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Mercury 2 & Intuitive EPR Stepper Valve
Installation & User Guide
For Products: - PR0710, PR0711, PR0720, PR0721
Resource Data Management Ltd
Glasgow, Scotland, G52 4NZ, UK
Controller
Resource Data Management
UK OFFICE
80 Johnstone Avenue,
Hillington Industrial Estate,
+44(0)141 810 2828
sales@resourcedm.com
US OFFICE
Resource Data Management Inc
100 North Sixth Street,
Suite 820C,
Minneapolis, MN 55403, USA
Tel +1 612 354 2923
Fax +1 612 208 0922
usasales@resourcedm.com
Mercury
PR0712-EPR
PR0713-EPR
Intuitive
PR0752-EPR
PR0762-EPR
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Table of Contents
Summary of Contents for Resource Data Management PR0712-EPR
- Page 1 Controller Installation & User Guide For Products: - PR0710, PR0711, PR0720, PR0721 Resource Data Management UK OFFICE US OFFICE Resource Data Management Ltd Resource Data Management Inc 80 Johnstone Avenue, 100 North Sixth Street, Hillington Industrial Estate, Suite 820C, Glasgow, Scotland, G52 4NZ, UK Minneapolis, MN 55403, USA +44(0)141 810 2828...
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Page 2: Table Of Contents
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Table of Contents: THE MERCURY & INTUITIVE RANGE ......................4 Variants ................................4 Mercury Mk2 6-5 .............................. 4 Intuitive Mercury 6-5 ............................4 Compatible Displays ............................4 Configuration ..............................4 Compatible Network Interfaces ........................5 Front Display Features ............................ - Page 3 Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Remote Commands ............................21 Specification ..............................22 Power requirements ............................22 General................................22 Valve Output ..............................22 Relay Specification ............................22 Inputs................................23 Switched Resistor Example Wiring ....................... 23 Installation ................................ 23 Dimensions ..............................
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Page 4: The Mercury & Intuitive Range
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide The Mercury & Intuitive Range From Resource Data Management The Mercury Mk2 controller is primarily intended for use in refrigeration display cabinets or coldroom applications. The controller will operate an evaporator pressure regulator stepper valve based on the average value of the evaporator air on and air off probes. It has outputs to control lights, fans, a suction line valve, and defrost control. -
Page 5: Compatible Network Interfaces
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Compatible Network Interfaces Mercury and Intuitive Mercury controllers are capable of connecting to either a TCP/IP local area network, an RS485 Genus compatible network, an RDM wireless mesh network or they can be used in standalone mode with no network output. To connect to a network you must add the correct communications module. -
Page 6: Connections
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Connections Mercury Mk2 6-5 Input and Output connections are made to the back of the controller, the RS232 communication port is on the side. The diagram shows the connection detail. Inputs and outputs are assigned according to the chosen configuration. See Input/Output tables for further details on connections. -
Page 7: Intuitive Mercury Stepper Valve With Daughter Board Option
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Intuitive Mercury Stepper Valve with Daughter Board Option The Intuitive Mercury EPR Stepper Valve controller can be purchased with optional daughter boards to read suction pressure which is then used to calculate evaporator temperature and superheat, this is used for monitoring purposes only and does not have any control or alarm functionality. -
Page 8: Input And Output Allocation Tables
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Input and Output Allocation Tables The following tables indicate; on a controller type basis, the functions of the inputs and outputs. Also shown are the digital inputs that are derived by switching in a fixed value resistor across the input. Input / Output allocation table TYPE Remote Case... -
Page 9: Setup Function Menu (Common To All Types)
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Setup Function Menu (Common to all types) Display Option Explained in Paragraph Display Option Explained in Paragraph View Inputs / Outputs and Input / output table Set/view network Network Configuration States configuration PArA Set/View Parameters... -
Page 10: Display
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Display From the function menu scroll to and select diSP. Press enter and one of the following values will be shown: - 0. Controller display will show the whole number and tenths value of a temperature reading. (Default) 1. - Page 11 Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Number Parameter Range Step Units Default LT Default HT Type Type 3&4 5&6 P-25 Log Alarm Delay 00:00 to 99:00 01:00 mm:ss 20:00 20:00 P-26 Log UT Alarm -49 to 60 (-56.2 to 140) -35 (-31) -1 (30.2)
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Page 12: Parameter Descriptions
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide 22 = R502. 23 = R503. 24 = R507. 25 = R717. 26 = R290 (Propane). 27 = R744. 28 = R407F. 29 = R410A Parameter Descriptions Number Parameter Description P-01 Cut-in Temp The target Temperature at which the valve will start opening. -
Page 13: See: Valve State - Overdriving
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide off by changing this parameter to 0 and then back to the desired service interval. This process also resets the Run Hours value to 0. To view the current Run Time value refer to the I/O list. P-19 Switch Resistors Enables switched resistors to be used for Plant Faults, External Defrosts, Case Clean, Man Trap, Door... - Page 14 Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide P-44 Def Terminate The defrost will terminate (defrost control relay off) when the temperature of the defrost termination probe reaches this value. If the "defrost termination" probe is not fitted, defrost termination will occur when: - The "coil in"...
