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1.4.5
S3 Digital Inputs Settings
1–32
Once the signal is received the motor will be started across the line. Therefore, the
following settings are left with their default values. In the
settings page:
VOLTAGE STARTING
REDUCE VOLTAGE STARTING
ASSIGN CONTROL RELAYS
: "Current Only"
TRANSITION ON
: "Trip"
ASSIGN TRIP RELAYS
REDUCE VOLTAGE START LEVEL
REDUCE VOLTAGE START TIMER
The S3 settings page is for entering the characteristics of the digital inputs. In our example,
these characteristics are specified under the Control System Requirements heading.
Program the S3 settings as indicated.
Some of the functions assigned to the digital inputs of the 469 Motor Management Relay
are pre-defined functions, which can be selected from a list. There are four user-defined
functions, called General Switch A to D, associated to the assignable inputs. Set these
inputs to operate output relays, with or without delay, responding to the status change of
dry contacts connected to the digital input terminals. Use the following procedure to set
these functions:
Change the default names to meaningful values so they can be easily
identified, either via the LCD or when reviewing event reports.
Identify their asserted logic.
Define the functionality of the digital inputs.
All the other assignable input functions are pre-defined, and when selected, they can be
set to generate Trip or Alarms, as well as energize auxiliary outputs as needed.
For breaker position monitoring, set the following pre-defined Digital Input called "Starter
Status". As per the information provided above, a 52b contact will be used, and must be
connected between terminals D16 to D23:
S3 DIGITAL INPUTS
To set the relay to monitor access to the station, use Assignable Input 1 as "General Switch
A", as follows. To define the digital input, enter the following data in the
settings page.
ASSIGNABLE INPUT 1
To identify the digital input:
: "General Sw. A"
INPUT 1 FUNCTION
: "Stn. Monitor"
SWITCH NAME
To define the asserted logic:
: "Normally Open"
GENERAL SWITCH A
To define the functionality:
BLOCK INPUT FROM START
GENERAL SWITCH A ALARM
ASSIGN ALARM RELAYS
: "Off"
: "Auxiliary3" (available for other use)
: "100% FLA"
: "200 s"
STARTER STATUS
STARTER STATUS SW
: "0 s"
: "Latched"
: "Alarm"
469 MOTOR MANAGEMENT RELAY – INSTRUCTION MANUAL
CHAPTER 1: GETTING STARTED
S2 SYSTEM SETUP
REDUCE
: "Starter Auxiliary b"
S3 DIGITAL INPUTS
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