Kollmorgen AKT2G-ENC-190-000 Incremental Encoder Interface with Differential Input

This terminal is an interface for direct connection of incremental encoders

with differential inputs (RS422). A 16-bit counter (in normal operating mode)

or a switchable 16/32-bit counter (in enhanced operating mode) with a

quadrature decoder and a 16-bit latch (in normal operating mode) or

32-bit latch (in enhanced operating mode) for the zero pulse can be read,

set or enabled. Incremental encoders with alarm output can be connected

at the negative switching status input of the interface. The measurement

of period and frequency is possible. The gate input allows the locking of

the counter, alternatively with a high or low level. The latch input is similarly

configurable and evaluates high or low levels. The AKT2G-ENC-190-000 can

also be used as bidirectional counter on channel A; channel B specifies the

count direction.This Up/down counter 24 VDC, 100 kHz, 32 bit counter

depth counts binary pulses, and transmits the counter state, in an electrically

isolated form, to the higher-level automation device.

The AKT2G-DN-002 EtherCAT Terminal can alternatively be operated as:

• a single-channel counter (32 bit) that can be toggled between counting up

and down via the U/D input (delivery state)

• a single-channel counter (32 bit) that is controlled via the gate connection

• two separate logic counters (32 bit) that can count in one direction only with

the Clock 1 and Clock 2 inputs

The signal state of the inputs and outputs is indicated by light emitting diodes.

The two outputs (Output 1 and Output 2) are switched in relation to the counter

value and can thus be used as fast control signals for field devices.

The AKT2G-DN-002 supports distributed clocks, i.e. the input data can be monitored

synchronously with other data that are also linked to distributed clock terminals.

The accuracy across the system is < 100 ns.

The AKT2G-AC-FAN-001 fan cartridge is used for forced ventilation

within the terminal housing and ensures better heat dissipation from

the housing. It extends the thermal operating range of EtherCAT

Terminals and offers a wide range of new application options.

The cartridge is installed on the underside of the terminal segment

and covers a width of four standard terminals (4 x 12 mm).

It consists of the fan, an installation plate, a terminal strip (24 V DC,

0 V DC, diag, mode) and a bracket for attachment on different

terminal housings.

The analog input terminals process signals in the range between

and 20 mA. The currentis digitised to a resolution of 12 bits andis

transmitted, in an electrically isolated form, to the higher-level

automation device. In the 4-channel Bus Terminal, the four inputsare

2-wire versions and have a common ground potential. The reference

ground of the inputs is the internal ground. The 8-channelvariant

combines all eight channels in one housing and is particularly suitable

for space-saving installation in control cabinets. Theuse of single

conductor connection technology enables the connection of

multi-channel sensor technolgy with minimum spacerequirements.

The reference ground for allinputs is the OV power contact. In both

Bus Terminals the power contacts are connectedthrough. Overload

is detected in both variants. The terminal status is relayed to the

controller via the standard-bus. The LEDs indicatethe data exchange

with the Bus Coupler as well as overload or wire breakage.