8.4 Adjustment level (l.adj)
8-19
Setting data
● Related information
"4.12 Starting and stopping control" (P.4-27)
• The MV change rate limit sets the maximum allowed change in the
MV (or the opening on a position proportional control type) per
second. If a change occurs in the MV that exceeds this limit, the MV
will be changed at the set rate limit until the required change is
attained. When set to "0.0", the function is disabled.
• For standard control, use "MV change rate limit (heating)". "MV
change rate limit (cooling)" cannot be used.
• For heating/cooling control, the MV change rate limit can be set
separately for heating and cooling. Use "MV change rate limit (heat)"
for heating and "MV change rate limit (cooling)" for cooling.
• The MV change rate limit cannot be used in the following situations:
• Manual mode
• AT is running
• During ON/OFF control (P=0.00)
• During stop (during "Manipulated variable at stop" output)
• During "MV at PV error" output
● Related setting data
"PID∗ Proportional band" (PID setting level) (P.8-31)
"MV change rate limit mode" (Expansion control setting level) (P.8-78)
Reference
Reference
MV change rate limit (heating)
MV change rate limit (cooling)
orl
corl
Advanced PID control (Proportional band ≠ 0.00)
CH
l.adj
Function
Setting
Setting data Setting range Units
Default value
MV change rate limit (heat) 0.0 to 100.0 %/sec 0.0
MV change rate limit (cooling) 0.0 to 100.0 %/sec 0.0
Reference
Reference
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