Fuji Electric FRENIC-AQUA series, User Manual

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- Switchover of PID control
Different from PID control 1, assigned values and feedback values can be input for PID
control 2. PID control 1 and PID control 2 can be switched. Signals (PID channel
switchover PID2/1) assigned to the digital input terminal from external equipment are to be
used to switch.
Input signal PID2/1 PID control to be selected
OFF PID control 1
ON PID control 2
Switching PID control 1 and PID control 2 causes the codes shown in the table below to be
switched.
Control Code Name PID Control 1 PID Control 2
Operation selection J101 J201
Command selection J102 J202
Feedback selection J103 J203
Deviation selection J104 Disabled under PID control 2
Display units J105 J205
Max. scale, min. scale J106, J107 J206, J207
P (Gain) J110 J210
I (Integral time) J111 J211
D (Differential time) J112 J212
Feedback filter J113 J213
Anti-reset windup J114 J214
PID output limiter max., min. J118, J119 J218, J219
Alarm output J121, J122, J124 J221 through J225
Feedback error detection J127 through J131 J227 through J231
PID multistep command J136 through J138 PID control 1 settings are operational even
for PID control 2
Boost function J143 through J147 Other than J247, PID control 1 settings are
operational
Insufficient water stoppage J149 through J154
J156 through J160 J249 through J251
J256 through J260
Flow input sensor selection J163 through J166 PID control 1 settings are operational even
for PID control 2
Control of maximum starts per hour J168, J169 PID control 1 settings are operational even
for PID control 2
Drought protection J176 through J180 J276 through J280
Large water quantity protection J182 through J186 Disabled under PID control 2
Filter clogging prevention/anti-jam J188 through J195 Filter clogging prevention is disabled under
PID control 2.
For anti-jam, PID control 1 settings are
operational even for PID control 2.