Mitsubishi Electric FR-A800, Instruction Manual

Page: 670 / 1042

(A) Application parameters Parameters
5 - 490
The setting range of FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower
The setting range of FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher
Connection and operation example
Pr. Name
Initial
value
Setting
range
Description
6
D303
Multi-speed setting (low
speed)
10 Hz 0 to 590 Hz Set the output frequency for stop-on-contact control.
22
H500
Stall prevention operation
level
150% 0 to 400%
Set the stall prevention operation level for stop-on-
contact control.
The smaller value set in either Pr. 22 or Pr. 48 has
priority.
48
H600
Second stall prevention
operation level
150% 0 to 400%
270
A200
Stop-on contact/load
torque high-speed
frequency control
selection
0
0 Normal operation
1 Stop-on-contact control
2
Load torque high-speed frequency control (Refer to
page 5-494.)
3
Stop-on c load torque high speed frequency
control (Refer to page 5-494)
11 Stop-on-contact control
E.OLT is invalid
under stop-on-
contact control
13
Stop-on c load torque high
speed frequency control
(Refer to page 5-494.)
275
A205
Stop-on contact excitation
current low-speed
multiplying factor
9999
0 to 300%
Set the force (holding torque) for stop-on-contact
control.
Normally, set it from 130 to 180%.
9999 No compensation.
276
A206
PWM carrier frequency at
stop-on contact
9999
0 to 9
Set a PWM carrier frequency for stop-on-contact
control.
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 setting value is 6 to 9.
(Valid at the output frequency of 3 Hz or less.)
0 to 4
9999 As set in Pr. 72 "PWM frequency selection".
I002677E
Fig. 5-233: Connection example
MCCB
R/L1
S/L2
T/L3
STF
RH
∗
RM
∗
RL
∗
RT
∗
SD
U
V
W
MC
Power
supply
Sink logic
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.
Motor
Mechanical
brake