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LSM200 Series Load Sharing Modules 6-2021-B1 PIB4100

LSM200 Series

Load Sharing Modules

INTRODUCTION

SPECIFICATIONS

PERFORMANCE

Load Sharing

Adjustable to within ± 2 % between sets

Operating Modes

Isochronous and main power control

Reverse Power Monitor Trip Point

Adjustable from -2 to -20 %

Reverse Power Delay

(Inverse Time Delay)

Adjustable from 0.5 to 15 s

Forward Power Monitor Trip Point

ON trip point adjustable from 20 - 100 %

OFF trip point adjustable from 0 - 80 %

Forward Power Delay

Adjustable from 0.4 to 30 s

Power Output Signal

0 to -1 V DC reverse power

0 to +6 V DC forward power

Forward and Reverse Power

Relay Contact Rating

Form C, 10 A 290 VA

Parallel Cable

Relay Contact Rating

Gold Clad, 1.25 A 60 VA MAX

ENviRONMENtAl

Operating Temperature

-40 to 185 °F [-40 to +85 °C]

Humidity

up to 95 %

All Surface Finishes

Fungus proof and corrosion resistance

COMPliANCE / StANDARDS

Agency

LSM201 - CE Approved

LSM201N - Non-CE approved

ROHs - Compliant

The LSM200 Series controllers provide Isochronous load sharing. These multifunction

load sharing and power control modules support GAC speed control units on generator

set applications requiring isochronous paralleling and for mains power control.

Engine generator sets with isochronous speed control units maintain the requested

speed very precisely. If synchronous generators are electrically paralleled to increase

the total generated power capability, a system to apportion the load is required.

Even the finest electric governors have minor frequency differences among units to be

paralleled, which would cause power variations. In this case, one generator set would

continuously increase the power it produces, while the other sets would decrease the

power they produce.

This condition eventually leads to motorizing one or more generator/ engines. The load

sharing system continuously adjusts the governor speed settings so that no average power difference exists The generators are

locked together through electrical synchronizing torques acting as a tightly connected gear drive. The line current measurements

are usually taken from current transformers in the equipment such as those used for ammeter circuits.

The LSM201 is available in a CE and non-CE version. Each supports:

•

24 V DC

•

Isochronous Load Sharing

•

Load Anticipation and Droop

•

Forward and Reverse Power Monitoring and Reset Capability

•

Power Monitor Adjustment Control

•

Generator Power Ramping and Control

POWER iNPUt \ OUtPUt

3 phase

AC Voltage signals

Two selectable ranges accommodate

100 - 500 V AC line-to-line

Isolated from battery (-) by 5000 V DC

Isolated from case by 1000 V DC

3 phase AC Line Currents

0-5 Amps with 1.25 VA requirement

Isolated from case by 1000 V DC

Connected to Speed Control Module

DC Supply

24 -32 V DC (Transient and Reverse

voltage protected). Battery (-) on all sets

must be connected together in common

Polarity

Negative ground case isolated.

Power Consumption

Battery Supply

160 ma

AC Phase Voltage Inputs

2.5 ma

External Power Meter

(Voltage Output)

10 ma MAX Current

PHYSiCAl

Dimensions

See Section 4, Wiring and Dimensions

Weight

1.2 lbf [0.56 kgf]

Mounting

Any Position

REliABilitY

Vibration

5 g, 20 - 500 Hz

Testing

100 % functional tested

Содержание LSM200 Series

Страница 1: ...nest electric governors have minor frequency differences among units to be paralleled which would cause power variations In this case one generator set would continuously increase the power it produces while the other sets would decrease the power they produce This condition eventually leads to motorizing one or more generator engines The load sharing system continuously adjusts the governor speed...

Страница 2: ...nerator sets that are to be synchronized must be tested independently for their maximum capabilities Information should be gath ered for reference if operational issues arise after installation of this product Read this entire installation manual before starting installation of this product An overspeed shutdown device independent of the governor system should be used to prevent loss of engine con...

Страница 3: ...erator Electrical connections are illustrated in the wiring diagrams Choice of a proper wire size is dependent on the maximum current expected at specific terminals of the load sharing module Large gauge wire should be used for Current Transformer CT Terminals 4 to 9 as the current can reach a maximum of 5 A Long wires with high resistance can add to the burden of the CT shielded wire is recommend...

Страница 5: ...s common mode signals Battery minus for all generators must be connected together to limit high common mode signals indicating an unbalanced load condition Each load sharing unit takes action to control its governor to minimize this imbalance The imbalance should be less than 2 when the system is adjusted properly The parallel cable voltage is proportional to the load on the generator The voltage ...

Страница 6: ...osition 100 the delay is about 30 s An internal relay with 10 A Form C contacts normally open NO and normally closed NC are included at Ter minals 28 29 and 30 along with an LED to signal the monitor relay status 1 Always set the ON point first with the delay set to minimum delay With the ON adjustment at a setting of 80 adjust the generator load for a desired trip point i e 90 load Turn the ON ad...

Страница 7: ... are possible if the capability of the engine is not limiting the system Optimize this adjustment with repetitive load steps ILC Individual Load Control and Load Ramping Load Anticipation Function Solder a jumper wire across these posts without damaging the circuit board When a reverse power condition occurs the internal relay will activate and latch To reset the relay open the external Reverse Po...

Страница 8: ...ay Full CCW Fastest Load Sensitivity 100 Most Sensitive Load Anticipation 0 0 External Power Meter Cal 100 Max Range ILC Load Ramp 20 Approx 4 Sec Generator Power Ramp 0 0 Generator Power Adjust 0 0 Generator Power Display Cal 50 5 Amps Full Scale Terminal Voltage Measurement Value 31 to 23 Internal Power Supply 10 6 0 2 V DC 12 to 23 Output to Governor 5 0 0 1 V DC Terminal Voltage Measurement Va...

Страница 9: ...ent from 100 slowly toward 0 until the monitor turns on Remove the generator load The monitor should turn OFF reset Recheck the setting by applying the 10 load again The Reverse Power Delay may now be set by turning this adjustment CW The minimum delay necessary should be used otherwise leave this setting to full CCW minimum delay Note The delays are of the inverse time type See previous descripti...

Страница 10: ... above readings look for an open generator neutral connection missing AC current or AC voltage signal or SW1 voltage range switch set improperly 10 To confirm that the Load Sharing portion is controlling the governor temporarily connect a jumper across Terminals 10 to 11 and short Terminals 13 to 14 11 Apply load to the engine The speed of the engine should fall droop as more load is applied to th...

Страница 11: ...ded to use shielded cable for all external connections Be sure that only one end of the shields including the speed sensor shield is connected to a single point on the case of the speed control unit Mount the speed control to a grounded metal back plate or place it in a sealed metal box Radiation is when the interfering signal is radiated directly through space to the governing system To isolate t...

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