Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 364 / 608

Selection of operation mode and operation location Parameter
6 - 210
External operation mode (Pr. 79 = 0, 2)
Select the external operation mode when performing operation by providing a frequency setting po-
tentiometer, start switch, etc. externally and connecting them to the control circuit terminals of the in-
verter.
Basically, parameter changing is disabled in external operation mode. (Some parameters can be
changed. Refer to Tab. 6-1 for the parameter list.)
When "0" or "2" is selected for Pr. 79, the inverter enters the external operation mode at power on.
(When using the network operation mode, refer to section 6.18.2).
If you don’t need to change the parameter settings frequently you can set the unit to external mode
permanently by setting Pr. 79 to "2". (If you need to change parameter settings frequently external
mode should be activated by setting Pr. 79 to "0". Then the frequency inverter will switch to external
mode automatically when the power is switched on but it can be switched to PU mode by pressing
the PU/EXT key. You can then make the parameter changes in PU mode and switch back to external
mode again afterwards by pressing PU/EXT again.)
The STF and STR signal are used as a start command, and the terminal 2, 4, multi-speed setting, JOG
signal, etc. are used as frequency setting.
Fig. 6-105:
External operation mode
I002132E
5
10
2
STF
STR
PC
Forward rotation
start
Reverse rotation
start
Frequency setting
potentiometer
Inverter