Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 273 / 608

Parameter Function assignment of external terminals
FR-E700 SC EC/ENE 6 - 119
6.10.2 Inverter output shutoff signal (MRS signal, Pr. 17)
The inverter output can be shut off from the MRS signal. The logic of the MRS signal can also be se-
lected.
The above parameter can be set when Pr. 160 "User group read selection" = 0.
Output shutoff signal
Turning on the output shutoff signal (MRS) during inverter running shuts off the output immediately.
Terminal MRS may be used as described below:
●
When mechanical brake (e.g. electromagnetic brake) is used to stop motor.
The inverter output is shut off when the mechanical brake operates.
●
To provide interlock to disable operation by the inverter.
With the MRS signal on, the inverter cannot be operated if the start signal is entered into the
inverter.
●
Coast the motor to a stop.
When the start signal is turned off, the inverter decelerates the motor to a stop in the preset
deceleration time, but when the MRS signal is turned on, the motor coasts to a stop.
Pr. No. Name Initial Value
Setting
Range
Description Parameters referred to
Refer to
Section
17
MRS input selection 0
0 Normally open input 178–184 Input terminal
function selection
6.10.1
2
Normally closed input (NC contact input
specifications)
4
External terminal: Normally closed input (NC
contact input specifications) Communication:
Normally open input
Fig. 6-51:
Output shutoff signal
I001325C
Motor coasts to
stop
Time
MRS
STF (STR)
Output fr
equenc
y
ON
ON