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Daikin MD5 Operation Manual

Variable frequency drive controller
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Operations Manual
Daikin MD5
Variable Frequency Drive Controller
OM 1191
Group: Applied Air Systems
Part Number: OM 1191
Date: February 2013

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Summary of Contents for Daikin MD5

  • Page 1 Operations Manual OM 1191 Group: Applied Air Systems Part Number: OM 1191 Date: February 2013 Daikin MD5 Variable Frequency Drive Controller...

  • Page 2: Table Of Contents

    MD5 HVAC Control Panel Features . . . . . . . . . . . . . . . . . .
  • Page 3 Daikin Applications . . . . . . . . . . . . . . . . . . .

  • Page 4: Safety

    DC capacitors (i .e . DANGER power-ups by applying power) is five in ten minutes. The MD5 adjustable speed AC drive should ONLY be installed by a qualified electrician. WARNING Never attempt to repair a malfunctioning MD5; contact the...

  • Page 5: Control Panel

    The modes • Start-up assistant to facilitate drive commissioning are: • Copy function for moving parameters to other MD5 drives • Standard Display Mode – Shows drive status information • Backup function for saving parameter sets and operates the drive .

  • Page 6: Control Panel

    • Lower corners – show the functions currently assigned to the two soft keys . • Lower middle – displays the current time (if configured to show the time) . OM 1191 • MD5 VFD www .DaikinApplied .com...
  • Page 7 99 Start-up data, 10 Start/Stop/Dir, 11 Reference Select, 20 Limits, 21 Start/Stop, 22 Accel/Decel, 26 Motor Control and 30 Fault Functions . To restore the default factory settings, select the application macro HVAC Default . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 8: Start Up

    99 Start-up data, 10 Start/Stop/Dir, 11 Reference Select, 20 Limits, 21 Start/Stop, 22 Accel/Decel, 26 Motor Control and 30 Fault Functions . To restore the default factory settings, select the application macro HVAC Default . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 9: Application Macros

    9902 APPLICMACRO . By default, HVAC Default E-Clipse (value 1) is the enabled macro . ** Daikin users must use the HVAC Defaults General Considerations The following considerations apply for all macros: • When using a direct speed reference in AUTO mode,...
  • Page 10 HVAC Default . Control wiring Each macro has specific requirements for control wiring. For general details about the MD5 control wiring terminals, see Control Terminal Descriptions on page 85. Specific wiring requirements are included with each macro description .

  • Page 11: Hvac Default Macro

    HVAC Default macro This macro provides the factory default parameter settings for the MD5-UH . Factory defaults can be restored at any time by setting parameter 9902 to 1 . The diagram below shows typical wiring using this macro . When using direct speed reference in...

  • Page 12: Parameters

    APPLIC MACRO -3…15, 31  DEFAULT) Selects an application macro. Application macros automatically edit parameters to configure the MD5 for a particular application. See Application macros for application macro descriptions . 1= HVAC DEFAULT 2= SUPPLY FAN 3= RETURN FAN...

  • Page 13: Group 01: Operating Data

    • The counter value is accumulated till it reaches 65535 after which the counter rolls over and starts again from 0 . • Can be reset by pressing UP and DOWN keys simultaneously when the control panel is in the Parameters mode . MD5-UH User’s Manual 1-83 Parameters 0 .0…100 .0%...
  • Page 14 • Units and scale defined by PID parameters. Unit and scale defined 0130 PID 1 FBK by par . — — 4006/4106 4007/4107 The PID 1 controller feedback signal . • Units and scale defined by PID parameters. OM 1191 • MD5 VFD www .DaikinApplied .com...
  • Page 15 1 = 2 s — 23:59:58 The drive’s accumulated power-on time in 2 second ticks (30 ticks = 60 seconds) . • Shown in format hh .mm .ss . • Cannot be reset . www .DaikinApplied .com OM 1191 • MD5 VFD...
  • Page 16 • The counter value is accumulated till it reaches 6553 .5 (the counter does not roll over) . • Can be reset with parameter 4509 ENERGY RESET (resets all energy calculators at the same time) . • CO conversion factor is set with parameter 4507 CO CONV FACTOR . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 17: Group 03: Actual Signals

