Mitsubishi Electric FR-A700 Technical Manual page 188

(5) Additional compensation
(Pr. 242, 243)
A700
The compensation signal can be added to the main
speed setting for synchronous/continuous speed
control operation, etc.
The compensation input of the terminal 1 can also be
added to the multi-speed setting or terminal 4 (initial
value 4 to 20mA).
The added compensation for terminal 2 can be
adjusted by [Pr. 242], and the compensation for
terminal 4 by [Pr. 243].
Analog
command value = Terminal 2 input + Terminal 1 input
using terminal 2
Analog
command value = Terminal 4 input + Terminal 1 input
using terminal 4
Auxiliary input
0 to 10V ( 5V)
[Pr. ]
Terminal 1 added compensation
242
amount (terminal 2)
Terminal 1 added compensation
243
amount (terminal 4)
F700
[Pr. 242]
100(%)
[Pr. 243]
100(%)
Forward
Inverter
rotation
STF
SD
10
2
5
1
Added compensation
connection example
Name Initial Value
Auxiliary input characteristics
(-10V)
STF Signal
ON
STF Signal
ON
(-10V)
Reverse rotation
STF Signal
ON
Reverse rotation
STF Signal
ON
Setting Range
100% 0 to 100%
75% 0 to 100%
222
PARAMETER
Output frequency
When voltage across
terminals 2 and 5 is 2.5V
(5V)
-5V -2.5V 0 +5V
+2.5V
(-5V) (+10V)
(+5V)
Forward rotation
Forward rotation
When [Pr. 73] setting is 0 to 5
Output frequency
When voltage across
terminals 2 and 5 is 2.5V
(5V)
0
-5V -2.5V +2.5V +5V
(-5V) (+10V)
(+5V)
Forward rotation
Forward rotation
When [Pr. 73] setting is 10 to 15
Description
Set the ratio of added compensation
amount when terminal 2 is the main
speed.
Set the ratio of added compensation
amount when terminal 4 is the main
speed.
When voltage
across terminals 2
and 5 is 0V
Terminal 1
When voltage
across terminals 2
and 5 is 0V
Terminal 1