MITSUBISHI ELECTRIC FR-S520E - Manual (Page 87)

77
Explanation of functions (parameters)
2
F
UNCT
IO
NS
2.3.9 Load pattern selection (Pr. 14 )
You can select the optimum output characteristic (V/F characteristic) for the
application and load characteristics.
Parameter Name
Factory
Setting
Setting
Range
Remarks
14
Load pattern
selection
1 0, 1, 2, 3
0: For constant-torque loads
1: For variable-torque loads
2: For vertical lift loads
3: For vertical lift loads
Setting is
enabled when
Pr. 30 = "1".
CAUTION
1. When automatic torque boost control is selected, this parameter setting is
ignored.
2. Pr. 46 "second torque boost" is made valid when the RT signal turns on.
The RT signal acts as the second function selection signal and makes the
other second functions valid.
♦Related parameters♦
•
Automatic torque boost ⇒ Pr. 98 "automatic torque boost selection (motor capacity)"
(refer to page 125)
•
Boost setting ⇒ Pr. 0 "torque boost", Pr. 46 "second torque boost" (refer to page 67)
•
Assignment of RT signal to terminal when second torque boost is used
⇒ Pr. 60 to Pr. 63 (input terminal function selection) (refer to page 102)
Forward
rotation
Reverse
rotation
For constant-torque
loads
(e.g. conveyor, cart)
100%
Output voltage
Base frequency
Output frequency (Hz)
Pr.14=0
For variable-torque
loads
(Fan, pump)
100%
Base frequency
Output frequency (Hz)
Pr.14=1
100%
Base frequency
Output frequency (Hz)
Forward
rotation
Pr.14=2
Pr.0
Pr.46
Pr.14=3
100%
Base frequency
Output frequency (Hz)
Pr.0
Pr.46
For lift
Output voltage Output voltage Output voltage
For lift
Reverse
rotation
Boost for forward rotation
...Pr. 0 (Pr.46) setting Boost for forward rotation
...0%
Boost for reverse rotation
...0% Boost for reverse rotation
...Pr. 0 (Pr.46) setting
(Factory setting)