Er40* Error safety output Q2 or Q3.
Q2, Q3 connected together or to other negative voltage.
Q2, Q3 has too high capacitive load.
“K” button
Er41* Error output Q2 or Q3. Overload or connected to foreign
positive voltage.
“K” button
Er42* Error relay output. No answer from internal relay
monitoring when output is off.
“K” button
Er43* Error relay output. (Self test of transistors) Reboot
Er44* Error relay output. Internal relay does not switch on. “K” button
Er45 Analogue functions not calibrated. System must be calibrated.
Can be reset with “K” button but
analogue value will be 0.
Er46 Analogue input error. **(See below) Automatically reset
Er47 Positive voltage on Q2 and/or Q3. Automatically reset
*Combined with LED flashing for the affected I/O.
**Additional information can be retrieved via Pluto Manager.
CPU faults
Er50* Input data difference between processor A and B.
Processor A and B reads an input differently. The fault is
often caused by a bad sensor.
Reboot
Er51 Output data difference between processor A and B.
Processor A and B sets a global variable differently.
(Q0..Q3, GM0..11). **(See below)
Reboot
Check PLC-program
Er52 No answer from any internal relay when output is off.
(Both relays stuck)
Reboot
Er58 AS-i safety code table CRC error. Reboot,
Teach AS-i safety codes
Er59 Calibration analogue functions CRC fault. Reboot
Er60 System error Twin self test monitoring. Reboot
Er61 System error Timer IRQ monitoring. Reboot
Er62 System error Internal serial communication. Reboot
Er63 Boot-flash CRC Reboot
Er64 OS-flash CRC Reboot,
Reload operating system (OS)
Er65 Plc-flash CRC Reboot, Reload PLC program
Er66 5 volt under/over voltage monitoring **(See below) Reboot
Er67 CPU-test error Reboot
Er68 Ram-test error Reboot
Er69 Scan cycle time over run (PLC program to big). Reboot
Er70 System, sum of system and stack monitoring. Reboot
Er71 Pluto used for IDFIX writing. Normal operation ceased. Reboot
Er72 System error. No communication AUX processor. Reboot
Er73 System error. Wrong program version/CRC error. Reload operating system (OS)
Er74 Remanent memory error. Reboot
*Combined with LED flashing for the affected I/O.
**Additional information can be retrieved via Pluto Manager.
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