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Page 15: Holding Current
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Holding Current If using a type of valve that requires a holding current you must select “Other” at P-30 and make sure parameters P-31, P-32, P-33, P-34 and P35 are all set to the correct values. An example of this is the Carel E V valve which requires a holding current, although it is a Carel valve and has the same settings for “Step Max”, “Step Close”, “Step speed”... -
Page 16: Superheat Monitoring Using Pressure
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Superheat Monitoring Using Pressure There are several ways to use the suction pressure to calculate the evaporator in temperature, this is used for information only and has no control or alarm functionality. Local Daughter Card (P17 set to IoBrd) A suction transducer can be connected directly to the input of the daughter card, the controller will calculate the evaporator temperature from the suction pressure, and along with the suction temperature probe local to the controller, the superheat is calculated. -
Page 17: Fan Delay After Defrost
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Fan Delay after Defrost The fans will come back on when: - The fan delay time has elapsed if the “fan delay mode” is set to time If the fan delay mode is set to “temp”, the fans will come on when the defrost termination probe reaches the fan delay set point, or on the time parameter, whichever occurs first. -
Page 18: Ip Futura Module / Intuitive Internal Ip Network Card
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Pressing the Enter button to select the ClrA option will cause the ‘ClrA’ message to flash for confirmation, if the network type is set to Genus compatible. Press the Enter button to execute the command, Up or Down buttons to cancel. If the network type is not set to Genus compatible then the ClrA message will not flash and the ESC option can be used to exit the menu. -
Page 19: Viewing
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Viewing Apart from setting up the controller, you can also view the status of the inputs and outputs and controller states. From the function menu, select “I/O”, press enter. You can now scroll through the IO table as set out below. Inputs and outputs that do not apply to a particular controller type will be greyed out. -
Page 20: Alarm Messages
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Alarm Messages The following alarms and messages can appear on the Mercury display. Display System status Display System status Message Message Control Fault FAnS ONLy Controller in Fans Only Prb1 Probe 1 Fault LitS ONLy Controller in Lights Only Prb2... -
Page 21: Remote Commands
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Remote Commands The following commands can be used by a Data Builder program: - Command Value to send Description Conditions Defrost Command Initiates a defrost cycle Defrost mode: remote Defrost Command Terminates the defrost Defrost mode: remote Defrost hold: On... -
Page 22: Specification
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Specification Mercury Mk2 Stepper Controller Intuitive Mercury Stepper controller PR0712 & PR0713 PR0752 & PR0762 Power requirements Supply Voltage Range 24 Vac ±10% or 24Vdc ±10% 24 Vac ±10% or 24Vdc ±10% Supply Frequency 50 - 60 Hz ±10% or dc 50 - 60 Hz ±10% or dc... -
Page 23: Inputs
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Inputs Input resistance: 3.01K Ohms (for PTC or NTC type probes) Input type PT1000 or NTC2K or NTC2K25 or NTC10K (selectable) Comms: RS232 with flow control Switched Resistor Example Wiring Example of resistor fitted on a probe input. Probe Ground Probe Signal Connect to remote switch or relay... -
Page 24: Intuitive Mercury Mounting Instructions
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Intuitive Mercury controller Intuitive Mercury Mounting Instructions Three clips fix the Intuitive Mercury securely to DIN rail. Pull each clip until it “clicks” to remove the controller. Each clip has a mounting hole to provide an alternative fixing mechanism to DIN mounting. -
Page 25: Revision 1.2A
Mercury 2 & Intuitive Mercury EPR Stepper Installation Guide Appendix 3 Step Speed (Frequency Hz) When setting the Step Speed, P-33, the following table applies. Step Speed Entered Actual Speed Set (Hz) Step Speed Entered Actual Speed Set (Hz) 500 and above 86 to 90 251 to 333 81 to 85...