B&R ACOPOSinverter P84, User Manual

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Integrated safety functions
362 ACOPOSinverter P84 User's Manual 2.10
3.6.2.11 Process system SF - Case 2
Connection diagram conforming to standards IEC/EN 61508 Category 3, ISO 13849-1 and IEC/EN 61508
Safety Integrity Level SIL 2, Stop Category 1 in accordance with the standard IEC/EN 60204-1
This connection diagram is suitable for machines with a long free ramp-down (machines with high inertia or low
resistance torque).
This diagram is not permitted to be used for lifting applications.
On activation of the stop command, the deceleration of the motor controlled by the inverter is first requested. Then
after a delay corresponding with the ramp-down time the safety function "power removal" is activated.
Example:
– 2-wire control
– LI1 is assigned to the movement in the right direction
– LI2 is assigned to the movement in the left direction
N (-) L1 (+)
F1
S1
A1
S21 S11 B1 S12 S22 13 23 33 41 57 67
A2
PE S33 Y1 Y2 Y3 Y4 Y5 14 24 34 42 58 68
(1)
(3)
(2)
A1
U
/
T1
R
/
L1
V
/ T
2
S
/
L2
W
/
T3
T
/
L3
P0
PA
/
+
PB PC
/
-
LI
1
LI
2
LI
6
PW
R
+2
4
R
1A
R
1C
R
1B
U
1
V1 W
1
M
3 ~
Braking resistor (if used)
S2
ESC
Logic
K1
K2
K3
K4
K1
K3 K1 K2 K4
115 V
230 V
K2
1 2
K3
K4
K1
K2
T -
+
(1) In this example the logic inputs LIx are wired as "sink", but can also be wired as "source int" or "source ext".
(2) Line choke (if used)
(3) Standard coaxial cable type RG174/U in accordance with MIL-C17 or KX3B according to NF C 93-550, outer diameter 2.54 mm, maximum length 15 m. The
cable shield must be grounded.
– The standards IEC/EN 61508 Safety Integrity Level SIL 2 and ISO 13849 PL "d" require the use of a stop
button with double contact (S1).
– S1 is used to activate the safety function "power removal".
– S2 is used to initialize the safety switching device during power up or after an emergency stop. You can
use other initialization conditions of the module via ESC.
– A safety switching device can be used for the safety function "power removal" of multiple ACOPOSinverter
P84 inverters. In this case, the delay must be set in accordance with the longest stop time.
– A logic output of the safety switching device can be used to safely indicate that the inverter is operating
under safe conditions.