Danfoss AK-CC55 Installationshandbuch - Seite 7
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Supply voltage
230 V AC or 115 V AC
DO1
AKV valve
Connection of expansion valve type AKV, AKVA, AKVH or AKVP.
The coil must be a 230 V or 115 V AC coil.
DO2
Alarm
There is a connection between terminal 10 and 12 in alarm
situations and when the controller is without power.
Light, Rail heat, Compressor, Night blind
There is connection between terminal 10 and 11 (10 and 12 at
light) when the function is on.
Suction line valve
There is connection between terminal 10 and 11 when the
suction line must be open.
DO3
Compressor, Rail heat, Defrost, Drain valve, Humidity
There is connection between terminal 13 and 14 when the
function must be active.
DO4
Defrost
There is connection between terminal 15 and 16 when
defrosting takes place.
Hot gas
There is connection between terminal 15 and 16 when the hot
gas valves must open.
Please note: when replacing AK-CC550 with AK-CC55, wires must
be switched.
DO5
Light
There is connection between terminal 18 and 20 when the
function must be active.
Rail heat
There is connection between terminal 18 and 19 when the rail
heat must be on.
DO6
Fan
There is connection between terminal 21 and 22 when the fan
is on.
DO2-DO6 + AO1 and Application 9
Here, the different outputs can be custom defined in q02-q09
DI3
Digital input signal.
The signal must have a voltage of 0 / 230 V AC (115 V AC)
The function is defined in o84.
Display (RJ12 plug)
If external readings/operation of the controller are required, a
display can be connected. If there is no display on the front, two
external displays can be connected.
For one display the max. cable length is 100 m.
For two displays the sum of the two cable lengths must not
exceed 100 m.
© Danfoss | DCS (vt) | 2019.07
Electric noise
Cables for sensors, low voltage DI inputs and data communication
must be kept separate from other electric cables:
- Use separate cable trays
- Keep a distance between cables of at least 10 cm
- Long cables at the low voltage DI input should be avoided
Installation considerations
Accidental damage, poor installation, or site conditions, can give
rise to malfunctions of the control system, and ultimately lead to a
plant breakdown.
Every possible safeguard is incorporated into our products to
prevent this. However, a wrong installation could still present
problems. Electronic controls are no substitute for normal, good
engineering practice.
Danfoss will not be responsible for any goods, or plant
components, damaged as a result of the above defects. It is the
installer's responsibility to check the installation thoroughly, and
to fit the necessary safety devices.
Special reference is made to the necessity of signals to the
controller when the compressor is stopped and to the need of
liquid receivers before the compressors.
Your local Danfoss agent will be pleased to assist with further
advice, etc.
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