Product Overview

© Danfoss | DCS | 2019.04
9.1 Connection
Note:
When MMI is not connected to
EKE via telephone cable the
autodetection feature of the EKE
CAN address will not work.
Therefore check the following
MMIGRS2 setting:
1) enter BIOS menu pressing and
holding X + Enter keys for 5 s
2) select “MCXselection”->
”Manual Mode” and set the CAN
address of the EKE you wish
to connect to.
CAN H-CAN R connection should
be done only on the rst and
second element of the network.
CANbus requires both ends of
the bus to be terminated by a120
ohm resistor. EKE 1A and EKE 1B
already include the termination.
On EKE 1C and MMI, the
termination must be included by
shorting CAN R and CAN H with a
wire.
MMIGRS2 (Back view)
Danfoss 80G313.10
MMIGRS2
ACCCBI080G0075
CAN RJ
–/~ +/~ GND Bat+ A1 A2 B1 B2 NO1 C1 NC1 –/~ +/~ GND Bat+ A1 A2 B1 B2 NO1 C1 NC1
COM 5V+ DI2 DI1 COM AI4 AI3 AI2 DI3 COM
CAN RJ
COM 5V+ DI2 DI1 COM AI4 AI3 AI2 DI3 COM
CAN RJ
Superheat controller
EKE 1A - 080G5300
2-way screw connector for
power supply
4-way screw connector for
CANbus network
RJ
Termination Jumper
between R and H
CAN connector
For cable >3m (only EKE 1C)
Danfoss 34G306.10
Data sheet | Superheat controller type EKE 1A, EKE 1B, EKE 1C
DKRCC.PD.RS0.A4.02 | 27
EKE 1A 1B 1C
Applicable
9.0 User interface:
Display MMIGRS2
MMIGRS2 is a remote interface. It’s tted with a graphic display. The connection with each EKE
controller is made through the CAN RJ or CANbus network. All the information about the user
interface is loaded inside the EKE controller; that’s why there is no need of programming the
MMIGRS2 interface. MMIGRS2 is powered externally or from the controller which it is connected to
and automatically shows its user interface.
The menu displays are dynamic. A simple application with few connections will give a setup with few
settings while application with many connections will give a setup with many settings.