Danfoss OP-MPHM007NFP00G Optyma Plus Controller Instruction Manual

Danfoss OP-MPHM007NFP00G Optyma Plus Controller

Controller Installation

Annex

Optyma™ Plus condensing units are pre-parameterized, depending on the model of compressor mounted and the type of refrigerant. Controller parameter “o30” for refrigerant is Factory Preset as per below table and must be changed for other refrigerants (see chapter Commissioning – Quick start of the unit / Refrigerant change).

Code (controller parameter o61): Code (Regler Parameter o61)/ Code (controller parameter o61)

Model :Model

Code-no. : Art-Nr

Compressor : Compresseur

Refrigerant:

Settings are adjustable

Controller parameter o61 (A2L models only)

MLZ Scroll compressors = 18

A1| R134a, R404A/R507, R452A, R448A, R449A & R513A| Refer above table

Optyma™ Plus equipped with fixed speed compressor

Optyma™ Plus INVERTER equipped with variable speed compressor

Legend

A1 Controller (option)
A2 EMI lter (control circuit)
A3 EMC/RFI Filter (Compressor)
A4 Frequency Converter
B1 Condensing pressure transducer
B2 Suction pressure transducer
B3 High pressure switch
B4 Low pressure switch
B5 Fan speed controller/pressure switch (option)
C1 Start capacitor (compressor)
C3 Run capacitor (fan)
E1 Crankcase heater
F1 Fuse (control circuit)
K1 Start Relay
K2 Contactor
M1 Compressor
M2 Fan motor
Q1 Main switch
R1 Ambient temp. sensor
R2 Discharge temp. sensor
R3 Suction temp. sensor
R4,R5 Auxiliary temp. sensor
R7 Oil separator heater
R8 Potentiometer
S1* Room thermostat (option)
X Terminals

Commissioning

Electrical installations

• Arrange electrical connections as mentioned in the table below
• Remove temporarily bridge DI1 (terminals 24 – 25 of the controller) to get access to parameters and values of the controller without starting the condensing unit

Room Thermostat control without Pump Down function

• Connect room thermostat(24 – 25 i.e. DI1) to these
  terminals

• Connect power supply to main switch acc. wiring
  diagram, located in front door inner side

Pump Down control with factory delivered low pressure transmitter

• Connect power supply to main switch acc. wiring diagram, located in front door inner side
• Increase the Setting of controller Par. c33 (Pump Down CUT-OUT value):
  e.g. Piston : 0,7bar
  e.g. Scroll : 1,7bar
  Note: To avoid low pressure alarm, the Setting of c33 and
  r23 (for INVERTER units) should be higher than c75

Commissioning

Electrical installations

• Arrange electrical connections as mentioned in the table below
• Remove temporarily bridge DI1 (terminals 24 – 25 of the controller) to get access to parameters and values of the controller without starting the condensing unit

Room Thermostat control without Pump Down function

• Connect room thermostat(24 – 25 i.e. DI1) to these terminals
• Connect power supply to main switch acc. wiring diagram, located in front door inner side

Pump Down control with factory delivered low pressure transmitter

• Connect power supply to main switch acc. wiring diagram, located in front door inner side
• Increase the Setting of controller Par. c33 (Pump Down CUT-OUT value):
  e.g. Piston : 0,7bar
  e.g. Scroll : 1,7bar
  Note: To avoid low pressure alarm, the Setting of c33 and
  r23 (for INVERTER units) should be higher than c75

Main display (after controller start-up)

• By default the controller’s screen displays the Evaporating temp. in deg. C
• Press the lower button to see the condensing temp. in eg. c,
• The display returns to its default screen after few seconds if no key is pressed

Parameter Menu

• Press upper button for 5 seconds to get access to parameter menu.

• After entering parameters menu “r05” will be shown on display.

• Press upper or lower button to go to other parameters.

• Press middle button to see the value of any parameter. 3 LEDs on controller will start flashing after this step.

• Press upper or lower button to change the value of that parameter. Press middle button to save the value.
  Or the value will be stored after 20 seconds if no key is pressed after changing the value.

• The display returns to its default screen if no key is pressed for 20 seconds.

Quick start of the unit / Refrigerant change

• Optyma™ Plus new generation is preset, depending on the compressor model and refrigerant type. In the case of a “multi-refrigerant” compressor, the controller of the condensing unit is Factory Preset as per above table (see table on page 4). If this factory setting fits for the requirement of your application, no controller parameter to be changed.
• For refrigerant change go into parameter menu (hold upper button for 5 seconds).
• Select parameter r12 from parameter menu by pressing lower button.
• Select r12 by pressing middle button, change value to ‘’0’’ and save.
• Now select the parameter ‘’o30’’ from parameter menu and set its value as per required refrigerant to 3 (R134a), 17 (R507), 20 (R407C), 19 (R404A), 21 (R407A), 37 (R407F), 40 (R448A), 41 (R449A), 42 (R452A), 36 (R513A)
• Again select parameter r12 and set its value to 1.
• Condensing unit will start after this step as per logic.
• After 20 seconds the display returns to the evaporation temperature in °C, the new refrigerant and all relevant parameters are changed

