134
Process and Application Parameters [300]
Section 11-3
Fig. 70
Calculation example of accelerating times (graphics not propor-
tional)
Example
Motor speed [225]: 3000 rpm
Minimum speed [341]: 600 rpm
Maximum speed [343]: 3000 rpm
Acceleration time [331]: 10 seconds
Deceleration time [332]: 10 seconds
Acc>Min speed [335]: 40 seconds
Dec<Min speed [336]: 40 seconds
A. The drive will start from 0 rpm and accelerate to Minimum speed [341] =
600 rpm in 8 seconds according to ramp time parameter Acc>Min speed
[335]. Calculated as following:
600 rpm is 20% of 3000 rpm => 20% of 40 s = 8 s.
B. The acceleration continues from minimum speed level 600 rpm to maxi-
mum speed level 3000 rpm with acceleration rate according to ramp time
Acceleration time [331]. Calculate by following:
3000 - 600 = 2400 rpm which is 80 % of 3000 rpm => acceleration time is
80% x 10 s = 8 s.
This means that the total acceleration time from 0 - 3000 rpm will take 8 +
8 = 16 seconds.
Deceleration Time from Minimum Speed [336]
If a minimum speed is programmed, this parameter will be used to set the
deceleration time from the minimum speed to 0 rpm at a stop command. The
ramp time is defined as the time it takes for the motor to decelerate from the
nominal motor speed to 0 rpm.
Communication information
Default:
10.0 s
Range:
0-3600 s
Modbus Instance no/
DeviceNet no:
43106
Profibus slot/index
169/10
EtherCAT index (hex)
4c22
time
rpm
Motor Speed
Max speed
Min speed
[341]
[343]
[225]
3000
300
10.0s
A
Summary of Contents for SX-F
Page 2: ......
Page 14: ...6 Table of contents...
Page 20: ...12 Glossary Section 1 6...
Page 32: ...24 Cabinet mounting Section 2 3...
Page 58: ...50 Connecting options Section 5 6...
Page 72: ...64 Load Monitor and Process Protection 400 Section 7 5...
Page 74: ...66 EMC standards Section 8 1...
Page 266: ...258 System Data 900 Section 11 9...
Page 274: ...266 Maintenance Section 12 3...
Page 284: ...276 Liquid cooling Section 13 12...