Structure of the 3RK3 ASIsafe extended central unit
Front view No. Meaning
7),1),1,1,1$6L
7),1),1,1,1$6L
444/0)(
;;
'(9,&(
6)
5(6(7
),1
066$6,VDIH
$6L
7($&+
24V
DC
),1,1 ,14
),1),1 ,1,14
3RK3122-1AC00
① Removable terminal block D
② Removable terminal block C
③ Connection for expansion module (X2)
④ RESET button
⑤ Removable terminal block A
⑥ External memory module (X3; sealable)
⑦ Label
⑧ Display LEDs
⑨ Connection of PC or programming device,
interface module, diagnostics display (X1)
Internal circuit diagram
.
/RJLF
,1
)
,1
)
,1
)
,1
$6L$6L
;
;
)(
).
4
).
4
0
0
).
4,1,17,1,17)
9
/
Figure 5-9 MSS 3RK3 ASIsafe extended internal circuit diagram
Terminal designations of the 3RK3 ASIsafe extended central unit
Terminal Meaning Description
T1 Test output for inputs
F‑IN1, F‑IN3
• Test outputs with dierent test signals
• Connection for sensor contacts for detecting cross-
circuits
T2 Test output for inputs
F‑IN2, F‑IN4
Description of the hardware
5.1 Description of the individual modules
SIRIUS 3RK3 Modular Safety System
92 Equipment Manual, 07/2020, NEB926253002000/RS-AC/006
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