CHAPTER 4: KEYPAD SETPOINTS
S3 OVERLOAD PROTECTION
369 MOTOR MANAGEMENT RELAY – QUICKSTART GUIDE
4–39
FIGURE 4–4: RTD Bias Curve
4.4.3
Overload Alarm
An overload alarm will occur only when the motor is running and the current rises above
the programmed
OVERLOAD ALARM LEVEL
. The overload alarm is disabled during a start.
An application of an unlatched overload alarm is to signal a PLC that controls the load on
the motor, whenever the motor is too heavily loaded.