6 ethernet, 1 bus topology, Bus topology – IMP Pumps NMTC module User Manual

Page 21

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Relay configuration number can be modified by either the web interface, Modbus register 012 or the
Mode switch.

6 Ethernet

Terminal

designation Description
MODE

Can be used to reset network configuration

LED1 / LINK Slowly blinking when module is powered, permanently lid when link established.

Ethernet

10BASE-T RJ-45 connector.

LED2 / ACT Indicates Ethernet activity or Modbus reception.

The communications module has a built in web server which allows you to access your pump directly to
an existing Ethernet connection. Direct connection to a computer is also possible with a cross over
cable.

The web server uses HTML pages to set/view:

• Regulation mode settings
• Regulation parameters (power, RPM, head, flow, efficiency)
• Relay settings
• External control inputs
• Current and previews error
• Pump statistics (power consumption, run time and other).

6.1 Bus topology

0

Error

[default]

Only active when the pump is powered

up and detects a problem with

operation.

NC NO

C

1

Ready

The relay signal is active when the pump

is ready for operation.

NC NO

C

2

Operation

The relay signal is active as long as the

pump is operating. If the pump comes to

a stop or an error occurs, relay will

deactivate.

NC NO

C

-

Relay output not active.

NC NO

C

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