    REV_REF REQ_CTL REV_ACT REQ_REF1 PANEL_LOCAL REQ_REF2 FIELDBUS_LOCAL REQ_REF2EXT EXT2_ACT ACK_STARTINH FAULT ACK_OFF_ILCK 0304 FB STS WORD 2 — — Read-only copy of the Status Word 2 . • See parameter 0303 . www .DaikinApplied .com OM 1191 • MD5 VFD...
  • Page 18 Reserved USER LOAD CURVE MOTOR STALL START DELAY AUTORESET Reserved AUTOCHANGE Reserved PFA I LOCK Reserved Reserved Reserved 0309 ALARM WORD 2 — — • See parameter 0308 .Group 03: Actual Signals OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 19: Group 04: Fault History

    PREVIOUS FAULT 1 As par . 0401 Fault code of the second last fault . Read-only . 0413 PREVIOUS FAULT 2 As par . 0401 Fault code of the third last fault . Read-on www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 20: Group 10: Start/Stop/Dir

    1 = FORWARD – Rotation is fixed in the forward direction. 2 = REVERSE – Rotation is fixed in the reverse direction. 3 = REQUEST – Rotation direction can be changed on command . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 21: Group 11: Reference Select

    -1 = DI1(INV) – Assigns control to EXT1 or EXT2 based on the state of DI1 (DI1 activated = EXT1; DI1 de-activated = EXT2) . -2…-6 = DI2(INV)…DI6(INV) – Assigns control to EXT1 or EXT2 based on the state of the selected digital input . See DI1(INV) above . www .DaikinApplied .com OM 1191 • MD5 VFD...
  • Page 22 • A Stop command resets the reference to zero (the R stands for “reset”) . • Parameter 2205 ACCELER TIME 2 controls the reference signal’s rate of change . Does not apply to Daikin MicroTech III applications . 6 = DI3U,4D – Same as above (DI3U,4D(R)), except: •...
  • Page 23 • The minimum analog input signal (as a percent of the full signal in volts or amperes) corresponds to REF1 MIN in Hz/rpm . • Parameter 1301 MINIMUM AI1 or 1304 MINIMUM AI2 sets the minimum analog input signal . Does not apply to Daikin MicroTech III applications .

  • Page 24: Group 12: Constant Speeds

    -1 = DI1(INV) – Selects Constant Speed 1 with digital input DI1 . • Inverse operation: Digital input de-activated = Constant Speed 1 activated . -2…- 6 = DI2(INV)…DI6(INV) – Selects Constant Speed 1 with digital input . See above . OM 1191 • MD5 VFD www .DaikinApplied .com...
  • Page 25 1 is active, selects Constant speed 3 when only Timed function 2 is active and selects Constant speed 4 when both Timed functions 1 and 2 are active . TIMED FUNCTION 1 TIMED FUNCTION 2 Function Constant speed 1 (1202) Constant speed 2 (1203) Constant speed 3 (1204) Constant speed 4 (1205) www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 26: Group 16: System Controls

    • If 1602 PARAMETER LOCK = 1 (OPEN), parameters altered from the control panel are stored immediately to permanent memory . 0 = DONE – Value changes automatically when all parameters are saved . 1 = SAVE… – Saves altered parameters to permanent memory . OM 1191 • MD5 VFD www .DaikinApplied .com...
  • Page 27 0 = DEFAULT – Complete long and short parameter lists are shown . 1 = FLASHDROP – FlashDrop parameter list is shown . Does not include short parameter list . Parameters that are hidden by the FlashDrop device are not visible . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 28: Group 20: Limits

    • De-activating the digital input selects MAX TORQUE 2 value . -2…-6 = DI2(INV)…DI6(INV) – Defines an inverted digital input DI2…DI6 as the control for selecting the maximum limit used. • See DI1(INV) above OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 29: Group 21: Start/Stop

    Scalar control mode: 1…5, 8 Selects the motor start method . The valid options depend on the value of parameter 9904 MOTOR CTRL MODE . Does not apply to Daikin MicroTech III applications . 1 = AUTO – Selects the automatic start mode .

