Littelfuse SigmA User Manual

Generator Control

Advanced

SIGMA SERIES

Generator Control and Protection System

1

2

Simplified Circuit Diagram

A

S6610

(Power
Manager
Module)

B B B

S6500

(User-Interface
Module)

2 2 2

S6100

(Synchronizing &
Load-Sharing
Module)

1 1 1

S6000

(Input/Output &
Protection
Module)

S6500

(User-Interface
Module)

S6100

(Synchronizing &
Load-Sharing
Module)

S6000

(Input/Output &
Protection
Module)

S6500

(User-Interface
Module)

S6100

(Synchronizing &
Load-Sharing
Module)

S6000

(Input/Output &
Protection
Module)

Description

The SIGMA Generator Control and Protection System is a range of
integrated modules for protection and control of marine and land
based generators. The modules are marine approved and include all
relevant functions, such as protection of generators, synchronizing
and active/ reactive load sharing and Power Management.

IO/P Module S6000

1

Input/ Output and Protection Module

The SIGMA S6000 performs all measurements on the
generator side (voltages, currents, frequency), does the
generator protection, includes a non-essential load trip in
two steps and includes three measurement transducers.

S/LS Module S6100

2

Synchronizing and Load-Sharing Module

This module performs the control functions like synchronizing
and active and reactive load sharing. It performs the
measurements on the busbar side.

Accessories

A

B

Gen.

Amp.

Misc.

Volt.

kW kVAr Prot.

C/B CLOSED

PROTECTION TRIP

IN OPERATION

Mode

OFF DUTY

ENGINE ERROR

Duty

Reset Test

S6610 Power Manager Module

Controls the number of generators that are
supplying to the bus. It will issue start and
stop signals to the generators depending
on power requirement. There are 10 inputs
for large consumer requests.

SIGMA

Σ

S6500 User Interface Module

Page

This unit is optional, as the S6000/S6100

PAGE
PM
DOWN

also can be programmed from a PC.

Enter
Enter

It is possible to use one or more units

Yes

per installation.

No

ALARMPWR1 PWR2

GEN

A

GEN

B

Ordering Information

ORDERING
NUMBER

S6000.0010 Input/ Output and Protection Module– 5 A C/T
S6000.0020 Input/ Output and Protection Module–1 A C/T
S6100.0010 Synchronization and Load Sharing Module

ACCESSORIES REQUIREMENT

S6500.0010 Optional

S6610.0010 Optional

© 2013 Littelfuse Protection Relays & Controls
www.littelfuse.com/s6000

DESCRIPTION

GEN

C

Rev: 4-A-050313

Generator Control

Sync On

Frequency Control

SHAFT GENERATOR

(GRID)

Next S6000 / S6100

Next S6100

Advanced

SIGMA Technical Data

FEATURES

Reverse power protection
Overcurrent trip

Short-circuit trip
Power trip
Excitation loss relay trip
Over/ Undervoltage trip

Nonessential load trip in 2 steps
RS485/ Modbus RTU (RS485)
Synchronizer
Load sharer
VAR load sharer
Indication of measurements
Programming of the

S6000 and S6100 modules
Load depending start and

stop of generators
Large consumer request

Large consumer inhibit

Wiring Diagram

SIGMA

S6000

•

•

•

•

•

•

•

•

S/LS

MODULE

S6100

•

•

•

PM

MODULE

S6610

• •

• •

•

•

•

UI

MODULE

S6500

Features & Benefits

FEATURES BENEFITS

3-phase true RMS
measurement

Analog outputs for speed
and voltage control

PWM outputs for speed
and voltage control

Pulse outputs for speed
and voltage control

Large consumer request
inputs with load feed back

Type-approved by marine
classification societies

Reliable measurement, high noise immunity

Fits most elec tronic governors and ECUs

Compatible with e.g. CAT and Woodward

Compatible with conventional governors,
motorized potentiometers and some ECUs

Optimizes quantity of running generators
and saves fuel

Pre-configured Marine Power
Management System

Specifications (S6000)

Primary Supply +24 Vdc (-30%/+30 %) Isolated, 500 mA
Backup Supply +24 Vdc (-30%/+30 %) Isolated, 500 mA
Environmental Temp Range –15°C to +70°C
Gen. Phase-Phase Voltage (GPPV) 63.0-690.0 Vac (-2 % /+2 %) 3-phased
Gen. Indicated Voltage (GIV) 63-32 kV AC
CT Secondary Current (CTSC) 1 A or 5 A (consumption 25 mW or

125 mW) 3-phased

Gen. Rated Frequency (GRF) 40.0 -500.0 Hz
Gen. Maximum Current (GMC) 0.5-3,000.0 A / 500-30,000 A

Protection Functions
C/B Trip Relay Contact rating: AC: 8 A, 250 Vac; DC: 8 A, 35 Vdc
NE1 Trip Relay Contact rating: AC: 8 A, 250 Vac; DC: 8 A, 35 Vdc
NE2 Trip Relay Contact rating: AC: 8 A, 250 Vac; DC: 8 A, 35 Vdc
Alarm Relay Contact rating: AC: 8 A, 250 Vac; DC: 8 A, 35 Vdc
CAN Bus Connection: Screw terminals,2-wire with COM

Protocol: CANopen derivative
RS232 Connection: Customized plug, 4-wire (non-isolated)
Function: Configuration, Debugging or

firmware update
Protocol: ANSI terminal
RS485 Connection: Screw terminals, 2-wire (isolated)
Protocol: MODBUS-RTU

EMC EN 50081-2:1993, EN 50263: 1999
Marine Tests EN 60945:1997, IACS E10:1997
Connections Plug-in screw terminals

(spring terminals available as option)

Mounting Screw mounting (4 pcs. 4.2 x 12 mm)
Weight 1,150 g
Dimensions H 145 mm (5.7”)

W 190 mm (7.5”)
D 64.5 mm (2.5”)

(limp back function)

© 2013 Littelfuse Protection Relays & Controls
www.littelfuse.com/s6100

Rev: 4-A-050313