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displayed.The required action in case the signal is lost can be set in Pr10-09.
Pr10.09=0. When feedback on ACI is lost, display shows blinking "FbE" and
ramps to stop after 60s, after reconnecting ACI it remains blinking. Press reset,
give new RUN command, and it runs again.
Pr10.09=1. When feedback on ACI is lost, display shows blinking "FbE" and
coasts to stop after 60s, after reconnecting ACI it remains blinking. Press reset,
give new RUN command, and it runs again.
Pr10.09=2. When feedback on ACI is lost, display shows blinking "FbE" after
60s. Because no feedback, the output goes to max frequency, after reconnecting
ACI it goes immediately back to normal PID control.
Q How does the mechanical brake output function in case of faults?
A Normally the brake will be engaged after a STOP command and if the frequency is
lower than the value set in Pr03.12.
After one of the faults OV, OC, LV an internal STOP command is given and because
the motor coasts to 0Hz, the output frequency is immediately 0Hz and lower than
value of P03.12, therefore the brake engages also immediately.
Upon external fault EF, also an internal STOP command is given but because the
drive ramps to 0Hz, the brake will be engaged when the frequency drops below the
value of Pr03.12.
Please set one of the outputs MO1 (Pr03.01) or RA-RC (Pr03.00) to 21 for mechanical
brake control. The frequency values for brake engage and brake release can be set
in Pr03.11 and Pr03.12 respectively.
Q How to clear the status of MI3 when 3-wire operation is selected (Pr04.04=2)?
A When MI3 is on (active) and when Pr04.02=2 to select 3-wire operation, MI3 keeps
its status. To clear this, please power off and power it on again.
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