  • Page 30: Group 22: Accel/Decel

    Sets the deceleration time for maximum frequency to zero for ramp pair 1 . • Actual deceleration time also depends on 2204 RAMP SHAPE 1 . • See 2008 MAXIMUM FREQ, page 28 . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 31: Group 26: Motor Control

    Selects the form for the U/f (voltage to frequency) ratio below field weakening point. 1 = LINEAR – Preferred for constant torque applications . 2 = SQUARED – Preferred for centrifugal pump and fan applications . (SQUARED is more silent for most operating frequencies .) www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 32: Group 30: Fault Functions

    • De-activating the digital input indicates a fault . The drive displays a fault (14, EXT FAULT 1) and the drive coasts to stop . -2…-6 = DI2(INV)…DI6(INV) – Defines an inverted digital input DI2…DI6 as the external fault input. • See DI1(INV) above . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 33: Group 31: Automatic Reset

    0 = DISABLE – Disables automatic reset . 1 = ENABLE – Enables automatic reset . • Automatically resets the fault (OVERCURRENT) after the delay set by 3103 DELAY TIME, and the drive resumes normal operation . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 34: Group 34: Panel Display

    117 = %ref 119 = %dev 121 = % SP 123 = Iout 125 = Fout 127 = Vdc 118 = %act 120 = %LD 122 = %FBK 124 = Vout 126 = Tout OM 1191 • MD5 VFD www .DaikinApplied .com...
  • Page 35 OUTPUT3 MIN — 0 .0 mA selection Depends on 3421 OUTPUT3 MAX — 20 .0 mA selection Sets the maximum value displayed for the third display parameter . See parameter 3407 . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 36: Group 36: Timed Functions

    • The time can be changed in steps of 2 seconds . • If parameter value is 07:00:00, the timer is activated at 7 a .m . • The figure shows multiple timers on different weekdays. OM 1191 • MD5 VFD www .DaikinApplied .com...
  • Page 37 Defines the booster ON time. Time is started when booster sel signal is released. If parameter value is 01:30:00, booster is active for 1 hour and 30 minutes after activation DI is released . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 38: Group 53: Efb Protocol

    Group 53: EFB Protocol This group defines set-up variables used for an embedded fieldbus (EFB) communication protocol. The standard EFB protocol in the MD5 is Modbus . See chapter Embedded Fieldbus on page 45 . Table 20: Group 53: EFB Protocol...

  • Page 39: Group 64: Load Analyzer

    0 .1 A — Current at the moment of the peak value (amperes) . 6410 UDC AT PEAK 0…65535 V — DC voltage at the moment of the peak value (volts) . www .DaikinApplied .com OM 1191 • MD5 VFD...
  • Page 40 0 .1% — Amplitude logger 2 (signal selection with parameter 6404) 10…20% distribution . 6426 AL2RANGE20TO30 0 .0…100 .0% 0 .1% — Amplitude logger 2 (signal selection with parameter 6404) 20…30% distribution . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 41: Group 81: Pfa Control

    • An interlock is inactive when its command signal is present . • The MD5 will not start if a start command occurs when the speed regulated motor’s interlock is active – the control panel displays an alarm . Wire each Interlock circuit as follows: •...
  • Page 42 DI6: Free DI6: Third PFA Relay DI1…DI2: Free Not allowed DI1…DI2: Free DI3: First PFA Relay DI4: Second PFA Relay DI5: Third PFA Relay DI6: Fourth PFA Relay 5…6 Not allowed Not allowed OM 1191 • MD5 VFD www .DaikinApplied .com...
  • Page 43 • Requires 8118 AUTOCHNG INTERV = 0 .0 . No . PFA relays Autochange disabled Autochange enabled DI1…DI5: Free Not allowed DI6: Speed Reg Motor Not allowed DI1…DI5: Free DI6: First PFA Relay 2…6 Not allowed Not allowed www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 44: Group 98: Options

