Fuji Electric FRENIC-HVAC User Manual page 508

J118 PID Control 1 (Upper limit of PID process output)
J119
The upper and lower limiters can be specified to the PID output, exclusively used for PID
control. Set PID control 1 with function codes J118 and J119 and PID control 2 with function
codes J218 and J219. The settings are ignored when terminal command Hz/PID ("Cancel PID
control") is ON and the inverter runs at the reference frequency previously specified. ( E01
to E07, data = 20)
 PID Control 1 (Upper limit of PID process output) (J118, J218)
J118 specifies the upper limit of the PID processor output limiter in %. If you specify
"Inherit," the setting of the frequency limiter (High) (F15) serves as the upper limit.
 PID Control 1 (Lower limit of PID process output) (J119, J219)
J119 specifies the lower limit of the PID processor output limiter in %. If you specify
"Inherit," the setting of the frequency limiter (Low) (F16) serves as the lower limit.
J121 PID Control 1 (Alarm output selection)
J122
J124
The inverter can output absolute-value and deviation alarms associated with PID control. To
output alarms, digital output signals PID-ALM or PV1-ALM and PV2-ALM must be
assigned to any of E20 through E24 and E27 (data = 42 and 201, 203). To generate the "light
alarm," light alarm selection 4 (H184) must be set to the first bit. However, even if light alarm
selection 4 (H184) is not set, the above-mentioned digital output signal can be isolated. Please
refer to pages describing function codes H181 through H184 for a detailed explanation of
setting the light alarm.
J121 and J221 specify the alarm types. J122, J222 and J124, J224 specify the upper and lower
limits for alarms. J223 and J225 set their upper and lower output hiss ranges.
 PID controls 1 and 2 (Alarm output selection) (J121, J221)
J121 and J221 specify the alarm type. The table below lists the alarms selectable.
The physical quantities that can be set depend on the display units and scale.
Data for Data for
J121 J221
0 0
1 1
2 2
(Lower limit of PID process output)
J218 (PID Control 2 (upper limit of PID process output))
J219 (PID Control 2 (upper limit of PID process output))
(Upper level alarm (AH))
(Lower level alarm (AL))
Alarm
Absolute-value alarm While PV < AL or AH < PV, PID-ALM is ON.
Absolute-value alarm Same as above (with Hold)
(with Hold)
Absolute-value alarm Same as above (with Latch)
(with Latch)
6-198
J221 (PID Control 2 (Alarm output selection))
J222 (PID Control 2 (Upper level alarm (AH)))
J224 (PID Control 2 (Lower level alarm (AL)))
Description