IDEC MicroSmart Pentra - Manual (Page 148)

A PPENDIX
FC5A MicroSmart PID Module User’s Manual FC9Y-B1283 9-1
9: A
PPENDIX
This chapter describes the function references, output actions, and factory default settings of the PID module.
PID Module Function References
Control Action
PID control [with auto-tuning (AT)]
PI control
PD control (with auto-reset)
P control (with auto-reset)
ON/OFF control
Proportional term
(P) Proportional band:
When input range unit is Celsius: 0 to 10000°C
(Range with a decimal point: 0.0 to 1000.0°C)
When input range unit is Fahrenheit: 0 to 10000°F
(Range with a decimal point: 0.0 to 1000.0°F)
When input is voltage/current: 0.0 to 1000.0%
Proportional gain: 0.00 to 100.00%
Note: The control action will be ON/OFF control when
proportional term is 0.
Integral time (I) 0 to 10000 seconds
Derivative time (D) 0 to 10000 seconds
Control period 1 to 120 seconds
ARW 0 to 100%
Reset When input range unit is Celsius:
-100.0 to 100.0°C
When input range unit is Fahrenheit:
-100.0 to 100.0°F
When input is voltage/current:
-1000 to 1000
Output ON/OFF
hysteresis When input range unit is Celsius:
0.1 to 100.0°C
When input range unit is Fahrenheit:
0.1 to 100.0°F
When input is voltage/current:
1 to 1000
Output
manipulated
variable (MV)
upper limit,
lower limit When output type is relay or voltage:
Upper limit:
Output manipulated variable lower limit value to 100%
Lower limit:
0 to output manipulated variable upper limit value
When output type is current:
Upper limit:
Output manipulated variable lower limit value to 105%
Lower limit:
-5 to output manipulated variable upper limit value
Output
manipulated
variable
rate-of-change 0 to 100%/sec
Alarm
The alarm range can be configured with the alarm value. When the process
variable (PV) goes outside of the range, the alarm output turns on or off.
Alarm type can be selected from upper limit alarm, lower limit alarm, upper/lower
limits alarm, upper/lower limit range alarm, process low alarm, process high
alarm, upper limit alarm with standby, lower limit alarm with standby, upper/lower
limits alarm with standby, and no alarm action.
For details about the alarm, see pages 6-26 to 6-28.
Setting accuracy Same with input error (See page 2-4)
Action ON/OFF action
Hysteresis When input is thermocouple or resistance thermometer:
0.1 to 100.0°C (°F)
When input is voltage/current:
1 to 1000
Output Operating status (See page 5-9)
Alarm Delay time 0 to 10000 seconds