Pump Down – Function

• A “pump-down” limit can be activated with the setting of parameter c33
• To avoid unwanted low pressure alarms, the setting of this parameter should be higher than the low pressure cut-out limit parameter c75, … e.g. below
  

Day/Night – Function

In some areas it may be necessary to reduce noise level during night time.
This is possible with the “Day / Night” function of the Optyma™
Plus controller which limits the fan speed for all units and the compressor speed for INVERTER units. For activation follow the next steps …

• Activate the parameter menu (press upper button min. 5 sec.)
• Select parameter “r13” Night Offset (temperature offset related to condensing temperature setpoint for daytime which is parameter “r29”)
• Push middle button and set the desired value, e.g. 005 for 5 Kelvin
• Confirm the value with a short press on the middle button. Do the same with the next parameters which are required for the “Day / Night” – function …
• Select and set parameter “t17” Day start (hours), e.g. 006 for 06:00 a.m.
• Select and set parameter “t18” Night start (hours), e.g. 022 for 22:00 p.m.
• Select and set parameter “t07” Clock setting (hours), e.g. 011 for 11:xx a.m.
• Select and set parameter “t08” Clock setting (minutes), e.g. 035 for 11:35 a.m.
• Select and set parameter “t45” Clock setting (date), e.g. 010 for 10.xx.xx
• Select and set parameter “t46” Clock setting (month), e.g. 004 for 10.04.xx
• Select and set parameter “t47” Clock setting (year), e.g. 012 for 10.04.12
• All values will be stored with the middle button or after 20s without pressing any button

Service and Maintenance

Main Display

(Evaporating and Condensing Temperature, Setpoint Temperature Difference)

• The controller displays the evaporation temperature in °C (main screen)
• It will show condensing temperature in °C after pressing short the lower button
• The difference between condensing temp. and ambient temp. in deg. C can be shown by pressing middle button.
It can be modified by pressing upper or lower button.
• The display returns to main screen after a few seconds without any action on the buttons

Operating Parameters

• Operation conditions of the condensing unit can be displayed in the parameter menu by selecting parameters “U” … below some examples
  u01| Condensing Pressure
  ---|---
  u10| Status of DI1 (room thermostat)
  u21| Superheat
  u37| Status of DI2 (frequency converter alarm)
  u52| Compressor Capacity
  U22| Condensing Temperature
  U23| Evaporation Pressure
  U24| Evaporation Temperature
  U25| Ambient Temperature
  U26| Discharge Temperature
  U27| Suction Temperature
  U44| Voltage on A01
  U56| Voltage on A02

Alarm and Error Messages

• In case of “malfunctions” 3 small LED symbols will ash on the controller’s screen. Acknowledge with a short press on upper button. Here some examples below …
  A2| Low Suction Pressure Alarm
  ---|---
  A17| Safety Input Alarm (DI3: High condensing
  / low suction pressure)
  A96| Discharge Gas Temperature High
  A97| Digital Input Alarm (DI2: Frequency
  converter alarm)
  E20| Condensing Pressure Transmitter Error
  E31| Ambient Temperature Sensor Error
  E32| Discharge Temperature Sensor Error
  E33| Suction Gas Temperature Sensor Error
  E39| Evaporating Pressure Transmitter Error

Repair

Controller failure

(if the controller fails, there is a possibility to run the condensing unit in “manual” mode. Proceed as follows)

Fixed speed units:

See wiring diagrams on page 5

• Disconnect the condensing unit from power supply (turn hardware main switch off)
• Remove wire from controller terminal 22 (safety input DI3) and terminal 25 (room thermostat DI1) and put them together
• Remove wire from controller terminal 24 (room thermostat DI1) and terminal 11 (compressor supply) and put them together
• Remove wire 6* and connect it with terminal bridge for wire 11 and 24.
• Remove wire from terminal 14 (crankcase heater) and connect it to compressor contactor K2 terminal 22
• Remove wire from controller terminal 12 (supply crankcase heater), extend this wire approximately 40cm and connect it to compressor contactor K2 terminal 21
• Pay attention: Remove the big terminal block from the controller or remove the complete controller
• Connect the condensing unit back to power supply (turn hardware main switch on)

Variable speed units:

See wiring diagrams on p. 5.

