WAGO 750 Series Manual page 15

WAGO I/O System 750
750-1491 2AI Resistor Bridge (Strain Gauge)
Power from SELV/PELV power supply only!
All field signals and field supplies connected to this I/O module (750-1491) must
be powered from SELV/PELV power supply(s)!
System supply only with appropriate fuse protection!
Without overcurrent protection, the electronics can be damaged.
For 24V system supply input voltage an external fuse, rated max. 2 A, slow
acting, min. 30 VDC shall be used.
Field supply only with appropriate fuse protection!
Without overcurrent protection, the electronics can be damaged.
For 24V field supply input voltage an external fuse, rated max. 10 A, slow acting,
min. 30 VDC shall be used.
Do not exceed maximum values via power contacts!
The maximum current that can flow through the power jumper contacts is 10 A.
The power jumper contacts can be damaged and the permissible operating
temperature can be exceeded by higher current values.
When configuring the system, do not exceed the permissible maximum current
value. If there is a higher power requirement, you must use an additional supply
module to provide the field voltage.
Do not exceed the maximum total current for I/O modules (5 VDC) via data
contacts!
The maximum permissible total current for internal system supply of the I/O
modules may not be exceeded. The permissible total current is specified in the
technical data of the head station and power supply. The data contacts for
internal system supply can be damaged and the permissible operating
temperature can be exceeded by higher values.
When configuring the system, do not exceed the permissible total current. If there
is a higher power requirement, you must use an additional supply to provide the
system voltage (5 VDC)!
Important Notes 15
Manual
Version 1.0.0