SINUS PENTA
PROGRAMMING GUIDE
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A091 Braking Resistor Overload
A091 Description
Overvoltage due to the overload of the braking resistor that has been operating for a
time equal to the maximum time due to settings in C211 and C212.
Event
The braking resistance command was inhibited because the maximum ON time was
expired and the energy caused by regeneration (that can no longer be dissipated) has
led to overvoltage.
Possible
cause
This application requires an intense use of the Braking Resistor, for example in lifting
applications
, where a long downstroke is required when the load is connected to the
motor.
Solution
1. Reset the alarm: send a RESET command.
2.
If the power dissipated by the braking resistance allows for a heavier use, set
C211 with a greater ON time.
A093 Precharge: Bypass open
A093 Description Bypass relay open.
Event
The control board requested the closure of the bypass relay (or contactor) for the
short-circuit of the DC-link capacitor precharge resistors,
but no closing signal is
sent (auxiliary of the relay) during functioning (precharge already closed).
Failure in the relay control circuit or in the auxiliary signal circuit detecting relay
closing.
Solution
1. Reset the alarm: send a RESET command.
2. If the alarm persists, please contact ELETTRONICA SANTERNO’s Customer
Service.
A094 Heatsink Overheated
A094 Description IGBT heatsink temperature too high.
Event
IGBT power heatsink overheated even if the cooling fan is on (see also A096 and
A099).
Possible
cause
• Ambient temperature exceeding 40 °C.
• Too high motor current.
• Excessive carrier frequency for the application required.
Solution
1. Check ambient temperature.
2. Check motor current.
3. Decrease IGBT carrier frequency (see the CARRIER FREQUENCY MENU).
A095 Illegal Drive Profile Board
A095 Description An illegal Drive Profile board is implemented.
Event Incorrect configuration of the optional Drive Profile board.
Possible
cause
• The Drive Profile board is configured for a different drive.
• The Drive Profile board is not configured.
• Faulty Drive Profile board.
Solution
1. Make sure that the Drive Profile board is correctly configured for the Sinus Penta
drive.
2. Replace the Drive Profile board.
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