Related Manuals for Danfoss VLT Inverter Scroll CDS 801
Summary of Contents for Danfoss VLT Inverter Scroll CDS 801
- Page 1 MAKING MODERN LIVING POSSIBLE Operating Instructions ® Inverter Scroll CDS 801...
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Page 3: Table Of Contents
3.6.5 4-way Reversing Valve Connection 3.6.6 Condenser Fan Motor Control Connection (EXT_FAN) 3.6.7 EEV Controller (HP Mode) Connection (EEV_2) 3.6.8 Serial Communication Cable Connection 3.6.9 Connector Specification 3.6.10 Allocation of Connector Pins ® MG10V402 - VLT is a registered Danfoss trademark... - Page 4 6.3.3.2 Open Loop/ External Speed Control 6.3.4 Condensing Pressure Control 6.3.4.1 AC Mode 6.3.4.2 HP Mode 6.3.4.3 Defrost Mode 6.3.5 Auxiliary Functions 6.3.5.1 Start-Up Sequence 6.3.5.2 Restart Timer 6.3.5.3 Compressor Safety Envelope 6.3.5.4 Oil Return ® MG10V402 - VLT is a registered Danfoss trademark...
- Page 5 6.4 Thermo Controller Register Overview (Node 162) 7 Fault Conditions, Messages and Causes 8 Troubleshooting 9 Specifications 10 Special Operating Conditions 11 Maintenance 11.1 Replacement of Internal Cooling Fan 11.2 Cleaning 12 Service and Spare Parts Index ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 6: General
1.1.1 Disclaimer 1.3 Approvals Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss The drive has been designed/approved in accordance with reserves the right to alter its products without notice. This... -
Page 7: General Warning
062 means week 6 in 2012. Do not remove the identifi- WARNING cation label from the drive (loss of warranty). Installation in high altitudes: PERFORMER At altitudes above 6000 ft (2000 m), contact Danfoss regarding SELV. CDS801 Variable Speed Drive P/N: 176L7002... -
Page 8: Table Of Abbreviations
Printed circuit board AWG American wire gauge Electronic expansion valve Remote terminal unit OEM Original equipment manufacturer Air-conditioning Heat pump Rated load amperage Application oriented controller MOC Motor oriented controller Table 1.2 Abbreviations ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 9: Mechanical Installation
Inverter Scroll CDS 801 Operating Instructions 2 Mechanical Installation 2.1 Dimensions and Weight 255 mm/10 in 98 mm/ 3.8 in 394 mm/15.5 in 216 mm/8.5 in 196 mm/7.7 in 374 mm/ 14.7 in Illustration 2.1 Dimensions ® MG10V402 - VLT is a registered Danfoss trademark... - Page 10 98 mm/ 3.8 in 255 mm/10 in 236 mm/9.3 in 180 mm/ 7.1 in 180 mm/ 7.1 in Illustration 2.2 Dimensions Mounting holes: ¼ inch, Ø 6 mm Weight: 10.3 lbs/5.5 kg ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 11: Installation Orientation And Clearances
For outdoor units, do not install the drive horizontally with the PCB in the top or bottom. Water condensing on the PCB cannot be properly drained. Illustration 2.3 Horizontal Orientation Illustration 2.4 Vertical Orientation ® MG10V402 - VLT is a registered Danfoss trademark... - Page 12 Mechanical Installation Inverter Scroll CDS 801 Operating Instructions To avoid insufficient cooling, do not install the drive with the cooling fan in the top, see Illustration 2.5. Illustration 2.5 Wrong Drive Orientation ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 13: Structural Mounting
PCB. Screws touching the electrical parts on the PCB can cause personal injury and product damage. Illustration 2.6 Vertical Installation in Mechanical Structure ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 14: Air Circulation/Cooling
(rain) or condensing water slung around by the condenser fan. In outdoor units, it is recommendable to install the drive in a rain proof compartment. ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 15: Electrical Installation
AWG 10, voltage rating minimum 300 V, Short circuit protection minimum temp. rating 105 °C/221°F Danfoss requires using the fuses mentioned in Table 3.4 to protect service personnel or other equipment in case of an Min. circuit ampacity 3 t unit... -
Page 16: Emc Correct Installation
Ensure good electrical contact between the de- coupling plate and the metal chassis of the variable speed drive. • Where possible, avoid using unshielded/ unarmored motor or control cables inside cabinets housing the drive. ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 17: Electrical Connections
