PR1 / PEr / PR0 Message No. 0072 / 0074 / 0075

Parameter & program

Parameter set error (checksum / incompatible)

What does it mean?

PR1: checksum error in parameter set 1. PEr: caution — the Lenze setting is loaded automatically. PR0: error in the parameter set.

Common causes

  • The parameter set is corrupt or incompatible with the loaded software version (e.g. transferred from a higher-power controller).

How to fix it

  • Store the correct parameter set (C0003 = 1) and reload
  • for PEr, store the Lenze setting (C0003 = 1)
  • send the parameter set to us for analysis if necessary.

After troubleshooting: de-energise the device completely (disconnect the 24 V supply and discharge the DC bus) before opening the covers.

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