Alarm Button (Remote Display)
Schneider Electric · Altivar 312 Variable Frequency Drive
¿Qué significa A-17 ?
This alarm is displayed on the remote terminal when a button has been held down for an extended period (more than 10 seconds), or if the keypad is disconnected. It suggests a physical issue with the terminal's buttons, or a faulty connection of the keypad itself, which can prevent proper input.
Causas comunes
- A button on the remote display keypad is physically stuck in the pressed position due to debris, damage, or wear.
- A foreign object (e.g., dust, grit) lodged under a keypad button, causing a continuous contact closure.
- Damage to the keypad membrane or internal circuit board, leading to a permanent 'button pressed' signal.
- The remote display unit was disconnected from the drive while a button was being held down.
- Internal fault within the remote display's input sensing circuit, misinterpreting an open button as pressed.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
1. Carefully inspect the entire remote display keypad for any physically stuck buttons or foreign objects lodged underneath. Gently clean around the buttons.
- 2
2. Perform a tactile test on each keypad button to ensure it depresses and releases smoothly without sticking or resistance.
- 3
3. Disconnect the remote display unit from the drive for at least 10 seconds, then reconnect it, ensuring no buttons are pressed during reconnection.
- 4
4. If possible and safe, gently remove the keypad membrane (if designed for it) and clean the contact points, checking for any physical damage or corrosion.
- 5
5. Attempt to operate the drive using local controls on the drive itself (if available) or via a communication interface to confirm drive functionality is not impaired.