Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 548

Pr. Name
6 Multi-speed setting (low
D303 speed)
22 Stall prevention operation
H500 level
48 Second stall prevention
H600 operation level
Stop-on contact/load torque
270
high- speed frequency control
A200
selection
Stop-on contact excitation
275
current low-speed scaling
A205
factor
276 PWM carrier frequency at
A206 stop-on contact
*1 The setting range of FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower
*2 The setting range of FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher
 Connection and operation example
•Sink logic
MCCB
Power
supply
Forward rotation command
High-speed operation command
Middle-speed operation command
Stop-on contact selection 0
Stop-on contact selection 1
∗ The input terminal used differs according to the Pr.180 to Pr.189 settings.
 Setting the stop-on-contact control
• Make sure that the inverter is in External or Network operation mode. (Refer to
• Select either Real sensorless vector control (speed control) or Advanced magnetic flux vector control.
• Set "1, 3, 11 or 13" in Pr.270 Stop-on contact/load torque high- speed frequency control selection.
• Set the output frequency for stop-on-contact control in Pr.6 Multi-speed setting (low speed).
Set the frequency as low as possible (about 2 Hz). If a frequency higher than 30 Hz is set, it operates with 30 Hz.
• When both the RT and RL signals are switched ON, the inverter enters the stop-on-contact control, and operation is
performed at the frequency set in Pr.6 independently of the preceding speed.
Setting
Initial value
range
10 Hz 0 to 590 Hz Set the output frequency for stop-on-contact control.
150% 0 to 400%
Set the stall prevention operation level for stop-on-contact control.
150% 0 to 400%
The smaller value set in either Pr.22 or Pr.48 has priority.
0 Normal
1 Stop-on-contact control
2 Load torque high-speed frequency control (Refer to
Stop-on contact + load torque high speed frequency control (Refer
3
0
to page
11 Stop-on-contact control
Stop-on contact + load torque high
13 speed frequency control
(Refer to
Set the force (holding torque) for stop-on-contact control.
0 to 300%
Normally, set the scaling factor between 130 to 180%.
9999
9999 Not compensated.
Set a PWM carrier frequency for stop-on-contact control.
*1
0 to 9
For Real sensorless vector control, the carrier frequency is always 2
kHz when the setting value is 0 to 5 and always 6 kHz when the
*2
0 to 4
9999
setting value is 6 to 9. (Valid at the output frequency of 3 Hz or less.)
9999
As set in Pr.72 PWM frequency selection.
MC
Mechanical
brake
U
R/L1
V
S/L2
Motor
W
T/L3
STF
RH∗
RM∗
RL∗
RT∗
SD
Description
549)
E.OLT is invalid under stop-
on-contact control
page 549.)
Normal mode
Pr.4
Pr.5
Pr.6
0
(a) (b)
RH
ON
RM
OFF ON
RL OFF
RT
OFF
∗ Goes into stop-on-contact control mode when
both RL and RT switch on.
RL and RT may be switched on in any order
with any time difference
(a): Acceleration time(Pr.7)
(b): Deceleration time(Pr.8)
(c): Second deceleration time(Pr.44/Pr.45)
page 370.)
5.14 (A) Application parameters
1
2
3
page 549.)
4
5
6
7
8
9
Stop-on contact
control mode
10
Time
(c)
ON
∗
ON
547
5. PARAMETERS