Table of Contents
Advertisement
Output Voltage and Frequency
Ringer output voltage and frequency settings are controlled by the Controller. See Ringer specifications
for ranges and factory settings.
Fan Power
Ringers provide power, control, and alarm monitoring for Ringer Chassis fans.
Status LED
QS820 Ringers have a single tri-color LED. The LED indications are listed below.
LEDs: *= On
Green
Flashing
*
1.
Conditions are listed in precedence order, highest precedence on top, i.e. when both Internal Fault and External
Fault conditions are active, the LED displays the Internal Fault pattern.
2.
Normal is only active when no other condition is active.
3.
Fan Fail (chassis fan) is not a Ringer failure and does not affect LEDs.
4. Output Power or Voltage is reduced (limited) to less than the Operational Setting due to excessive external load or
excessive ringer temperature.
Status Descriptions
Normal Operation: Ringer is operating within specification, without output limiting.
Standby: Ringer is capable of Normal Operation, but its output is disabled due to one of two
conditions:
Redundant Standby: This is the Spare Ringer and the Primary is operating normally
•
•
Remote Standby: The Controller has placed the Ringer into Standby
Communications Loss: Ringer has lost communications with the Controller. Ringer operation
continues at the last received configuration.
External Fault: Ringer output is limited in response to an external condition.
•
Ring Return Not Terminated: Ringer output is disabled. Ringer Chassis Jumper J12 is in the EXTERNAL position and
there is no external connection between Ring Return and either Battery or Ground. Recovery is automatic when
connection is made.
Page 133
© Copyright 2021 ABB. All rights reserved.
Amber
Red
*
*
Flashing
none
Lamp Test
Internal Fault
Thermal shutdown
Ringer Failure
External Fault
Ring Return not terminated
Output limited – excessive output load
Output limited – excessive temperature
Communication Loss
Standby
Normal Operation
Input Under / Over Voltage
Ringer Not Fully Inserted
Condition
Advertisement
Table of Contents
