112
Motor brake and stop operation
4.10.2 Brake opening request (BOF) signal (Pr. 281, Pr. 283)
.......Specifications differ according to the date assembled.
to check the SERIAL number.
Interlock can be provided for the electromagnetic brake operation by setting a delay time from output of the Brake opening
request (BOF) signal to start of the actual operation in
Pr. 281 Brake operation time at start
.
Interlock can be provided for the electromagnetic brake operation or the output is shut off after electromagnetic brake
operation completes by setting a delay time from shutoff of the BOF signal to shutoff of the base circuit in
Pr. 283 Brake
operation time at stop
.
The delay time set in
Pr. 281
and
Pr. 283
are enabled even if the BOF signal is not assigned. Set "0" in both
Pr. 281
and
Pr.
283
if the delay time setting is not required.
To use the BOF signal, set "20 (positive logic) or 120 (negative logic)" in
Pr. 190
or
Pr. 192 (output terminal function selection)
to assign the function to an output terminal.
Additionally configure an external circuit, which can also command an emergency stop to the electromagnetic brake.
During a fault occurrence, or while the MRS signal is ON
Use the Brake opening request (BOF) signal to activate the electromagnetic brake.
The electromagnetic brake can be opened while voltage is output so that no drop may occur in a lift application.
Parameter
Number
Name
Initial Value
Setting
Range
Description
281
Brake operation time at
start
0s
0 to 1s
Set a time from output of the BOF signal to start of the actual
operation (the electromagnetic brake open delay time)
283
Brake operation time at
stop
0s
0 to 1s
Set a time from shutoff of the BOF signal to shutoff of the
base circuit (the electromagnetic brake operation delay time)
Start Signal
OFF (during a
stop)
Initial
Magnetic Pole
Detection
Pr. 281
During
Running
During DC
Injection Brake
Operation
Pr. 283
Output
Shutoff *
RY
ON
ON
ON
ON
ON
ON
OFF
RY2
OFF
OFF
ON
ON
ON
ON
OFF
RY3
OFF
OFF
OFF
ON
ON
OFF
OFF
RUN
OFF
OFF
OFF
ON
OFF
OFF
OFF
BOF
OFF
OFF
ON
ON
ON
OFF
OFF
NOTE
Changing the terminal assignment using
Pr. 190
or
Pr. 192 (output terminal function selection)
may affect the other functions. Set
parameters after confirming the function of each terminal.
The BOF signal is not activated while the main circuit capacitor life is being measured.
Brake opening
request (BOF)
Power supply for
electromagnetic brake
Fault output
(ALM)
Emergency stop
B
Electromagnetic brake
STF
Base circuit
Pr. 281
Magnetic pole
detection
100ms
Pr. 283
Pr. 11
Magnetic pole
detection
Voltage output
During DC injection
brake operation
ON
BOF
ON
Brake delay time +
external relay, etc.
∗
Electromagnetic
brake operation
Operation
Operation
Open
ON
RY2
ON
RY3
Open delay time +
external relay, etc.
∗
The release of the electromagnetic brake is delayed for the electromagnetic brake release/operation time and the operation time of the relays,
etc. in external circuits.
Summary of Contents for FR-D720-0.2K-G
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