Technical Brochure
Extension module 4AI + 4AO
AK-XM 103A
ADAP-KOOL® Refrigeration control systems
Introduction
Application
The extension module should be used with a controller in the
same serial connection if there is not enough connections on the
controller itself.
Function
The module contains:
• 4 analog inputs for temperature sensors, pressure transmitters,
voltage signals and contact signals.
• Four analogue outputs (0-10 V) for speed control of e.g. frequency converters
Installation
• The module is connected to the plug from the previous module
in the sequence.
Supply voltage
The supply voltage to the module comes from the previous module in the row.
Supply voltage to a pressure transmitter can be taken from either
the 5 V output or the 12 V output depending on transmitter type.
Light-emitting diodes
Only the two top LED’s are used. They indicate the following:
• Voltage supply to the module
• Communication with the controller is active (red = error)
Galvanic isolation
There are three groups, and the signals should not be mixed up:
• Inputs and 5V and 12V supplies for the signals connected to the
inputs.
• Output 1 and 2
• Output 3 and 4
Connections
Max. 10 V
Max. 2.5 mA / AO
2 Technical brochure RD8BS202 © Danfoss 2018-11 AK-XM 103A