Mitsubishi Electric MELSEC iQ-R Series - Page 1331

11 PROCESS CONTROL INSTRUCTIONS
11.3 Control Operation Instructions
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11
■Control cycle determination (7)
• If the specified control cycle is not reached, the following processing is performed.
• If the control cycle (CT) is reached, "SV setting processing (1)" is performed.
Operation error
Control mode (MODE) Processing
CSV, CCB, CAB, CAS, AUT, LCC,
or LCA
The output value (BW) is held and the S.ONF3 instruction ends.
MAN, CMB, CMV, or LCM "Three-position (on/off) control (5) is processed assuming that the output value (BW) equals the manipulated value
(MV).
Error code Error content
3400H An invalid operation (such as division by zero) is performed.
3402H The value specified by (s1) or (d2) is a subnormal number or NaN (not a number).
3403H An overflow has occurred.
3405H Hysteresis 0 (HS0) is less than 0.
The control cycle (CT) setting is less than 0.
The execution cycle (T) setting is less than 0.
(Hysteresis 1 (HS1) + hysteresis 0 (HS0)) is less than 0.
Hysteresis 1 (HS1) is less than 0.
The value divided the control cycle (CT) by the execution cycle (T) exceeds 32767.