    4 = EXT FBA – The drive communicates via a fieldbus adapter module in option slot 2 of the drive. 5 = BACNET – Enables fieldbus communication with the drive using BACnet protocol via the RS485 serial link (X1-communications terminal). OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 45: Embedded Fieldbus

    Mbedded ieldbUs Overview The MD5 can be set up to accept control from an external Two basic serial communications configurations are available: system using standard serial communication protocols . When • Embedded fieldbus (EFB) – Using the RS485 interface using serial communication, the ACH550 can either: at terminals X1:28…32 on the control board, a control...

  • Page 46: Mechanical And Electrical Installation-Efb

    . See following wiring diagram . The disconnected from the power source . MD5 termination resistor (J-2) are active terminators . This active circuit includes bins (“Pull-up” and “Pull-down”) • Use Belden 9842 or equivalent . Belden 9842 is a dual resistors .
  • Page 47 Mbedded ieldbUs Figure 8: Alternate Wiring Diagram www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 48: Communication Setup - Efb

    3 = 8O1 – 8 data bits, Odd parity, one stop bit . NOTE: For the BACnet protocol, the MD5 will function as a Master with MAC IDs in the range of 1 - 127 . With MAC ID settings of 128 - 254, the drive is in Slave only behavior .
  • Page 49 Modbus BACnet EFB CTRL PROFILE Selects the communication profile used by the EFB protocol . 0 = Daikin DRV LIM – Operation of Control/Status Words conform to Daikin Drives Profile (limited), as used in When this protocol is N/A . When this protocol is selected, the default value for this parameter is: 0 . Changing 5305 ACH400/550 .

  • Page 50: Activate Drive Control Functions - Efb

    BV11 1. For Modbus, the protocol reference can depend on the profile used, hence two columns in these tables. One column refers to the Daikin Drives profile, selected when parameter 5305 = 0 (Daikin DRV LIM) or 5305 = 2 (Daikin DRV FULL). The other column refers to the DCU profile selected when parameter 5305 = 1 (DCU PROFILE). See Daikin control profiles technical data section .

  • Page 51: Miscellaneous Drive Control

    2014 7 (COMM) selection is the fieldbus. Source for ramp 2201 ACC/DEC 1/2 SEL 7 (COMM) pair selection is 40031 bit 10 the fieldbus. 1 . Use Memorize Point command . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 52: Relay Output Control

    . Relay 4…6 0123 RO 4-6 STATUS 40123 0123 BI7… BI9 79… 81 BI3… BI5 status . 1 . More than 3 relays requires the addition of a relay extension module . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 53: Analog Output Control

    1 (FAULT) 3018 COMM FAULT FUNC Set for appropriate drive response . 2 (CONST SP7) 3 (LAST SPEED) 3019 COMM FAULT TIME Set time delay before acting on a communication loss . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 54: Feedback From The Drive - Efb

    FB STATUS WORD – bit 2 (REV) 40301 bit 2 Mailbox Read/Write The MD5 provides a “Mailbox” function to access parameters that have not been pre-defined by the protocol. Using mailbox, any drive parameter can be identified and read. Mailbox can also be used to adjust parameter settings by writing a value to any parameter identified.

