SEW-Eurodrive MOVIDRIVE MDA90A-0160-503-X-S00

9
Functional safety
Integrated Safety Technology
Operating Instructions – MOVIDRIVE
®
modular
250
• If the STO function detects a discrepancy between both channels, the PWM sig-
nals are inhibited. The inhibit can be revoked by a 24V reset, or by a device reset
if F_STO_P1 and F_STO_P2 are not controlled with 24V.
• The STO drive safety function can be activated externally e.g. via an external
safety device via the STO input.
9.2.3 Schematic representation of the safety concept
Uz+
Uz-
[2]
[3]
[4]
[5]
[1]
9007214467507851
[1] STO function
[2] Drive controller
[3] Diagnostics and inhibiting unit
[4] Safety-related connection
[5] Motor
24748536/EN – 11/2017