26
RS8GV202 © Danfoss 2016-06
AK-LM 340
Extension module AK-XM 208C
Function
The module contains:
8 analog inputs for sensors, pressure transmitters, voltage signals
and contact signals.
4 outputs for stepper motors.
Supply voltage
The supply voltage to the module comes from the previous
module in the row.
The supply voltage to the valves must be from a separate supply,
which must be galvanically separated from the supply for the
control range. 24 V d.c. +/-20%.
(Power requirements: 7.8 VA for cont 1.3 VA per valve).
A UPS may be necessary if the valves need to open/close during a
power failure.
Light-emitting diodes
There is one row with LED’s. It indicate the following:
• Voltage supply to the module
• Communication active with the bottom PC board (red = error)
• Status of outputs AO1 to AO4
Output:
24 V d.c.
I
max.
= 500 m A / coil
20-500 step/s
Separate voltage
supply is required
max. 10 V
24 V d.c. 13 VA
