Multilin SR469 Instruction Manual Download

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S3 DIGITAL INPUTS

4. SETPOINT PROGRAMMING

4-16

4.4.5

STARTER STATUS

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6WDUWHU

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B1>75*ðCdQbdUbð1ehY\YQbiðQäðCdQbdUbð1ehY\YQbiðR

FUNCTION:
This input is

necessary for all motors. The SR469 determines that a motor has stopped when the phase current falls be-

low the level that the relay can measure (5% of CT primary). Monitoring an auxiliary contact from the breaker or contactor prevents the
relay from detecting additional starts when an unloaded motor is loaded, or issuing a block start after an unloaded motor is started and
running at less than 5% CT rated primary current.

Once 'Starter Auxiliary a' is chosen, terminals D16 and D23 will be monitored to detect the state of the breaker or contactor, open sig-
nifying the breaker or contactor is open and shorted signifying the breaker or contactor is closed. The SR469 will then determine that a
motor has made the transition from 'running' to 'stopped' only when the measured current is less than 5% CT ratio and the 'a' contact is
open.

Once 'Starter Auxiliary b' is chosen, the terminals D16 and D23 will be monitored to detect the state of the breaker or contactor, open
signifying the breaker or contactor is closed and shorted signifying the breaker or contactor is open. The SR469 will then determine that
a motor has made the transition from 'running' to 'stopped' only when the measured current is less than 5% CT ratio and the 'b' contact
is closed.

4.4.6

ASSIGNABLE DIGITAL INPUTS

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#4#

)81&7,21

2II

B1>75*ð ð ?VVð äð BU]_dUð 1\Qb]äð BU]_dUð DbY`äð C`UUTð CgYdSXð DbY`äð <_QTð CXUTð DbY`äð @bUccebUð Cgâð 1\Qb]ä

@bUccebUð CgYdSXð DbY`äð FYRbQdY_^ð Cgâð 1\Qb]äð FYRbQdY_^ð Cgâð DbY`äð 4YWYdQ\ð 3_e^dUbäð DQSX_]UdUbä
7U^UbQ\ðCgâð1äð7U^UbQ\ðCgâð2äð7U^UbQ\ðCgâð3äð7U^UbQ\ðCgâð4äð3Q`debUðDbQSUäðCY]e\QdUð@bUã
6Qe\däðCY]e\QdUð6Qe\däðCY]e\QdUð@bUã6Qe\dâââ6Qe\dâ

MESSAGE

Messages that follow are dictated by the
function chosen.

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ESCAPE

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#5#

)81&7,21

2II

B1>75*ð ð ?VVð äð BU]_dUð 1\Qb]äð BU]_dUð DbY`äð C`UUTð CgYdSXð DbY`äð <_QTð CXUTð DbY`äð @bUccebUð Cgâð 1\Qb]ä

MESSAGE

Messages that follow are dictated by the
function chosen.

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,1387

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PRUH

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ESCAPE

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#6#

)81&7,21

2II

B1>75*ð ð ?VVð äð BU]_dUð 1\Qb]äð BU]_dUð DbY`äð C`UUTð CgYdSXð DbY`äð <_QTð CXUTð DbY`äð @bUccebUð Cgâð 1\Qb]ä

@bUccebUð CgYdSXð DbY`äð FYRbQdY_^ð Cgâð 1\Qb]äð FYRbQdY_^ð Cgâð DbY`äð 4YWYdQ\ð 3_e^dUbäDQSX_]UdUbä
7U^UbQ\ðCgâð1äð7U^UbQ\ðCgâð2äð7U^UbQ\ðCgâð3äð7U^UbQ\ðCgâð4äð3Q`debUðDbQSUäðCY]e\QdUð@bUã
6Qe\däðCY]e\QdUð6Qe\däðCY]e\QdUð@bUã6Qe\dâââ6Qe\dâ

MESSAGE

Messages that follow are dictated by the
function chosen.

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ESCAPE

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#7#

)81&7,21

2II

B1>75*ð ð ?VVð äð BU]_dUð 1\Qb]äð BU]_dUð DbY`äð C`UUTð CgYdSXð DbY`äð <_QTð CXUTð DbY`äð @bUccebUð Cgâð 1\Qb]ä

MESSAGE

Messages that follow are dictated by the
function chosen.

FUNCTION:

There are four user assignable digital inputs that may be configured to any one of a number of different functions, or turned Off. Once a
function is chosen, any messages that follow may be used to set pertinent parameters for operation. Each function may only be chosen
once. Assignable Inputs 1-4 will be activated by shorting D19 - D22 (respectively) with D23.

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#7#

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7:2

63(('

021,725

The two-speed motor protection is enabled in S2 SYSTEM SETUP\CURRENT SENSING. If the Two-Speed Motor feature is enabled,
ASSIGNABLE INPUT4 will be dedicated as the Two-Speed Motor Monitor. Terminals D22 and D23 will be monitored for a contact clo-
sure. Closure of the contact will signify that the motor is in Speed 2 or High Speed. If the input is open, it signifies that the motor is in
Speed 1. This allows the SR469 to determine which setpoints should be active at any given point in time.