Mitsubishi Electric FR-A700 Series, Техническое руководство

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