Installation
3
Installation
3.1
Circuit for
“
Safe standstill with safety relay
”
The example shows minimum wiring of the components. This ensures the troublefree operation of
the
“
Safe standstill
”
function of 93XX-V004 controllers.
S 1
S 2
+ 2 4 V
K 4
A U S
E I N
S 3
E m e r g e n c y o f f
K 4
0 V
S 4
F 1 . . F 3
L 2
L 1
L 3
S a f e t y d o o r m o n i t o r i n g
E m e r g e n c y o f f
S t a r t - S t o p m o m e n t a r y c o n t a c t p u s h b u t t o n
K 2 a
E m e r g e n c y o f f
s w i t c h i n g d e v i c e
S a f e t y d o o r
s w i t c h i n g d e v i c e
K 2 a
K 4
K 3
K 2 b
K 2 b
K 3
K 2 a
K 4
A 1
A 2
K 3
C W
r o t a t i o n
C C W
r o t a t i o n
t
A 1
t
A 2
Q S P
R F R
9 3 x x
X 1 1
G N D
I G B T
A 3
V 0 0 4
D C
+ 2 4 V
C W
r o t a t i o n
C C W
r o t a t i o n
K
S R
K 3 2
3 4
3 3
E 1
K 3 1
E 2
2 8
3 9
5 9
X 5
Fig. 1
Minimum wiring for 93XX-V004 controllers with safety relay
to EN 954-1 control category 3 and EN 1037, stop category 1 to EN 60204-1
3.1.1
Description
For a circuit with a safety relay for emergency off and door lock follow EN 954-1 control category
3 and EN 1037. The circuit in Fig. 1 shows a stop function of stop category 1 to EN 60204-1:
•
The circuits for emergency off and door locking are two-channel circuits protected against
short circuits between signal cables. The integrated switching devices are equipped with
positively driven contacts.
•
The 24 V DC supply for the start/stop button (S1
“
OFF
”
, S2
“
ON
”
) flows through the contacts
of A1 (emergency off) and A2 (safety door).
•
A1 and A2 and the relay K3 have an additive effect on the input
“
Quick-Stop
”
(QSP) of the
controller (A3) via terminal E1 (CW rotation) and terminal E2 (CCW rotation).
•
The appropriate control devices must be integrated to ensure a reversal of the direction of
rotation.
•
If the safety door is opened during operation, there will be an off-delay on the mains
contactor and also the power supply to the controller. This will not occur if the feedback
contact K31 - K32 of the safety relay (K
SR
) indicates activation of the external pulse inhibit via
X11 (2nd switch-off circuit).
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