Welcome to the official website of CNIACS Automation Technology Co., Ltd!
0
September 28, 2026 BY
IN Beckhoff

Beckhoff EL3182 | EtherCAT Terminal, 2-channel analog input, current, 0/4…20 mA

The EL3182 analog input terminal for HART-capable field devices

supplies measuring transducers located in the field and transmits

their analog measuring signals electrically isolated to the

automation device. With a technical measuring range of 107% of

the nominal range, the terminal also supports commissioning with

sensor values in the limit range and the evaluation according to

NAMUR NE43.

The EtherCAT Terminal indicates the signal state by means of light

emitting diodes. Error LEDs signal overload and wire breakage, in

addition to which LEDs provide information about the state of the

HART communication and signal any communication errors.

The HART (Highway Addressable Remote Transducer) protocol

enables two-way communication through digital data transfer via

the analog 0/4…20 mA wiring. In this way, in addition to the analog

current signal, further data can be exchanged with the field device

via the superimposed digital signal.

The HART communication can also be used for the FDT/DTM concept.

The TwinCAT FDT container enables the integration of field device DTMs

into TwinCAT Engineering, so that the device configuration and diagnostic

functions are available directly within the development environment.

As the FDT concept only supports 32-bit, it cannot be used in the 64-bit

TwinCAT XAE Shell.
September 28, 2026 BY
IN Beckhoff

Beckhoff EL3174-0090 | EtherCAT Terminal, 4-channel analog input, multi-function

The EL3174 analog input terminal has four individually parameterizable inputs.

Signals in the range from -10/0 to +10 V or-20/0/+4 to +20 mA can be

processed via each channel. Physically, the voltage and current signals

should be connected to different terminal points.

Each channel should then be set by the controller/TwinCAT to U or I mode

via CoE. The voltage inputs operate differentially; the current inputs are

single-ended. All inputs are digitized with a resolution of 16 bits and

transmitted, electrically isolated, to the higher-level automation device.

With a technical measuring range of ±107% of the nominal range, the

terminal also supports commissioning with sensor values in the limit

range and diagnostics according to NAMUR NE43.

With the aid of the TwinSAFE SC technology (TwinSAFE Single Channel)

it is possible to make use of standard signals for safety tasks in any

network or fieldbus. To do this, EtherCAT I/Os from the areas of analog

input, position measurement or communication (4… 20 mA, incremental

encoder, IO-Link, etc.) are extended by the TwinSAFE SC function.

The properties typical for the signals and the standard functions of the

I/O components are retained. TwinSAFE SC I/Os differ optically from

standard I/Os by a yellow stripe on the front of the housing.

The TwinSAFE SC technology enables communication via a TwinSAFE

protocol. These connections can be distinguished from the usual secure

communication via Safety over EtherCAT.

The data from the TwinSAFE SC components is fed via a TwinSAFE

protocol to the TwinSAFE Logic, where it can be used in the

context of safety-relevant applications. Detailed examples confirmed/

calculated by the TÜV SÜD for the correct application of the TwinSAFE

SC components and the respective normative classifications can be

found in the TwinSAFE application manual.
September 28, 2026 BY
IN Basler Electric

Basler Electric SSE Underfrequency Limiter

Underfrequency Limiter

The output from one winding of the generator sensing transformer is applied to the underfrequency limiter

circuit. It is the function of this circuit to reduce the generator output voltage when the generator is operated

at less than rated speed. The percentage of generator output voltage that will be obtained for a specific

reduction in frequency is illustrated in Figures 1-1 and 1-2. The horizontal axis of the graph represents

generator frequency and the vertical axis represents the percent of nominal generated output voltage. Volts

per-hertz operation is obtained by jumping the terminals located on TS3. Limiting for 50 or 60 Hz is obtained

by proper positioning of the jumper on TS4. (Refer to Section 3. Jumper Connections)

Parallel Compensation

When two generators are operating in parallel, if the field excitation on one generator becomes excessive

and causes a circulating current flow between generators, this current will appear as a lagging power factor

(inductive) load to the generator with excessive field current and as a leading power factor (capacitive) load

to the other. The parallel compensation circuit causes the exciter-regulator to decrease the field excitation

on the generator with the lagging power factor load and increases the excitation on the other generator to

minimize the circulating currents.
September 28, 2026 BY
IN Basler Electric

Basler Electric SSE Automatic Voltage Regulator (AVR)

Generator Sensing

Single-phase generator sensing voltage is connected at TS3-E1 and TS3-E3. Three-phase generator

sensing is connected to TS3-E1. TS3-E2. and TS3-E3. The sensing inputs are applied to the primary of

sensing transformers T3 and T4. The output voltage from the transformer(s) secondary windings is rectified

and a representative sample, taken from a voltage divider network, is applied to the automatic voltage

regulator. Selection of single-phase or three-phase sensing is done with a jumper on TS2 (Refer to Section

3. Jumper Connections).

Automatic Voltage Regulator (AVR)

The AVR senses any change in generator output voltage and translates such changes into a dc error

voltage. When the auto / manual mode switch is auto, the dc voltage is sent to the firing circuits where it

modifies the gating pulse output originally established by the manual adjust control. When the AVR

determines that the generator output voltage is low, the gating pulses are applied to the power bridge SCRs

earlier in the cycle to cause a greater dc output. When the generator output voltage is high, the gating

pulses are applied later in the cycle causing less current in the generator field.
September 28, 2026 BY
IN Basler Electric

Basler Electric SSE Semiconverter Power Rectifier (Power Bridge)

Semiconverter Power Rectifier (Power Bridge)

The conduction time of the SCRs in the power bridge determines the amount of output current supplied to

the generator exciter field. Conduction time is controlled by the timing of gating pulses from the firing circuits.

