Danfoss EIM 365 User Manual page 14

Superheat controller, type EIM 365 (PV01)
Standalone configuration
The EIM 365 can be set in a standalone configuration by setting the modbus register i.e "HWMainSwitch" to 1. This
will setup the S4 input to be used as a Regulation On / Off switch. Note that only external control of the EIM 365/336
in this configuration is through the Regulation On / Off switch.
 NOTE:
That the only external control of the EIM 365/336 in this configuration is through the Regulation control On / Off
switch. It is not possible to manually control the opening degree or change settings, and the defrost and Te control
modes are not available.
Table 9: Related parameters
Symbolic name
---HW Main Switch
Manual Control
In this mode The EIM 365 is acting as stepper motor valve driver, where valve opening degrees is sent using
Modbus. In this mode, no sensor is needed, and no superheat control is performed, and no safety features are
present.
Table 10: Manual control
EIM
Applicable
When setting the manual control register "o18 Manual ctrl" to 1, the controller will be in manual control. During this
mode the opening degree is controlled by setting the "Manual OD%".
 NOTE:
• On using system configuration, it is necessary to read the "Ctrl Stats" register 3100 continuously, failure to do so
will start the MSS regulation automatically irrespective to the different status of the regulation On /Off switch
• The manual control mode does not depend on the "r12 Main Switch" and will set the opening degree regardless of
its state.
• Setting "o18 Manual ctrl. " to 0 again, the controller will go to the default control, and will open or close from the
current opening degree
Table 11: Related parameters
Symbolic name
o18 Manual ctrl.
o45Manual OD%
Defrost Mode
EIM
Applicable
© Danfoss | Climate Solutions | 2022.09
PNU
64100
365
✓
PNU
2075
2064
365
✓
Description
0= no external main switch
1 = regulation control On /Off switch
Description
0 = Superheat control
1 = Manual control
Manual opening degree in %.
0 = fully closed.
100 = fully open.
BC415322248492en-000101 | 14