Lenze ECS Série Instructions De Montage page 118

4 Electrical installation
Control terminals
Safe torque off
4.3.3.1 Important notes
Installation/commissioning
The "safe torque off" function must only be installed and commissioned
ƒ
by qualified personnel.
All control components (switches, relays, PLC, ...) and the control cabinet
ƒ
must meet the requirements of EN ISO 13849. These include for instance:
–
Switches, relays in enclosure IP54.
–
Control cabinet in enclosure IP54.
–
All other requirements can be found in EN ISO 13849.
Wiring with insulated wire end ferrules is essential.
ƒ
All safety−relevant cables (e.g. control cable for the safety relay, feedback
ƒ
contact) outside the control cabinet must be protected, e.g. in the cable
duct. It must be ensured that short circuits between the individual cables
cannot occur. For further measures, see EN ISO 13849.
If force effects from outside (e.g. sagging of hanging loads) are to be
ƒ
expected when the "safe torque off" function is active, additional
measures have to be taken (e.g. mechanical brakes).
}
Danger!
When using the "safe torque off" function, additional measures are
required for "emergency stops"!
There is neither an electrical isolation between motor and axis
module not a "service" or "repair switch".
Possible consequences:
ƒ
ƒ
Protective measures:
ƒ
During operation
After installation, the operator must check the "safe torque off" function.
ƒ
The function check must be repeated at regular intervals, but no later
ƒ
than after one year.
118
Death or severe injuries
The machine/drive may be destroyed or damaged
An "emergency stop" requires the electrical isolation of the
motor cable, e.g. by means of a central mains contactor with
emergency stop wiring.
l
EDKCSEX064 DE/EN/FR 4.0