Current Control (Pr. 82, Pr. 83); 3.4.21 Wiring And Configuration Of Pu Connector - Mitsubishi Electric FR-HC2-7.5K Instruction Manual

3.4.20 Current control (Pr. 82, Pr. 83)

This function controls current to be as commanded.
Operation should be stable in the initial setting, but adjust the following parameters when current fluctuation occurs due
to the environment such as power source condition.
Parameter
Name
Number
Current control proportional
82
gain
83 Current control integral gain
Adjust the fluctuation range of current by setting Pr. 80.

Increasing the setting value reduces the current fluctuation caused by external disturbance.
Adjust the recovery time to the commanded current after a current fluctuation by setting Pr. 83.

Increasing the setting value shortens the recovery time from the current fluctuation caused by external disturbance.
NOTE
 Setting Pr. 82 too large makes the operation unstable.
 Setting only Pr. 83 too large makes the operation unstable.

3.4.21 Wiring and configuration of PU connector

Using the PU connector, you can perform communication operation from a personal computer, etc.
When the PU connector is connected with a personal, FA or other computer by a communication cable, a user program can
run and monitor the converter or read and write to parameters.
(1) PU connector pin-outs
RS-485 terminal block
cannot be used.
NOTE
 Pins No. 2 and No. 8 provide power to the operation panel or parameter unit. Do not use these pins for RS-485
communication.
 Do not connect the PU connector to the computer's LAN board, FAX modem socket or telephone modular connector.
The product could be damaged due to differences in electrical specifications.
Initial
Setting Range
Value
Set the proportional gain for the current control.
100% 0 to 200% Increasing the setting value reduces the current fluctuation
caused by external disturbance.
Set the integral gain for the current control.
100% 0 to 200% Increasing the setting value shortens the recovery time from
the current fluctuation caused by external disturbance.
Number
Converter
(Receptacle side)
Front view
8)
to
1)
Description of parameters
Description
Pin
Name
1) SG
(connected to terminal 5)

2) Operation panel power supply
3) RDA Converter receive+
4) SDB
5) SDA
6) RDB Converter receive-
7) SG
(connected to terminal 5)

8) Operation panel power supply
Description
Earth (ground)
Converter send-
Converter send+
3
Earth (ground)
95