Allen-Bradley · Logix 5000 Controllers
This fault indicates invalid ratio clamping limits. This occurs when RatioLLimit is less than 0 or RatioHLimit is less than RatioLLimit for the PIDE instruction. The PPID instruction's Sts_ErrRatioLim is set when Cfg_RatioLoLim is greater than Cfg_RatioHiLim. Note that PPID does not set this error condition when Cfg_RatioLoLim is less than 0.
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Access the PIDE or PPID instruction configuration within the programming software
Verify RatioLLimit (PIDE) is set to 0.0 or a greater value
Verify RatioHLimit (PIDE) or Cfg_RatioHiLim (PPID) is numerically greater than RatioLLimit (PIDE) or Cfg_RatioLoLim (PPID)
Ensure Cfg_RatioLoLim (PPID) is less than or equal to Cfg_RatioHiLim