halstrup-walcher PSW 31 14 Series, Оригинальное руководство пользователя

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Instruction Manual PSx3xxPN-STO
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If a PSx3xx is operated for more than 1-2 seconds in regenerative mode without
consumer of the generated energy, this damages the internal protection diode and
the PSx3xx is defective.
4.16 Safe Torque Off
The PSx3xx-STO positioning system is equipped with an emergency stop function
(STO
– safe torque off). With the STO input, the moment of torque of the electric
motor can be switched off.
The following figure illustrates the basic wiring of the PSx3xx-STO:
Safe system state;
The positioning system has no movement torque, and no holding
torque, which is generated from the commutation of the electric motor.
(However there might be a self-locking, resulting from the gear or the
optional break)
Uncontrolled Shut-down/stop, Stop Category 0, IEC 60204-1
Safe Torque Off, 4.2.3.2 DIN EN 61800-5-2 [4])
The safe system state is quit autonomously when the STO input signal
is no longer active.
For failures, which are detected from the diagnostic function a quitting
of the safe system state is prohibit until a power-down / power-up
sequence. This state is signalled to the user by bit 9 in the status word.
An in depth description of the STO functionality, the safety relevant
figures, the function and use of the test pulses (OSSD) can be read in
the safety manual (Document No. 7100.006654).