SEW-Eurodrive MOVIFIT MC, Руководство пользователя, Страница: 13 / 32

3
Safety-related conditions
Installation requirements
Manual – Functional Safety
13
3.2 Installation requirements
• Safety-related control cables are all cables between safety controller and
MOVIFIT
®
terminal X29.
• Supply system cables and the safety-related control cables must be routed separ-
ately (Exception: When using genuine hybrid cables by SEW‑EURODRIVE).
• The line length between the safety controller and MOVIFIT
®
may not exceed
100 m.
• To connect the MOVIFIT
®
device to the motor, SEW‑EURODRIVE recommends
using the specifically designed prefabricated hybrid cable by SEW‑EURODRIVE.
• The wiring technology used must comply with EN 60204-1.
• Route the safety-related control cables EMC-compliantly.
– Outside an electrical installation space: Shielded cables must be routed per-
manently (fixed) and protected against external damage, or other equivalent
measures.
– No single conductors must be routed within the installation space.
• Make sure that parasitic voltages cannot be generated in the safety-related control
cables.
• Observe the values specified for safety controllers when designing the safety cir-
cuits.
• Observe the notes in the "MOVIFIT
®
.." and "MOVIMOT
®
MM..D" operating instruc-
tions for information on EMC-compliant installation.
• For all 24 V supply voltages of the MOVIFIT
®
device only voltage sources with safe
disconnection (SELV/PELV) according to EN 60204‑1 and EN 61131‑2 are permit-
ted.
In case of a single fault, the voltage between the outputs or between any output
and grounded parts may not exceed DC 60 V.
• Observe MOVIFIT
®
and MOVIMOT
®
MM..D technical specifications.
3.3 External safety controller requirements
The following requirements for the external safety controller for controlling the STO
safety function apply to safety-related disconnection with binary control.
The requirements apply to both a safety controller and a safety relay.
• For safety-related approval to EN ISO 13849‑1, there must be at least one ap-
proval for performance level d according to EN ISO 13849‑1 and the disconnection
of the safety-related control voltage must be designed for performance level d to
EN ISO 13849‑1 at least.
• The wiring of the safety controller must be suitable for the required safety class.
Safety circuits with MOVIFIT
®
require 2-pole disconnection.
• The values specified for the safety controller must be strictly adhered to when
designing the circuit.
29157056/EN – 09/2019