC
10%
AC
AC
The total consumption of the sensor and backlight type ZB may not
exceed 400mA@24V DC.
Risk of damage to equipment!
Be very careful when connecting the common ground of the system to Protective Earth (PE).
Connecting the common ground to Protective Earth (PE) (especially when multiple power
supplies are connected) can cause ground loop currents that could damage the equipment.
See paragraph 4.5.2: Protective Earth (PE) connections for more information.
4.7.2
TERMINALS 3-4: CONTROL OUTPUT
Type OT
A passive transistor output is available with this option. Max. driving capacity 300mA@50V DC.
Fig. 20: Terminal connections - Passive transistor output (OT).
Type OA
An active 24V DC transistor output is available with this option.
Max. driving capacity 400mA@24V DC. (Requires power supply type PF / PM)
Fig. 21: Terminal connections - Active transistor output (OA).
Type OR
An isolated mechanical relay output is available with this option.
Max. switch power 240V 0,5A. (Requires power supply type PF / PM). Be sure that the output
frequency does not exceed 5Hz, else the relay life time will be reduced significantly.
Fig. 22: Terminal connections - Mechanic relay output (OR).