  • Page 55: Actual Value Scaling

    • N2 analog input objects in the N2 protocol technical data section . • Scaling drive feedback values in the FLN protocol technical data section . Scaling does not apply for the BACnet protocol . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 56: Diagnostics - Efb

    Fault Queue for Drive Diagnostics For general MD5 diagnostics information, see Diagnostics on page 74 . The three most recent MD5 faults are reported to the fieldbus as defined below. For specific MD5 fault codes, Table 55: Fault Listing on page 75 .
  • Page 57 B on another): The problems described above are the most common • The value of 5306 EFB OK MESSAGES does not problems encountered with MD5 serial communication . advance . Intermittent problems might also be caused by: •...

  • Page 58: Troubleshooting

    1 . See Corrective Action 1 . Parameter Number 5308 2 . Too many devices on wire 2 . Limit to 31 unit loads on 1 segment (MD5 = 3 . Noise on EIA-485 wire 1 unit load) 3 . See Corrective Action 7 . Parameter Number...

  • Page 59: Bacnet Protocol Technical Data

    1412 value = COMM (also requires OREL-01 option) . NOTE: For Present Value Access Types, R = Read-only, W = Writeable, C = Commandable . Commandable values support priority arrays & relinquish defaults . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 60: Binary Value Object Instance Summary

    This object indicates the value of Analog Input 2 . The corresponding drive parameter is 0121 . Percen NOTE: For Present Value Access Types, R = Read-only, W = Writeable, C = Commandable . Commandable values support priority arrays & relinquish defaults . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 61: Analog Output Object Instance Summary

    This object sets the Ramp1 deceleration time . The corresponding drive parameter is 2203 . Seconds This object defines the parameter to be read or written to by the mailbox function. See BV15 and AV25 MBOX PARAM None BV16 . Table 42 continued: Analog Value Objects www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 62: Bacnet Quick-Start Sequence

    & relinquish defaults . BACnet Quick-Start Sequence The following steps summarize the process for enabling and configuring BACnet on the MD5: 1 . Enable BACnet protocol: Set drive parameter 9802, 6 . Confirm proper BACnet communication.

  • Page 63: Bacnet Device Address Rules

    BACnet network, all IP and MSTP subnetworks . • MSTP MAC Address is configurable via parameter 5302 • Device Object IDs are 22 bits, configurable via in MD5 . 1 . .127 = range of supported Master addresses parameters 5311 and 5317 in MD5 . for MD5 •...

  • Page 64: Protocol Implementation Conformance Statement (Pics)

    Protocol Implementation Conformance Statement (PICS) PICS Summary BACnet Standard Device Profile. This version of MD5 MAC ID / Device Object Instance . The MD5 supports BACnet fully conforms to the ‘Application-Specific Controller’ separate MAC ID and Device Object Instance parameters: standard device profile (B-ASC).

  • Page 65: Statement

    Firmware Revision: 312B BACnet Protocol Revision: The MD5 is a high-performance adjustable frequency drive specifically designed for commercial automation applications . This product supports native BACnet, connecting directly to the MS/TP LAN . All standard MS/TP baud rates are Product Description: supported, as well as master mode functionality .

  • Page 66: Bacnet Object Definitions

    Units     Priority Array     Relinquish Default   Polarity    Active Text    Inactive Text * For commandable values only . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 67: Fieldbus Adapter

    Overview Control interface The MD5 can be set up to accept control from an external system using standard serial communication protocols . When In general, the basic control interface between the fieldbus using serial communication, the MD5 can either: system and the drive consists of: •...

  • Page 68: Control Word

    . The use of a second reference (REF2) is supported only when a protocol is configured for the Daikin Drives profile. Reference scaling is fieldbus type specific. See the user’s manual provided with the FBA module and/or the following sections as appropriate: •...

  • Page 69: Communication Setup - Fba

    • Drive parameter value set as defined below. Reference scaling in the following sections, as appropriate: • Fieldbus controller supplied reference word(s) in the • Daikin drives profile technical data appropriate location. (The location is defined by the • Generic profile technical data Protocol Reference, which is protocol dependent .)

