001 Stand Alone Low Voltage - Garney Construction

Bulletin 150 SMC Flex
Linear Speed Acceleration with Selectable Kickstart
This method starts the motor following a linear speed ramp. The ramp time defines the time the
motor will ramp from zero speed to full speed. This ramp time is user adjustable from
0…30 seconds. Linear Speed requires a tachometer input (0…5 V DC, 4.5 V = 100% speed).
The curent limit is active during the starting ramp.
The kickstart feature provides a boost at startup to break away loads that may require a pulse of
high torque to get started. It is intended to provide a current pulse, user adjustable 0…90%
locked rotor torque for a selected period of time, 0.0…2.0 seconds. Note that speed ramp
begins once the kickstart is completed.
Figure 1.17: Linear Speed Acceleration
Percent
Speed
100%
Start
Run
Time (seconds)
Stop
The basic parameter set for Linear Speed follows:
Table 1.F: Linear Speed Acceleration Parameters
Parameter
SMC Option
Starting Mode
Ramp Time
Current Limit Level
Kickstart Time
Kickstart Level
Option 2
Stop Mode
Stop time
Standard
Linear Speed
0.0…30.0 s
0…600% FLC (Full Load Current)
0.0…2.0 s
0…90% LRT
Disable
Linear Speed
0.0…120.0 s
Adjustments
1-18