Lift Operation (Automatic Acceleration/Deceleration) - Mitsubishi Electric FR-A800 Series Instruction Manual

5.8.7
V/F V/F V/F
The inverter can be operated according to the load pattern of the lift with counterweight.
Pr.
292 Automatic acceleration/
F500 deceleration
61
Reference current
F510
64 Starting frequency for
F520 elevator mode
*1 The setting range of the FR-A820-03160(55K) or lower and the FR-A840-01800(55K) or lower
*2 The setting range of the FR-A820-03800(75K) or higher and the 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 following table.
• 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.
Name
Torque boost
Starting frequency
Base frequency voltage
Stall prevention operation level Pr.22 (150%), etc.
When Pr.0 =6%
Torque boost 0%
Regenerative
current
• 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.
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Lift operation (automatic acceleration/
deceleration)
Initial
Name
value
0
9999
9999
Normal operation
Pr.0 (6/4/3/2/1%)
Pr.13 (0.5 Hz)
Pr.19 (9999)
Torque boost (%)
Pr.292 = "5"
Pr.292 = "6"
6%
Pr.0
3%
0 100 120 140
115
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Setting range
0 Normal operation
Shortest acceleration/deceleration
1
(without brakes)
Shortest acceleration/deceleration
11
(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
*1
0 to 500 A
Set the reference current during shortest (optimum)
acceleration/deceleration.
*2
0 to 3600 A
9999 Rated output current value reference of the inverter
0 to 10 Hz Set the starting frequency for the lift operation.
9999 The starting frequency is 2 Hz.
Multi-rating
(Pr.570)
Changes according to the output
current (as shown below)
Pr.64 (2 Hz) Accelerate after 100 ms
hold.
220 V class (440 V class)
0 (SLD) 110%
1 (LD) 120%
2 (ND) initial
150%
value
3 (HD) 200%
Driving
current
(%)
5.8 (F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
Description
(Refer to
384.)
page 572.)
Lift operation (Pr.292)
5 6
115%
140%
180%
230%
5. PARAMETERS
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2
3
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