Mitsubishi Q Series User Manual

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MELSEC-Q
3 SPECIFICATIONS
3.2 Function Summary
The Q62HLC function summary is shown in Table 3.6.
Table 3.6 Q62HLC function summary
Item Specification Reference
Auto tuning function • The loop control module automatically sets the optimal PID constants. 3.2.1
Auto tuning mode setting function
• Sets the auto tuning mode according to the control target to use by setting AT (auto
tuning) differential gap and AT additional lag.
3.2.2
Forward action/reverse action
selection function
• Heat control (reverse action) or cooling control (forward action) can be selected and
controlled.
3.2.3
RFB limiter function
• Limit the manipulation value overshoot which frequently occurs when the set value (SV)
is changed or control target is changed.
3.2.4
Sensor compensation function
• Compensates a difference between measured values and actual temperature,
humidity, pressure, flow rate or others, if any, according to the measured status, etc.
3.2.5
Unused channel setting function • Sets the PID operation for channels that do not control to "not execute." 3.2.6
PID control forced stop function • Stops the PID operation for channels that is performing temperature adjustment. 3.2.7
Loop disconnection detection
function
• A function to detect errors in the control system (control loop) caused by a load (heater)
disconnection, abnormal external operation device (such as magnet relay), or a Input
Sensor disconnection.
3.2.8
Data storage in FeRAM function
• By backing up the buffer memory contents to FeRAM, the load of sequence program
can be reduced.
3.2.9
Alert function • Monitors the process value (PV) and alerts the user. 3.2.10
Control output setting for CPU
stop error occurrence function
• This function continues/stops control output at CPU stop error occurrence. 3.2.11
Program control function • Performs the control changing the set value, following the time schedule 3.2.12
Cascade control function • Performs the control using the channel 1 as master and the channel 2 as slave. 3.2.13
Scaling function • Scales the set value and stores it in the buffer memory. 3.2.14
Simplified analog I/O input
function
• Uses the Q62HLC as simplified thermocouple/micro voltage input module analog-digital
converter module, digital-analog converter module by monitoring the set value and
manually setting the manipulated value.
3.2.15
Online module change function • A module change is made without the system being stopped. Chapter 7
Control function of Q62HLC
• Controls the Q62HLC by the output signal of Q62HLC and the settings in the buffer
memory.
3.2.16

Mitsubishi Q Series Specifications

General

Brand	Mitsubishi
Model	Q Series
Category	Control Unit
Language	English