Stall Operation Signal (Pr. 737, Pr. 738, Pr. 760, X92 Signal) - Mitsubishi Electric FR-A700-A1 Instruction Manual

4.6.5

Stall operation signal (Pr. 737, Pr. 738, Pr. 760, X92 signal)

Turn ON the stall operation signal (X92) to bring the motor into the stall status and to apply tension to a sheet of paper to be
winded.
Doing this spreads out the sheet of paper tightly before it is winded.
Parameter
Name
Number
737 Stall torque setting
Speed limit for stall
738
operation
Third acceleration time
760
for the main speed
Name Setting
Stall operation signal
X92
(stall signal)
Start command
(STF)
X57
(inertia compensation
acceleration signal)
Torque setting
Torque limit
 Turning ON the X92 (stall operation signal) and a start signal pushes up the speed limit to the Pr. 738 setting in Pr. 760.
 Use Pr. 737 to set the torque for the stall operation. The torque during stall operation is [torque command  Pr. 737 setting].
 Turning ON the X57 or X58 signal cancels the stall operation and sets the torque command and the speed limit back to the
normal settings.
 Mechanical loss compensation is disabled while the X92 signal is ON.
 If the stall operation signal turns ON again during operation, the torque setting changes to the [torque command  Pr. 737 ].
The speed limit also changes to the Pr. 738 setting in Pr. 760.
 The LX, X13, and forced stop signals have higher precedence than the stall operation signal.
 Turning OFF the start signal while the X92 signal is ON decelerates the motor to a stop in Pr. 760.
Setting Range
0 to 200%
0 to 60Hz
0 to 3600s/0 to 360
Terminal Signal
92
X92
Pr. 737
Torque command
Pr. 738
Pr. 738/Pr. 20*Pr. 760
Speed limit during
stall operation
Details of the tension control
Setting
Increments
0.1%
0.01Hz
0.1s/0.01s
Remarks
ON: Stall operation
OFF: Normal operation
Turning ON X92 during operation switches
the torque setting to [torque command
Turning ON X57 or X58 while the stall signal is ON switches
the torque setting to the normal torque setting.
Turning ON X57 or X58 while X92
is ON switches the speed limit to
the normal speed limit.
Normal operation
Speed limit while
Pr. 807 ="3"
Initial
Remarks
Value
20%
1Hz
The setting increment is
determined by the Pr. 21
Acceleration/deceleration time
15s
increments setting. Set the
time period to reach the Pr. 20
Acceleration/deceleration
reference frequency.
Pr. 737 ].
Turning ON X92 during operation
switches the speed limit to Pr. 738
setting in Pr. 760.
Speed limit for
stall operation
4
65