Mitsubishi FR - S500 PID control to, Operation mode switching by external signal

REMARKS

If the MRS signal is on, the operation mode cannot be switched to the PU operation mode when the start signal (STF, STR) is on.

*1. The operation mode switches to the external operation mode independently of whether the start signal (STF, STR) is on or off.

Therefore, the motor is run in the external operation mode when the MRS signal is switched off with either of STF and STR on.

*2. Switching the MRS signal on and rewriting the Pr. 79 value to other than "7" in the PU operation mode causes the MRS signal to act as the ordinary MRS function (output stop). Also as soon as "7" is set in Pr. 79, the signal acts as the PU interlock signal.

(2)Operation mode switching by external signal

1)Preparation

Set "8" (switching to other than external operation mode) in Pr. 79.

Use any of Pr. 60 to Pr. 63 (input terminal function selection) to set the terminal used for X16 signal input.

REMARKS

When terminal assignment is changed using Pr. 60 to Pr. 63, the other functions may be affected.

Check the functions of the corresponding terminals before making settings. For details refer to page 88.

2)Function

This switching is enabled during an inverter stop only and cannot be achieved

during operation.

X16 Signal	Operation Mode
ON	External operation mode (cannot be changed to the PU operation mode)
OFF	PU operation mode (cannot be changed to the external operation mode)

to Refer to to (page 61).

2.10.11 PID control to

The inverter can be used to exercise process control, e.g. flow rate, air volume or

pressure.2 The voltage input signal (0 to +5V or 0 to +10V) or Pr. 93 setting is used as a

set point and the 4 to 20mA DC current input signal used as a feedback value to constitute a feedback system for PID control.

POINT

Made valid by turning on the X14 signal. Use Pr. 60 to Pr. 63 (input terminal function selection) to make assignment.

101