Manual
Double Sheet Detector-series I20
B0069991 / Rev. 1.7
Fault messages, causes and remedies
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107
9.9
Faults concerning Hardware
No. Cause
Remedy
170
AD converter defective.
Call Roland service / exchange the system.
171
Hardware does not fit to Software / Firmware.
Install correct Firmware.
172 Display
defective
Call Roland service / exchange the system.
173
Internal fault SPI-BUS
175
Internal voltage is missing.
9.10
Faults concerning supply voltage
No. Cause
Remedy
176
Operating voltage was below 20 VDC.
Check power supply.
177
Voltage at PLC inputs / outputs too low.
Check power supply for PLC inputs / outputs
if required switch off PLC voltage monitoring in the
system parameters.
If the fault message 177 appears due to a mis-set system configuration (“monitor PLC voltage” though PLC voltage is not
connected), then simultaneously press all 4 operating keys and thus call up the configuration menu directly, and set the
correct values there. Only then the fault conditions are redressed.
9.11
Other faults
No. Cause
Remedy
Unknown error or error description is included in a newer
manual.
• Contact Roland Electronic Service Department.
• Request for newer manual.
