Mitsubishi NZ2GFCF-D62PD2 User Manual page 100

(2) Counting range of the ring counter
One of the following three counting ranges of the ring counter is determined by the relationship among CH
Present value (RWr10 to RWr11, RWr28 to RWr29), CH Ring counter lower limit value (RWw10 to RWw11,
RWw28 to RWw29), and CH Ring counter upper limit value (RWw12 to RWw13, RWw2A to RWw2B) at the
time when CH Count enable command (RY24, RY3C) is turned on or when the preset/ replace function is
performed.
• Ring counter lower limit value ≤ Present value ≤ Ring counter upper limit value (This range is normally
used.)
• "Present value < Ring counter lower limit value" or "Ring counter upper limit value < Present value"
• Ring counter lower limit value = Ring counter upper limit value
Set the ring counter upper limit value and the ring counter lower limit value according to the condition "Ring
counter lower limit value ≤ Ring counter upper limit value". When CH Count enable command (RY24, RY3C) is
turned off then on with the condition not satisfied, CH Ring counter upper/lower limit value setting error (error
code: 210 ) is stored in CH Latest error code (RWr22, RWr3A) and counting does not start. To start counting,
H
set the ring counter upper limit value and the ring counter lower limit value according to the condition "Ring
counter lower limit value ≤ Ring counter upper limit value" and turn off then on CH Count enable command
(RY24, RY3C). The OFF time must be longer than ΔT
For ΔT
, refer to Page 283, Appendix 4.
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