ZIEHL-ABEGG ZETADYN 4C, Перевод оригинальной инструкции по эксплуатации

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5.16 STO interface (X-STO)
The following points must be observed when switching and wiring the STO signals:
•
Separate relays must be used for every input for switching the STO signals (two-channel activa-
tion).
•
When wiring the STO signals, short-circuits and external shorts must be ruled out on power lines
and terminal points because the internal diagnostics of the ZETADYN 4C does not detect any
short-circuits on the power lines:
– Outside the switch cabinet, the STO line must be permanently laid ( fi xed) and protected against
external damage (e.g. cable duct, armoured tube or similar). If separate jacketed cables are
used for the STO_A and STO_B signals, the cables must not be laid with protection (according
to ISO 13849-2).
–
Air and creep distances of at least 2 mm must be kept between the STO_A, STO_B and +24V_
STO signals according to EN81 (e.g. at terminal points).
–
Terminals which comply with a CENELEC or IEC standard must be used.
–
The wiring technique must be compliant with DIN EN 60204-1.
•
External shorts must be ruled out in the exciter voltage of the relays that actuate the STO inputs
(end of the safety chain).
•
Supply cables (power cable, motor cable) and STO cables must be laid separately.
•
The maximum line length is 50 m.
•
Use shielded lines.
The relays used to activate the STO inputs must meet the following requirements:
•
Safe disconnection between coil and contacts according to EN 60664-1 or equivalent standard.
•
Rating according to the technical data of the STO inputs (typ. 24 V/12 mA). It is recommended to
use relays with hard gold-plated contacts.
•
Switching voltage min. 60 VDC
Danger!
If you use an external voltage source instead of the internally generated 24 V voltage (X-STO: +24V_
STO) to actuate the STO inputs, you must use a voltage source with low voltage and safe electrical
disconnection (SELV/PELV).
See the chapter "Safe Torque Off(STO) function" for further information.
5.16.1 Terminal assignment X-STO
no. Name Function
6 +24V_STO 24VDC output voltage
(to be used only for activation of the STO inputs, do not connect
any additional loads)
5 GND Reference potential 24VDC output voltage
4 STO_A Input STO A
3 GND_STO Reference potential inputs STO A/B
2 STO_B Input STO B
1 Shielding
5.16.2 Technical data X-STO
Voltage range 0...30 VDC
Switching level LOW / HIGH 0 V < LOW < 3 VDC
15 V < HIGH < 30 VDC, typical: 24 VDC
Current consumption at 24 VDC typ. 12 mA per input
Connection terminal range min. 0,25 mm ² ...max. 2,5 mm ²
Translation of the original operating instructions
ZETADYN 4C
Electrical installation
R-TBA12_01-GB 1415 Part.-No. 00163371-GB
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Electrical
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