Lift Operation (Automatic Acceleration/Deceleration) - Mitsubishi Electric 800 Series Instruction Manual

(F) Setting of acceleration/deceleration time and acceleration/deceleration pattern
5.8.7
Lift operation (automatic acceleration/
deceleration)
The inverter can be operated according to the load pattern of the lift with counterweight.
Pr.
292
Automatic acceleration/
deceleration
F500
61
Reference current
F510
64
Starting frequency for elevator
mode
F520

The setting range for the FR-A860-01080 or lower.

The setting range for the FR-A860-01440 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.
Name
Torque boost
Starting frequency
Base frequency voltage
Stall prevention operation level Pr.22 (150%), etc.
When Pr.0 =6%
Torque boost (%)
6%
Pr.0
3%
Torque boost 0%
Regenerative
0
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.
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) and the motor overload trip (E.THM) from occurring.
288
PARAMETERS
V/F V/F V/F
Initial
Name
value
0
9999
9999
Normal operation
Pr.0 (5/3/2/1%)
Pr.13 (0.5 Hz)
Pr.19 (9999)
Pr.292 = "5"
Pr.292 = "6"
Driving
100 120 140
current
115
(%)
Setting range
0 Normal operation
Shortest acceleration/deceleration
1
(without brakes)
Shortest acceleration/deceleration
11
(with brakes)
3 Optimum acceleration/deceleration
Lift operation 1 (stall prevention operation level
5
150%)
Lift operation 2 (stall prevention operation level
6
180%)
7, 8 Brake sequence 1, 2 (Refer to
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
0 to 10 Hz Set the starting frequency for the lift operation.
9999 Starting frequency is 2 Hz.
Multi-rating
(Pr.570)
Changes according to the output current (as shown below)
0 (SLD)
1 (LD)
2 (ND) Initial value
3 (HD)
Description
page
Lift operation (Pr.292)
5
Pr.64 (2 Hz) Accelerate after 100 ms hold.
575 V
110%
120%
150%
200%
(Refer to
page 285.)
457.)
6
115%
140%
180%
230%