  • Page 70: System Control

    Analog Output 2 controlled by writing to parameter 0136 . 0136 COMM VALUE 2 — AO2 CONTENT MIN… 1508…1511 Used for scaling — MAXIMUM AO2 Set appropriate values . 1512 FILTER AO2 Filter time constant for AO2 . — OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 71: Pid Control Setpoint Source

    . For a complete listing, see all parameters listed in Complete parameter descriptions . • Daikin drives profile technical data • Generic profile technical data Table 52: Sample of Feedback Data...

  • Page 72: Diagnostics - Fba

    Diagnostics – FBA Fault Handling Serial Communication Diagnostics The MD5 provides fault information as follows: Besides the drive fault codes, the FBA module has diagnostic tools . Refer to the user’s manual supplied with the FBA • The control panel display shows a fault code and text .

  • Page 73: Generic Profile Technical Data

    2 . Assuming, for the sake of this example, that the Actual Value uses parameter 9907 MOT NOM FREQ as the 100% reference, and that 9907 = 500 Hz . Actual Value Mapping See the user’s manual supplied with the FBA module . www .DaikinApplied .com OM 1191 • MD5 VFD...

  • Page 74: Diagnostics

    • Report the situation as an alarm . a few seconds . The message returns periodically as long as • Report the situation as a fault . the alarm condition exists . OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 75: Correcting Faults

    Motor or process stall . Motor is operating in the stall region . Check for and correct: MOTOR STALL • Excessive load . • Insufficient motor power. EXTERNAL FLT 1 Digital input defined to report first external fault is active. See parameter 3003 EXTERNAL FAULT 1. www .DaikinApplied .com OM 1191 • MD5 VFD...
  • Page 76 . Contact your local Daikin sales representative . OPEX PWR Internal fault . Low voltage condition detected on OINT power supply . Contact your local Daikin sales representative . CURR MEAS Internal fault . Current measurement is out of range . Contact your local Daikin sales representative .
  • Page 77 • 2008* MAXIMUM FREQ / 9907 MOTOR NOM FREQ is outside proper range (> 50) *These are factory set and tested . Contact your local Daikin sales representative if there is a problem . Parameter values are inconsistent . Check for the following:...

  • Page 78: Fault Resetting

    Fault Resetting History For reference, the last three fault codes are stored into The MD5 can be configured to automatically reset certain faults. parameters 0401, 0412, 0413 . For the most recent fault Refer to parameter Group 31: Automatic Reset on page 33 .
  • Page 79 3703 USER LOAD C TIME. 2027 USER LOAD CURVE Contact your local Daikin sales representative if there is a problem . Shown during the Start delay . See parameter 2113 START DELAY . 2028 START DELAY Contact your local Daikin sales representative if there is a problem .

  • Page 80: Maintenance

    . fan replacement is recommended once these symptoms start appearing . Replacement fans are available from Daikin . Do not Clean the heatsink as follows (when necessary): use other than Daikin specified spare parts.

  • Page 81: Frame Sizes R5 And R6

    . Contact Daikin if capacitor failure is suspected . Replacements for frame size R5 and R6 are available from Daikin . Do not use other than Daikin specified spare parts.

  • Page 82: Technical Data

    Ratings Ratings, 380…480 volt drives By type code, the table below provides ratings for the MD5 adjustable speed AC drive, including: Abbreviated column headers are described in Symbols on • IEC ratings page 83 . • NEMA ratings (shaded columns) •...

  • Page 83: Ratings, 500

    2000 m (6600 ft) above sea level, typical motor power in normal use . The kilowatt power please contact your local Daikin distributor or office for further ratings apply to most IEC, 4-pole motors . The Horsepower information .

  • Page 84: Control Connections

    ON to drive inputs . Driving two or more inputs, divides the leakage current, reducing or eliminating the problem . An alternative is to add a small capacitive load – see figure. OM 1191 • MD5 VFD www .DaikinApplied .com...

