Phoenix Contact 1201132, User Manual

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CONTACTRON Speed Starter
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PHOENIX CONTACT 109908_en_00
13.2 Safety information
– The safety function must be requested once every 24 hours in order to comply with
Category 4 PL e safety integrity.
– The safety function must be requested once every 3 months in order to comply with the
safety integrity of Category 3 PL e.
– The safety function must be requested once every year in order to comply with the
safety integrity of Category 3 PL d.
– An inadmissible restart may occur after removal of the STO function. This must be
blocked by a higher-level safety system.
– A double failure may result in an unintentional jerk. The angle of rotation depends on
the number of poles of the selected drive and on the gear ratio of the selected gearbox.
– The device may not be exposed to mechanical or thermal influences that exceed the
limits as described in the operating instructions. To protect against mechanical or
electrical damage, install the device in an appropriate housing with a suitable degree of
protection (minimum IP54) in accordance with IEC/EN 60529.
– For the STO+ and STO- inputs, suitably insulated fixed wires or stranded wires with end
ferrules have to be used.
– The requirements of IEC/EN 61800-5-2 must be observed in order to reliably exclude
short circuits and cross-connections of the safety-relevant cables.
– Only qualified personnel may install and commission safety technology.
– The inputs STO+ and STO- may only be operated from a single SELV/PELV 24 V
supply.
– The maximum length and the maximum frequency of the light and dark test impulses
are defined in Table A-4 “Digital input (STO+ / STO-)”
– Electrical parameters see Table A-4 “Digital input (STO+ / STO-)”
13.3 STO input
In order to operate the motor that is connected to the CONTACTRON Speed Starter, you
must issue the release to the device via the STO input.
As soon as a valid signal is applied to the STO input (terminals STO+ and STO-), the device
receives control commands and the motor can be operated.
With non-safety-related applications, you can also issue the release by bridging terminals
(STO-) and (GND) and terminals (STO+) and (24V OUT).