Mitsubishi FR-A800

(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
PARAMETERS
303
5
GROUP
F
5.8.7 Lift operation (automatic acceleration/
deceleration)
 The setting range for the FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower.
 The setting range for the FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher.
Lift operation (Pr.292 = "5, 6")
• When Pr.292 Automatic acceleration/deceleration is set to "5" or "6", the lift operation is selected, and each setting is
changed, as shown in the table below.
• During power driving, sufficient torque is generated, and during regenerative driving and during driving with no load, the
torque boost setting is adjusted automatically so as not to activate the overcurrent protective function by overexcitation.
• If the lift has a load in which the rated current of the inverter is exceeded, the maximum torque may be insufficient.
For a lift without counterweight, setting Pr.14 Load pattern selection to "2 or 3" (for lift load) and setting Pr.19 Base
frequency voltage appropriately give the maximum torque a greater advantage than when selecting the lift operation.
NOTE
• The stall prevention operation level is automatically lowered according to the cumulative value of the electronic thermal O/L
relay so as to prevent an inverter overload trip (E.THT, E.THM) from occurring.
The inverter can be operated according to the load pattern of the lift with counterweight.
Pr. Name
Initial
value
Setting range Description
292
F500
Automatic acceleration/
deceleration
0
0 Normal operation
1
Shortest acceleration/deceleration
(without brakes)
(Refer to
page 300.)11
Shortest acceleration/deceleration
(with brakes)
3 Optimum acceleration/deceleration
5
Lift operation 1 (stall prevention operation level
150%)
6
Lift operation 2 (stall prevention operation level
180%)
7, 8 Brake sequence 1, 2 (Refer to page 473.)
61
F510
Reference current 9999
0 to 500 A

Set the reference current during shortest (optimum)
acceleration/deceleration.
0 to 3600 A

9999 Rated output current value reference of the inverter
64
F520
Starting frequency for
elevator mode
9999
0 to 10 Hz Set the starting frequency for the lift operation.
9999 Starting frequency is 2 Hz.
Name Normal operation
Multi-rating
(Pr.570)
Lift operation (Pr.292)
5 6
Torque boost Pr.0 (6/4/3/2/1%) Changes according to the output current (as shown below)
Starting frequency Pr.13 (0.5 Hz) Pr.64 (2 Hz) Accelerate after 100 ms hold.
Base frequency voltage Pr.19 (9999) 220 V class (440 V class)
Stall prevention operation level Pr.22 (150%), etc.
0(SLD) 110% 115%
1(LD) 120% 140%
2(ND)Initial value 150% 180%
3(HD) 200% 230%
V/F
V/F
V/F
6%
Pr.292 = "5"
Driving
current
(%)
When Pr.0 =6%
Torque boost (%)
Regenerative
current
0
Pr.0
3%
100
115
Pr.292 = "6"
120 140
Torque boost 0%