SEW-Eurodrive MOVIDRIVE MDA90A-0640-503-X-S00

9
Functional safety
Connection variants
Operating Instructions – MOVIDRIVE
®
modular
260
9.4.2 Requirements
Use of safety relays
The requirements of the manufacturers of safety relays (such as protecting the output
contacts against welding) or other safety components must be strictly observed. For
cable routing, the basic requirements apply as described in this documentation.
For connecting the application inverter with the safety relays, observe the installation
requirements in chapter "Requirements on the installation"(→2255).
All instructions by the manufacturer on the use of safety relays for specific applications
must also be observed.
Use of safety controllers
The switch-off test pulse of the used safe digital outputs (F-DO) must be ≤1ms and
another switch-off test pulse must only occur 2ms later.
<1 ms >2 ms
t
[1]
[2]
15214338827
[1] High
[2] Low
INFORMATION
If the safety-related control voltage at X6 is switched off (STO activated), the specific-
ations in chapter "Requirements on the external safety controller"(→2256) must be
adhered to in regard to the test pulses.
INFORMATION
If F_STO_P1 (X6:1), F_STO_P2 (X6:3) is connected to DC24V, and F_STO_M is
connected to GND, STO is deactivated.
24748536/EN – 11/2017