SOMMER RDC vision - Page 55

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Fault Possible cause Corrective action
/ control unit is not
working.
No mains power supply.
Status LED does not light up.
• Switch on main switch.
• Check fuse of mains power supply.
• Control unit defective, replace it.
Door cannot be
opened/closed with
handheld transmitter
or button, or only dead
man mode is possible.
Safety device or jumper not connected,
depending on model.
• Connect the necessary safety devices.
• Install jumpers.
Controlunitexecutingself-test,statusLED
off.
• Waitforself-testtonish,approx.
4 seconds.
Photocellinterrupted,defectiveornot
correctlyrecognised.SafetyLEDashes
twice intermittently.
• Remove obstacle.
• Check photocell, e.g., power supply.
Electrical safety contact strip activated,
defective or not correctly recognised. Safety
LEDashesonceintermittently.
If a change was made from an optical
safety contact strip to an electrical 8k2
safety contact strip or vice versa.
• SetDIPswitch8to"OFF"andleaveit
in this position for a few seconds.
• SetDIPswitch8to"ON"again.
• Re-programruntime
(see chapter 4.4 Setting run time /
runtime monitoring).
• Remove obstacle.
• Check electrical safety contact strip.
*fortestpurposes,replacethesafety
device with an 8k2 resistor. Then perform
a power on reset or drive to an end position
(self-test)
Optical safety contact strip activated,
defective or not correctly recognised.
SafetyLEDashesonceintermittently.
• Remove obstacle.
• Check optical safety contact strip.
*fortestpurposes,replacethesafety
device with an 8k2 resistor. Then perform a
power on reset or drive to an end position
(self-test)
Permanentsignalappliedatapulseinput. • Connect button correctly or replace it.
• Timer on pulse input.
EmergencySTOPactive.SafetyLEDlights
up continuously.
• UnlockemergencySTOP