Danger
The connected motor is not separated from the ZETADYN 4 by activation of the STO function.
Therefore, you must disconnect the ZETADYN 4 from the supply voltage in order to perform work on
the wiring or the motor. You must wait at least Allow 3 minutes for discharging the intermediate circuit
capacitors. The safe isolation from the supply must be checked using a two-pole voltage tester.
Danger
If the drive is enabled again after being disabled by the STO function, the drive can restart
automatically. If this is not admissible for the application, this must be implemented by external
measures (restart e.g. only after con
fi
rmation).
9.3
Principle circuit diagram
(1)
STO_B
(2)
STO_A
GND_
STO
(4)
(3)
+24V_
STO
GND
(6)
(5)
N
L
X-STO
K2
K1
1
2
3
4
O51
O54
(9)
(10)
24V I1
X-OUT
STO-Info
24V*
A*
B*
ZETADYN 4
1)
Principle circuit diagram "Safe Torque Off (STO)" function
1
Safety circuit
2
Modulation
3
Protected routing or design with two separate jacketed cables (see chapter "STO interface (X-STO)")
4
Digital inputs control
*
Wire designation of the pre-assembled connecting lead L-SL-xx-HX-ZA4-STO
1)
Information only, not safety-related
9.4
Electrical connection
The connection is made via the interface X-STO on the ZETADYN 4 (see chapter "Electrical installa-
tion/STO function (X-STO)").
Translation of the original operating instructions
ZETADYN 4C
"Safe Torque Off (STO)" function
R-TBA12_01-GB 1415
Part.-No. 00163371-GB
60/204
Содержание ZETADYN 4C
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