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Additional function 2 (Pr. 252, Pr. 253)
3.24 Additional function 2 (Pr. 252, Pr. 253)
3.24.1 Override bias, gain (Pr. 252, Pr. 253 )
3.25 Power failure stop functions (Pr. 261 to Pr. 266)
3.25.1 Power-failure deceleration stop function (Pr. 261 to Pr. 266 )
When override is selected in Pr. 73 "speed setting signal", the override range can be extended from 50%-
150% to 0%-200% and set as desired.
Parameter Name
Setting
Range
Minimum Setting
Increments
Factory Setting Remarks
252 Override bias
0
to 200% 0.1% 50%
Extended mode
253 Override gain
0
to 200% 0.1% 150%
Related parameters
• ⇒ Pr. 73 "speed setting signal" (Refer to page 113.)
When a power failure or undervoltage occurs, the inverter can be decelerated to a stop.
z Remove the jumpers from across terminals R-R1 and S-S1, and connect terminal R1 to terminal P and
terminal S1 to terminal N.
Parameter Name Factory Setting Setting Range Remarks
261
Power failure stop
selection
00, 1
Extended mode
262
Subtracted speed at
deceleration start
90r/min 0 to 600r/min
263
Subtraction starting
speed
1500r/min 0 to 3600r/min, 9999
264
Power-failure
deceleration time 1
5s 0 to 3600/0 to 360s
265
Power-failure
deceleration time 2
9999 0 to 3600/0 to 360s, 9999
266
Power-failure
deceleration time
switchover speed
1500r/min 0 to 3600r/min
speed torque
Override amount (%)
Pr.252
0V 5V 10V
0
50
100
150
200
Factory setting
(50% to 150%)
Voltage across terminals 2-5
Pr.253
speed torque
Subtracted speed
Pr.262
Pr.264
Power-failure deceleration time 1
Pr.265
Power-failure deceleration time 2
Time
Power supply
Output speed
Switchover
speed
Pr.266