The greater the conduction time of the SCRs, the greater the output current. The less the conduction time,

the less the output current.

Firing Circuit

The circuit compares a dc signal representative of the SCR output with a reference input established by the

manual adjust control (R5). Gating pulses to the power bridge are developed as a result of the comparison

of the two inputs. As R5 is adjusted to demand a higher or lower nominal generator output, the firing circuits

determine whether the gating pulses need to be applied earlier or later in the SCR firing cycle to establish

the new operating level. The power bridge responds by providing the correct output to the generator field.

When the auto / manual mode switch is in manual, R5 (essentially a manual voltage control) and the firing

circuits function independently of the rest of the exciter-regulator and the excitation system does not

regulate the system ac voltage. (Refer to Section 3. Controls)
September 28, 2026 BY
IN Basler Electric

Basler Electric Flash and Overflash Protection (SSE 250 Series Only)

Operating Power

Three-phase ac is applied to the power isolation transformer to provide operating power to the regulated

power supply and the semiconverter power rectifier bridge.

When the generator is placed into operation, residual voltage will pass through the normally closed contacts

of K1. It is then rectified and applied to the generator field. When the generator output voltage builds up to

a sufficient value, K1 (connected across the output of the regulator power supply) energizes, and the

contacts open, removing the voltage build-up circuits. Thereafter, the power bridge output is established by

the gating pulses from the firing circuits. The minimum residual voltage required for build-up without flashing

is approximately 5% of nominal.

Flash and Overflash Protection (SSE 250 Series Only)

This circuit provides 125 Vdc to the generator field during start-up. When the generator output voltage rises

to 35% of nominal, the flashing voltage is removed and the static exciter regulator takes over. If the output

voltage does not build up in 25 seconds, the flashing voltage removed by the overflash protection circuitry.
September 28, 2026 BY
IN IIS

IIS MSC-850/32 SYSTEM UNIT Command Bus

Command Bus

The Command Bus (C-BUS) (Figure 2-2) is

a parallel digital communications bus connecting

the Main Processor to the controllers. The C

BUS runs under a protocol established by a

unique Industrial Indexing Systems’ operating

system and is accessed by the user’s

Macroprogram.

The C-BUS allows Macroprogram

commands to be sent from the Main Processor to

the controllers.

It also allows data to be

exchanged between the Main Processor and the

controllers.

Controller Slots

The 8 controller slots (Figure 2-3) accept

any controller in any combination. The controllers

are; ACR-850 Resolver Axis Controller, ACE-850

Encoder Axis Controller, MCF-850 Multifunction

Controller, HPL-850 High Performance Limit

Switch Controller, or ACM-850 Analog Controller.

The controller slots are connected to 2

Angle Buses, On-board Input Modules, and the

C-BUS. Power is supplied to the controllers

through the controller slots. A 2.6KHz Resolver

Reference signal is supplied through the

controller slots to the ACR-850 Resolver Axis

Controllers.
September 28, 2026 BY
IN Basler Electric

Basler Electric Shunt-Static Exciter-Regulator (SSE) controls

Introduction

The Basler Electric Shunt-Static Exciter-Regulator (SSE) controls and regulates the generator output

voltage by controlling the generator field voltage. Standard features include underfrequency or volt/hertz

operation, manual control, and provisions for paralleling. The capabilities and parameters of each model

are detailed in Table 1-1. A power input transformer is supplied as a part of the SSE.

Options

The list of options described below contains some of the options that are available on all units and may be

on your unit.

• Failed rectifier detector

• Auto / manual nulling meter

• Manual tracking motor operated potentiometer

• Over / under excitation limiting

• AC shut-down contactor

• Field flashing contactor

• Paralleling current transformers

• VAR / power factor controller

• Primary fusing for power transformer when sold in cubicle

• Metering

• Potential transformer

• Cubicles

• MOC potentiometers

• Overexcitation protective relay

• Underexcitation protective relay
September 28, 2026 BY
IN IIS

IIS MSC-850/32 SYSTEM UNIT On-Board I/O Modules

On-Board I/O Modules

The connections for the eight On-board I/O

modules (Figure 2-4) allow process inputs to be

connected directly to the controllers. They also

connect process inputs and outputs to the Main

Processor by way of the I/O Bus. The input and

output modules can be either AC or DC. The IIS

part numbers for the six different plug-in modules

are listed in Table 2-1 below.

Each On-Board I/O Module Connects to

both the Main Processor and a corresponding

controller (e.g. I/O Module 1 connects to the

controller in slot 1. I/O Module 2 connects to the

controller in slot 2. etc..).

The Main Processor can read inputs and

set outputs. Inputs are used by the control

programs to monitor the status of external

devices. Outputs allow the control programs to

affect the status of external devices.

The controllers can read inputs from On

Board Input Modules. These inputs are used with

control program functions to provide fast

hardware interrupts, typically used to initiate a

motion or motion related event.
September 28, 2026 BY
IN Basler Electric

Basler Electric BE1-46N Model and Style Number

Model and Style Number

Electrical characteristics and operational features included in a specific relay

are defined by a combination of letters and numbers that make up the style

number. Model number BE1-46N designates the relay as a Basler Electric

Negative Sequence Overcurrent Relay. The model number, together with

the style number, describes the options included in a specific device and

appears on the front panel, draw-out cradle, and inside the case assembly.

The positive sequence component of current (I1) represents the portion of

the total current which has normal phase rotation and produces no adverse

effect on the system. An ideally balanced system contains only positive

sequence phase currents and voltages.

The zero sequence component of current (I0) also has no adverse effect

on a three-phase, three-wire (no neutral connection) power system because

it produces no appreciable magnetic flux and causes no excessive heating

in the generator rotor or windings.

Menu

Search for products

Back to Top
Product has been added to your cart