Wittenstein cyber motor SIM2002D-CCSA-CA00-0000-0000, Operating Manual

Page: 46 / 51

Operation Manual simco
®
drive
en-44 4022-D033499 Revision: 11a
10.1 Installation space
A drive amplifier in IP20 design should be installed in a space that will ensure reliable
operation of the drive amplifier. The installation space must meet the requirements of
protection class IP54 at least.
10.2 STO wiring
In the case of single-channel control, if the wiring for the STO signals is situated outside a
control cabinet, it must be routed in a permanent installation and protected from external
damage (e.g. by means of a cable duct or hard conduit). Further instructions for wiring can
be found in the standard DIN EN 60204-1.
10.3 Important information for STO
If the STO function is actuated during operation, the drive will coast
to a stop in an uncontrolled manner and the drive amplifier reports
the "Error_amp_sto_active" fault. Controlled braking of the drive
will not be possible.
•
If an application requires controlled braking before the use of STO,
the drive must first be braked under control and then the STO
function must be triggered with a time delay.
Danger from short-term limited movements when STO function is
activated.
Simultaneous breakdown of two power transistors in the output stage
can cause short-term movement up to 180° / pole pair number of the
motor.
•
Make sure that a limited movement of this kind cannot cause any
damage.
10.4 Intended use of STO
The STO function is designed only for functionally safe switching of a drive to torque OFF
and to prevent restarting. In order to achieve functional safety, the wiring of the safety
circuit must meet the safety requirements of EN 60204, EN 12100, EN 61508 and/or EN
13849-1.
10.5 Improper use of STO
The STO function must not be used if the drive needs to be stopped for the following
reasons:
1. Cleaning, maintenance, or repair work; long interruptions in operation:
In such cases the entire machine or system should be de-energized and secured (at the
main switch).
2. Emergency stop situations:
In emergency stop situations the power supply must be cut off by a line contactor (with
emergency stop pushbutton).