To activate the terminating resistance, the jumper at terminal J4 must be plugged into the right two
pins (see Fig.).
Jumper at terminal J4
For more detailed information on CANopen lift, see chapter "Serial communication/CANopen lift" in
part 2. of the operating instructions.
5.12
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 ZAdynpro 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 relays used to activate the STO inputs must meet the following requirements:
Rating:
According to the technical data of the STO inputs: Typ. 24 V/12 mA
Switching voltage:
Min. 60 VDC
Relay contacts:
Recommended: Relays with hard-gold-plated contacts
Isolation:
Safe disconnection between coil and contacts according to EN 60664-1 or
equivalent standard.
Interference immunity:
Suf
fi
cient interference immunity to interference voltages on the control side
(coil), such as for capacitive couplings in long control lines. If in doubt, use
a relay with increased drop voltages (such as Phoenix Contact series PLC-
…
SO46, Finder series 38.51.3 or comparable).
Original operating instructions
ZAdynpro
–
Part 1
Electrical installation
R-TBA17_01-GB 1837 Index 004
Part.-No. 00163459-GB
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