  • Page 85: Drive's Control Connection Terminals

    Application Macros on page NOTE: Terminals 3, 6, and 9 are at the same potential . For safety reasons the fault relay signals a “fault” when the MD5 is powered down . Analog Cables Recommendations for analog signal runs: • Use double shielded, twisted pair cable .

  • Page 86: Serial Communications

    Digital input common. To activate a digital input, there must be ≥+10 V (or ≤-10 V) between that input and DCOM. The 24 V may be DCOM provided by the MD5 (X1-10) or by an external 12…24 V source of either polarity . Digital input 1, programmable . Default = start/stop .

  • Page 87: Ambient Conditions

    • No conductive dust allowed . • No conductive dust allowed . • Chemical gases: Class 1C2 • The MD5 should be installed in clean air according to enclosure classification. • Solid particles: Class 1S2 Contamination Levels • Cooling air must be clean, free from corrosive materials and free from electrically conductive dust .

  • Page 88: Appendix

    PPendix PPendix Daikin Applications Parameter Settings: The MD5 VFD has been made to Daikin specifications. All WARNING factory installed MD5 VFDs with MicroTech III controls are also Unintended Equipment Operation factory configured and started. Table 63 lists the parameters that have been specifically configured for Daikin or may need •...
  • Page 89 DIRECT 3421 OUTPUT3 MAX 44ma 1800 rpm 1800 rpm 1800 rpm 1800 rpm 4201 GAIN The Daikin software version [will grow over time] 4202 INTEGRATION TIME 5302 EFB STATION ID SAF=1, R/EAF=2 5303 EFB BAUD RATE 5304 EFP PARITY 8 NONE 2...

  • Page 90: Microtech Iii Control Parameters

    PPendix MicroTech III Control Parameters: Possible Faults The MD5 will be factory configured to work with MicroTech • Loose wires. Difficult to discover, check mechanical III Controls and factory tested . The downloaded parameters tightness of all terminal connection points . Other faults have a high probability of being fully correct if the following specifically described below may be observed.
  • Page 91 PPendix Figure 14: MD5 Maverick II — Supply Fan, Exhaust Fan and Energy Recovery Wheel No Energy Recovery SAF VFD CABLE Terminal Strip MicroTech III WHITE 213B-13 TB1F-41G Controller 212B-13 TB1F-40 BLACK 211B-13 TB1F-39 REMOTE KEYPAD EAF VFD CABLE 29 A+...
  • Page 92 PPendix MD5 Self-contained SAF Figure 15: MD5 RoofPak and Self-Contained Air Conditioner Supply Air Fan A+1/2.12 WHITE B-1/2.13 BLACK REMOTE KEYPAD CONNECTION 29 A+ 30 B- VFD10 SHIELD OF ALL SIGNAL CABLES SPS1 DUCT TB1(-) STATIC PRESSURE AGND TB1(+) SPS-X...
  • Page 93 PPendix Figure 16: MD5 RoofPak Condenser Fan Speed Control A+1/2.12 WHITE B-1/2.13 BLACK REMOTE KEYPAD CONNECTION 29 A+ 30 B- VFD11 SHIELD OF ALL SIGNAL CABLES WHITE PRESSURE AGND TRANSDUCER BLACK PT11 AGND AGND YELLOW GND 11 DCOM 12 DI1 13...
  • Page 94 PPendix MD5 RoofPak Energy Recovery Wheel, Frost Control Option Figure 17: MD5 RoofPak — Energy Recovery Wheel, Frost Control Option A+1/2.12 WHITE B-1/2.13 BLACK REMOTE KEYPAD CONNECTION 29 A+ 30 B- VFD10 AGND AGND AGND 24V 10 YELLOW GND 11 DCOM 12 Jumper to establish digital ground reference to internal 24VDC supply.
  • Page 96 Daikin Applied Training and Development Now that you have made an investment in modern, efficient Daikin equipment, its care should be a high priority. For training information on all Daikin HVAC products, please visit us at www.DaikinApplied.com and click on Training, or call 540-248-9646 and ask for the Training Department.

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