Lenze E94AYAD - SM300 - Manual (Page 8)

Safety engineering
Basics
Safety instructions
1
1.1
1.1.5

1.1-4 EDS94AYAD EN 2.2
1.1.5 Safety instructions
1.1.6 Application as directed
The safety modules SMx (E94AYAx) may only be used together with Lenze
drive controllers of the L-force | 9400 (E94A...) series.
Any other use shall be deemed inappropriate!
ƒ Only skilled personnel are permitted to install and commission the
safety functions.
ƒ All control components must comply with the demands of the hazard
and risk analysis.
ƒ Install the controllers in control cabinets with IP54 protection.
ƒ Wiring with insulated wire end ferrules or rigid cable is vital.
ƒ For modules without integrated short-circuit monitoring:
– All safety-relevant external cables (e.g. control cables for safety
functions, feedback contacts) outside the control cabinet must be
protected, e.g. by a cable duct.
– In this connection, make sure that short circuits cannot occur!
– For further measures see ISO 13849-2.
ƒ If external forces act on the drive axes, additional brakes are necessary.
The effect of the gravitational force on hanging loads must be
especially observed!

Danger!
If the request for the safety function is cancelled, the drive will
restart automatically.
You must provide external measures which ensure that the drive
only restarts after a confirmation (EN 60204).

Danger!
When the “safe torque off” (STO) function is used, an
”emergency-off” according to EN 60204 is not possible without
additional measures. There is no electrical isolation, no service
switch or repair switch between motor and controller!
“Emergency-off” requires an electrical isolation, e.g. by a central
mains contactor!
After the installation is completed, the operator must check the wiring of the
safety function.
The functional test must be repeated at regular intervals. The time intervals
to be selected depend on the application, the entire system and the
corresponding risk analysis. The inspection interval should not exceed one
year.
Installation/commissioning
During operation