Peter electronic VersiSafe, Инструкции по сборке и пусконаладке

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20 VersiSafe
Potentiometer error
To achieve the required safety when adjusting the voltage threshold for standstill detection, ech
setting function is realised with 2 potentiometers having one common setting knob. If on 2 corres-
ponding potentiometers a different setting is detected the potentiometer error U
an
or t
s
is
displayed.
To remove the failure please try to readjust the potentipometer. Please make sure that you feel
the detent.
Internal device failure
Internal failures are always stored, independent of the reset input X3 and cause the output relays
immediately to switch off, the semiconductor output „ERR“ to switch on and the LED „UH“ to
change it’s colour from reen to red.
Examples for internal failures:
• Failure on safety relays e.g. welded output contacts
• Internal failures on measuring channels and measuring circuits
• Internal failures on control circuits for the safety relays
• failures on setting potentiometers for U
an
and t
s
• Undervoltage failure (LED „ERR“ flashes with failure code 1)
8.2 Failure indication
Failure indication with flash code of LED „ERR“
The flash codes indicate failures caused externally (see diagram on first page).
A series of flash pulses 1-5 followed by a slightly longer space is displayed. The flash code
indicates the type of failure. If several failures are present at the same time only the failure with
the highest priority (lowest flash code) is shown. When this failure is removed the other existing
failures are displayed in the same way according to their priority.
Failure storing / reset (terminals X2-X3)
With the external failures broken wire/offset and feedback circuit the operator can choose
between manual and automatic reset after the failure is removed.
X2-X3 open:
manual reset
X2-X3 closed: automatic reset
Attention:
The a.m. storing function of the external failures broken wire /offset, and feedback circuit
is not a safety function. I.e. in respect to safety aspects it can not be regarded as
guaranteed. The reset for these failures must be therefore regarded as auto reset after
removing the faults.
Internal device failures that could occur in seldom cases (e.g. caused by temporary inter-
ference) can be reset by switching the supply voltage off and on. If a reset is not possible
also if the voltage is applied correctly, the device could be defective and should be sent
back to the manufacturer for examination or repair.