Product description
Wieland Electric GmbH | BA000966 | 07/2016 (Rev. C)
Limited short-circuit detection in the input circuits
895385995-1
ATTENTION
• One SP-COPx has four test signal generators T1 – T4.
• Short-circuits between test signal generators of an SP-COPx are detected. Between diffe-
rent modules the short circuit detection is then only ensured if the test gaps of the test
signal generators are < 4 ms, the test periods ≥ 200 ms. In addition, the short circuit de-
tection is only ensured if no more than 9 modules (SP-SDI / SP-SDIO) have been plugged
in. Short-circuits after 24 V
DC (after high) at inputs that are connected to test outputs are
detected independently of the length of the test gaps.
Make note of this during wiring (e.g. through separate routing or protected lines)!
Deactivating the test pulses at the outputs of the SP-COP1
888356491
It is possible to deactivate the test pulses at one or more output pairs. The outputs are combi-
ned into two output pairs with the SP-COP1. Q1/Q2 and Q3/Q4. The test pulses each act upon
the two outputs of an output pair.
ATTENTION
Switching off the test pulses at one of the two outputs of an output pair will switch off
the test pulses of the entire output pair!
Deactivating the test pulses at one or more safety outputs of an SP-COP reduces the safety
parameters of both safety outputs of the respective output pair of this module.
• Be aware of this in order to ensure that your application corresponds to an appropriate
risk analysis and risk avoidance strategy.
• You can find more detailed information on the safety parameters here:
Safety technology
reference values [ch. 12.2, p. 73]
ATTENTION
Be sure to use protected or separate cabling!
• If you deactivate the test pulses at one or more safety outputs, short-circuits at other
output circuits cannot be detected. This affects the safety function!
• In the event of a short-circuit after 24 V, it will no longer be possible to switch off the
output.
Furthermore, it will not be possible to prevent reverse current from going into a switched-
off output, which will influence the capability of switching off the outputs.
ATTENTION
Carry out cyclic tests when the test pulses at one or more safety outputs are deacti-
vated!
Once you deactivate the test pulses at one or more safety outputs, conduct the following
tests once a year:
• Switch off all of the safety outputs without test pulses simultaneously for at least one
second via the logic program of the COMPACT module.
OR
• Restart the samosPRO system by switching off the supply voltage.
You will thus deactivate the test pulses at an output of the SP-COP1:
Connect an output element to the SP-COP module.
Using the right mouse key, click on the output element and select the
command in
the context menu.
Deactivate the
Activation of test pulses of this output
option. The test pulses of this out-
put will be switched off. A corresponding note will be displayed in the hardware configura-
tion area under the respective SP-COP module.
Single-channel use of outputs on the SP-COP1
888357515
Be sure to consider a potential brief switch to high with single-channel safety outputs!
In the event of an internal hardware error, single-channel safety outputs can switch to high
once for 10 ms after the error has been detected.
• Consider this during your risk analysis and reduction strategy.
Otherwise, there is a hazard for the operator of the machine.
To Next Page
Loading...
