SS2-r – Safe Stop 2 with monitoring of the deceleration ramp
When the SS2-r safety sub-function is active, the motor is brought to a standstill electrically. The deceleration is monitored. The position must be safely monitored after standstill (SOS function according to EN 61800‑5‑2). The STO safety sub-function will be triggered if the deceleration value is exceeded while stopping or movement occurs in an idle state. After the STO safety sub-function has been triggered, the idle state has to be ensured, for example, by a mechanical brake.
The SS2-r safety sub-function corresponds to a controlled stop of the drive according to EN 60204‑1, stop category 2.
= | SS2-r safety sub-function monitored | |
| = | STO safety sub-function active |
v | = | Speed |
t | = | Time |
t1 | = | Point in time when SS2-r is activated and motor deceleration is triggered. |
t2 | = | Point in time at which SOS is activated. |
