Mitsubishi Electric FR-CS84-012 Instruction Manual page 202

Pr. Name
Increased magnetic
660
excitation deceleration
G130
operation selection
661 Magnetic excitation
G131 increase rate
662 Increased magnetic
G132 excitation current level
 Setting of increased magnetic excitation rate (Pr.660, Pr.661)
• To enable the increased magnetic excitation deceleration, set "1" in
.
operation selection
• Set the amount of excitation increase in
is disabled when
Pr.661
• When the DC bus voltage exceeds the increased magnetic excitation deceleration operation level during the deceleration,
excitation is increased in accordance with the setting value in
Inverter
400 V class
• When the stall prevention (overvoltage) occurs during the increased magnetic excitation deceleration operation, increase
the deceleration time or raise the setting value of
deceleration time or lower the setting value of
NOTE
• Increased magnetic excitation deceleration is disabled in the following conditions:
Power failure stop, operation with the FR-HC2/FR-CV, and Optimum excitation control.
 Overcurrent prevention function (Pr.662)
• The increased magnetic excitation rate is lowered automatically when the output current exceeds the level set in
during increased magnetic excitation deceleration.
• When the inverter protective function (E.OC[], E.THT) is activated due to increased magnetic excitation deceleration,
adjust the level set in
Pr.662
• The overcurrent preventive function is disabled when
NOTE
• When the level set in Pr.662 is more than the one set in Pr.22 Stall prevention operation level, the overcurrent preventive
function is activated at the level set in Pr.22. (The level set in Pr.662 is applied when Pr.22 = "0".)
Parameters referred to
Pr.22 Stall prevention operation level
Pr.30 Regenerative function selection
Pr.60 Energy saving control selection
Pr.261 Power failure stop selection
Setting
Initial value
range
0
0
1
0 to 40%
9999
9999
100% 0 to 300%
Pr.661 Magnetic excitation increase rate
= "0".
Increased magnetic excitation
deceleration operation level
680 V
Pr.661
.
Pr.661
.
page 119
page 159
page 195
page 160
Without the increased magnetic excitation deceleration function
With the increased magnetic excitation deceleration function
Set the increase of excitation.
The magnetic excitation increase rate is 10%.
The increased magnetic excitation rate is automatically lowered
when the output current exceeds the setting value during increased
magnetic excitation deceleration.
Pr.660 Increased magnetic excitation deceleration
. Increased magnetic excitation deceleration
.
Pr.661
. When the stall prevention (overcurrent) occurs, increase the
= "0".
Pr.662
Description
5. PARAMETERS
5.12 (G) Control parameters
2
2
3
4
5
6
7
8
9
10
Pr.662
201