MITSUBISHI ELECTRIC FR-S520 - Manual (Page 75)

66
2
.3.9 Load pattern selection
You can select the optimum output characteristic (V/F characteristic) for the
application and load characteristics.
Forward
rotation
Reverse
rotation
For constant-torque
loads
(e.g. conveyor, cart)
100%
Ou
tp
ut
vo
lt
a
g
e
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
Ou
tp
ut
vo
lt
a
g
e
Ou
tp
ut
vo
lt
a
g
e
Ou
tp
ut
vo
lt
a
g
e
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
Parameter Name
Factory
Setting
Setting
Range
Remarks
14
Load pattern
selection
0
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 109)
Boost setting
⇒
Pr. 0 "torque boost", Pr. 46 "second torque boost" (refer to page 58)
Assignment of RT signal to terminal when second torque boost is used
⇒
Pr. 60 to Pr. 63 (input terminal function selection) (refer to page 88)