Mitsubishi Electric FR-D720S SC EC, Инструкция по эксплуатации

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Parameter Function assignment of external terminals
FR-D700 SC EC 6 - 91
6.9.2 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 selected.
The above parameter can be set when Pr. 160 = 0.
Output shutoff signal
Turning on the output shutoff signal (MRS) during inverter running shuts off the output imme-
diately. When using the MRS signal, set "24" to any of Pr. 178 to Pr. 182 to assign the function
.
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
178–182 Input terminal
function selection 6.9.1
2
Normally closed input (NC contact input
specifications)
4
External terminal: Normally closed input
(NC contact input specifications)
Communication: Normally open input
Fig. 6-43:
Output shutoff signal
I001325C
Motor coasts to
stop
Time
MRS
STF (STR)
Output frequency
ON
ON