Drum Driver 2 LEDs Status on Lotem 400

LEDs indications when ON:

• PWR SUPPLY—all power supplies are functioning (P15V, N15V, VCC, PWR15V).
• OVER VOLT—the DC bus voltage exceeds the limit (403 Vdc).
• SHORT—the motor phase shorts (phase to phase or phase to GND/CGND) and the current exceeds 40 Amp.
• UNDER VOLT—the DC bus voltage is under the limit (100 Vdc).
• OVER LOAD—the current command remained at 16 Amp. for more than ~20 seconds, or more than 30 Amp. for more than ~10 seconds.
• INHIBIT—the driver is shutdown or disabled.
• OVER TEMP—the heat sink exceeds "work temperature" (75°).

The FAULT led is ON when any one of the following four signals is ON:

• OVER VOLT
• UNDER VOLT
• SHORT
• OVER TEMP