Xylem IM255 AQUAVAR Intelligent Pump Controller - Manual (Page 46)

Hand On The controller can be controlled by the navigation keys on
the LCP. Stop commands, reset, reversing, DC brake, and
other signals applied to the control terminals can
override local control.
The second word in the status line shows the Reference Site.
Remote The speed reference is given from external signals, serial
communication, or internal preset references.
Local The controller converter uses [Hand On] control or
reference values from the LCP.
The third word in the status line shows the Operation Status.
AC Brake AC Brake was selected in 2–10 Brake Function. The AC
brake over-magnetizes the motor to achieve a controlled
slow down.
AMA finish OK Automatic motor adaptation (AMA) was carried out
successfully.
AMA ready AMA is ready to start. Press [Hand On] to start.
AMA running AMA process is in progress.
Braking The brake chopper is in operation. Generative energy is
absorbed by the brake resistor.
Braking max. The brake chopper is in operation. The power limit for the
brake resistor defined in 2–12 Brake Power Limit (kW) has
been reached.
Coast • Coast inverse was selected as a function for a digital
input (parameter group 5–1* Digital Inputs). The
corresponding terminal is not connected.
• Coast activated by serial communication.
Ctrl. Ramp-down Control Ramp-down was selected in 14–10 Mains Failure.
• The mains voltage is below the value set in 14–11
Mains Voltage at Mains Fault
• The controller ramps down the motor using a
controlled ramp down
Current high The controller output current is above the limit set in 4–
51 Warning Current High.
Current Low The controller output current is below the limit set in 4–
52 Warning Speed Low.
DC Hold DC hold is selected in 1–80 Function at Stop and a stop
command is active. The motor is held by a DC current set
in 2–00 DC Hold/Preheat Current.
DC Stop The motor is held with a DC current (2–01 DC Brake
Current) for a specified time (2–02 DC Braking Time).
• DC Brake is activated in 2–03 DC Brake Cut In Speed
[RPM] and a Stop command is active.
• DC Brake (inverse) is selected as a function for a
digital input (parameter group 5–1* Digital Inputs).
The corresponding terminal is not active.
• The DC Brake is activated via serial communication.
Feedback high The sum of all feedbacks is above the feedback limit set
in 4–57 Warning Feedback High.
Feedback low The sum of all actives is below the feedback limit set in 4–
56 Warning Feedback Low.
Electrical Installation
44 Aquavar ® Intelligent Pump Controller INSTRUCTION MANUAL