• Disconnect the condensing unit from power supply (turn hardware main switch off)

• Remove wire from controller terminal 22 (safety input) and terminal 6* (fan) and put them together

• Remove wire from controller terminal 10 (compressor relay) and terminal 24 (room thermostat) and put them together

• Remove wire from controller terminal 11 (compressor relay) and terminal 25 (room thermostat)
  and put them together

• Remove wire from Inverter terminal 50 and connect to Potentiometer terminal 3

• Remove wire from Inverter terminal 53 and connect to Potentiometer terminal 2

• Remove wire from Inverter terminal 55 and connect to Potentiometer terminal 1

• Remove wire from terminal 14 (crankcase heater) and connect it to compressor contactor K1 terminal 22

• Remove wire from controller terminal 12 (supply crankcase heater), extend this wire approximately 40cm and connect it to compressor contactor K1 terminal 21

• Pay attention: Remove the big terminal block from the controller or remove the complete controller

• Connect the condensing unit back to power supply (turn hardware main switch on)

Option: A fan pressure switch or fan speed controller can be connected in series to wire n°6

Factory reset

(all factory parameters can be restored by the following procedure)

• Turn OFF the main power switch
• While holding simultaneously the up and down button, turn ON the main switch
• Message FAC is displayed, means “FACTORY RESET” restores factory settings
• After a short time message “typ” appears on the screen
• Activate parameter menu and go to parameter o61 (unit type)
• Enter the value 1 to 57 depending on the type of condensing unit (see table 1 on page 3)
• Store the entered value by pressing the middle button of the controller
• After 15 seconds without action the message “ref” appears on the screen
• Activate parameter menu and go to parameter o30 (refrigerant)
• Change the value to 3 (for refrigerant R134a),17(R507), 20(R407C), 19(R404A), 21(R407A), 37(R407F),
  40(R448A), 41(R449A), 42(R452A) or 36 (R513A)

For INVERTER units only:

• Turn OFF the main power switch

• While holding simultaneously the up and down button, turn ON the main switch

• Message FAC is displayed, means “FACTORY RESET” restores factory settings

• After a short time message “typ” appears on the screen

• Activate parameter menu and go to parameter o61 (unit type)

• Enter the value 1 to 57 depending on the type of condensing unit (see table 1 on page 3)

• Store the entered value by pressing the middle button of the controller

• After 15 seconds without action the message “ref” appears on the screen

• Activate parameter menu and go to parameter o30 (refrigerant)

• Change the value to 3 (for refrigerant R134a),17(R507), 20(R407C), 19(R404A), 21(R407A), 37(R407F),
  40(R448A), 41(R449A), 42(R452A) or 36 (R513A)
  For INVERTER units only:

• Set parameter c71 to 2 (variable speed compressor)

• Set parameter o37 to 7 (frequency converter alarm on DI2)

• Store the entered value by pressing the middle button of the controller

• Go to parameter o67 (store values as factory setting)

• Change the value to “on”

• Validate the parameter entered by pressing the middle button of the controller

• After 15 seconds without action the message “OFF” appears on the screen

• Activate parameter menu and go to parameter r12 (main switch)

• Change the value to 1 (condensing unit will start if cooling demand from cold room controller)

• The “Day / Night” function must be reprogrammed too (see chapter Commissioning – Day/Night – Function)
  For Liquid injection models only (OP-xxxxxxxxxP02E), if o30 value is 19= R404A or 40=R448A or 41=R449A in controller,

• Push the upper or lower button to nd parameter code r84.

• Push the middle button until the value for this parameter is shown as 125

•  Push the upper button to select the new value: 130.

Controller Replacement of a unit on site

• Turn OFF the main power switch
• Remove the new controller (remove all plugs, 2 x I-type screws and controller)
• Install the new controller
• Turn ON main power switch again, no factory reset needed
• After a short time message “typ” appears on the screen
• Follow same steps as shown in preceding chapter fifth row and following
  spare part code controller SINGLE pack: 118U3465

Control

Control of condensing pressure

• The setpoint condensing temperature is calculated from the measured ambient temperature plus an
  adjustable Temperature Offset (called Reference) and controlled by the fan speed

• Factory setting of Reference = 8.0K

• The Reference is accessible by pressing short the middle button of the controller

• When Reference is shown, it can be modified with the upper or lower button

• Additionally to this the control of the condensing temperature can be limited by following parameters:
  “r82” = minimal condensing temperature (factory set: 10.0°C)
  “r83” = maximal condensing temperature (factory set: 40.0°C)

Control of crankcase heater

• The controller optimizes the regulation of the crankcase heater itself. The heating power depends on the ambient temperature and suction pressure and is controlled by Pulse Width modulation
• There is no change of parameters “P45”, “P46” and “P47” necessary on site

Control of Fan Speed

• The fan speed is controlled by PI-control, depends on the actual value and the setpoint of the condensing temperature
• There is no change of parameters “F14” and “F21” to be provided on site

Safety Parameter “Low Pressure” for R448A / R449A / R452A

Safety Parameter “High Pressure” for R448A / R449A / R452A

Documents / Resources

| Danfoss OP-MPHM007NFP00G Optyma Plus Controller [pdf] Instruction Manual
OP-MPHM007NFP00G Optyma Plus Controller, OP-MPHM007NFP00G, Optyma Plus Controller, Plus Controller, Controller
---|---

References

• Read more on our commercial compressors | Danfoss | Danfoss

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