SEW-Eurodrive MOVIPRO PHE Series, Руководство по эксплуатации, Страница: 17 / 100

3
Functional safety
Integrated safety technology
Operating Instructions – MOVIPRO
®
PHE..B-A15-.1X0..B-00
17
INFORMATION
The motor coasts to a halt or is stopped mechanically.
Controlled standstill is preferred, if possible.
SS1(c) – Safe Stop 1
When the SS1(c) function is active, the drive inverter brings the motor to a standstill
electrically. The drive safety function STO is triggered after a specified, safety-related
time.
This drive safety function corresponds to a controlled stop of the drive according to
EN 60204-1, stop category 1.
t
2
t
1
t
V
∆
t
9007201225618443
= Drive safety function monitored
= Drive safety function trips
v = Speed
t = Time
t
1
= Point of time when SS1(c) is activated and motor deceleration is triggered.
t
2
= Point of time when STO is triggered.
Δt = Safety-relevant period of time
INFORMATION
• The SS1(c) function does not monitor the stopping of the drive.
• The safety-relevant period of time Δt allows the drive to come to a stop. In the
event of a fault, the drive does not come to a stop and becomes de-energized at
the time t
2
(STO).
23576855/EN – 10/2017