LiteOn EVO 6800 Series, Manual, Page: 11 / 261

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The motor characteristics at start and during acceleration are limited by the drive overcurrent.
If higher starting torque is needed, use a higher rating drive or increase capacity of both motor
and drive.
1.3.1.3 Emergency Stop
When a drive fault occurs, protection function will be automatically triggered to shut off the
output but the motor may not stop immediately. Therefore please install mechanical brake if
immediate stop is necessary.
1.3.2 Settings
1.3.2.1 Upper Limits
The maximum output frequency of the drive is 400Hz. If the upper limit is set incorrectly, the
motor will run at higher than its rated speed and cause danger. Please set the limit of output
frequency in Frequency Upper Limit parameter. The default setting of the rated output
frequency is 60Hz.
1.3.2.2 DC Braking
Excessive DC braking current and duration could cause motor overheat.
1.3.2.3 Acceleration /Deceleration Time (Acc./Dec. Time)
Acceleration and deceleration time is determined by the motor torque, load torque and load
inertia. Set a longer Acc./Dec. time after Stall Prevention function is triggered. In addition, the
acceleration and deceleration time will be extended depending on the Stall Prevention
duration. If faster acceleration and deceleration are required, install proper braking options or
use a higher rating motor and AC drive.
1.3.3 General Handling
1.3.3.1 Wiring
Connecting power supply to output terminals U/T1, V/T2 and W/T3 will damage the drive.
Check all the connections and wiring sequence before turning on the power. Failure to comply
could cause drive damage.
1.3.3.2 Maintenance