Description of the hardware
5.1 Description of the individual modules
Modular Safety System 3RK3
System Manual, 10/2008, 926 2530-02 DS 02
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5.1.9 Expansion module 8DI
Properties
The 8DI expansion module supplements a central unit.
● It is suitable as an input module with non-safety-related sensor inputs, e.g. for:
– Displaying process statuses for operational switching.
– Detecting start buttons.
● Additional expansion modules can be connected to the expansion module 8DI.
● Parameterization is carried out via the central unit with MSS ES.
Inputs and outputs
The expansion module 8DI has the following inputs and outputs:
● 8 sensor inputs (non-safety-related)
Design of the expansion module 8-DI
Front view No. Meaning
(1) Removable terminal block D
(2) Removable terminal block C
(3) Interface X2
(4) Inscription label
(5) Removable terminal block A
(6) Removable terminal block B
(7) Display LEDs
6),1,1,1,1
,1,1,1,1
,1,1
/0,1
,1,1,1
5.$$
',
,1,1
(8) Interface X1
Terminal designations of the expansion module 8-DI
Terminal Meaning Description
IN1 ... IN8 Sensor inputs Connection for sensors
L+ Power supply 24 V DC
M Ground Ground to 24 V DC
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