Furthermore, the motor cable should be kept as short as possible. Do not route cables across the PCB (see Illustration 3.1). Illustration 3.2 Cable Separation Illustration 3.1 Wrong Routing of Motor and Supply Cables ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 18: Power Supply Connection (Mains)
3.6.3 Motor (Compressor) Connection EU models: The terminal box provides punch outs on the right side for Danfoss offers different compressor models according to 25 mm glands and in the bottom for 28 mm glands. the desired level of EMC compliance for radiated Connect wires for T1, T2, T3 and ground (PE) inside the emissions. - Page 19 Illustration 3.8. The motor phase wires (T1, T2, T3) must be wound twice around the ferrite, while the PE wire is directly connected to the chassis, see Illustration 3.8. ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 20: Sensor Connections
250 V AC, 4 A PBC, see Illustration 3.12. 24 V DC, 4 A See 3.6.10 Allocation of Connector Pins. Illustration 3.12 EEV_2 Controller Connection Illustration 3.10 4-way Reversing Valve Connection ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 21: Serial Communication Cable Connection
The two 3-pole connectors are marked on the circuit board as “Master” which connects to the OEM Controller, and “EEV_1” which connects to the indoor EEV Controller (separate internal Danfoss bus). The compression clamp is suitable to two sets of cable. Make sure to establish a good connection between the shield and the compression clamp and the chassis. -
Page 22: Connector Specification
39-00-0213 Alternative manufacturer see manuf. reference lists Table 3.5 Connector Specification Illustration 3.16 4-pole Connector Illustration 3.14 2-pole Connector Illustration 3.17 Bus Connector Illustration 3.15 3-pole Connector Illustration 3.18 Crimping Contact ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 23: Allocation Of Connector Pins
2 Signal 2 COM 3 - (RS485) 3 PWM 3 +5V 3 +5V 3 NO 4 +24V 4 not used 4 not used 4 not used Illustration 3.19 Allocation of Connector Pins ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 24: Overview Wiring Diagram
3.6.11 Overview Wiring Diagram The following 3 wiring diagrams show typical system configurations for an AC system (see Illustration 3.20), a combined AC/HP system (see Illustration 3.21) and a ground source heat pump system (see Illustration 3.22), with all Danfoss components. - Page 25 PT 1000(S. amb.) Aux. temperature S_AUX sensor PT 1000 Compr. dischange temp. sensor PT 1000(Sd) Compressor suction pressure sensor (Po) Compressor discharge pressure sensor (Pc) RLY_1 Illustration 3.21 Combined AC/HP System ® MG10V402 - VLT is a registered Danfoss trademark...
- Page 26 S_AUX sensor PT 1000 Compr. discharge temp. sensor PT 1000(Sd) Compressor suction pressure sensor (Po) Compressor discharge pressure sensor (Pc) RLY_1 Illustration 3.22 Ground Source Heat Pump System with one EEV ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 27: Serial Communication (Modbus Rtu)
AC operation Modbus node #165 Drive PCB Outdoor EEV Controller for Heatpump operation Modbus node #164 Indoor section Outdoor section Illustration 4.1 Modbus Communication Set-up, for AC only, and Combined AC/HP Systems ® MG10V402 - VLT is a registered Danfoss trademark... - Page 28 Motor control Application control Microprocessor Microprocessor Modbus node #163 Modbus node #162 Internal bus Controller Modbus node #165 Drive PCB Illustration 4.2 Modbus Communication Set-up for Ground Source Heat Pump Systems ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 29: Commissioning
Setting this register to logic “1” resets the drive to the (Modbus registers). This manual is limited to the drive Danfoss defaults (factory defaults as listed in this manual parameters. For the application controller and the EEV and Modbus register map files) -
Page 30: Drive Parameters (Modbus Registers, Node 163)
This register allows setting the number of stop bits of the Modbus protocol. Register 40501-40550, OEM Data registers Danfoss has established 50 OEM registers that the OEM Value customer can use freely to store product information. All 1 stop bit (default) registers are of type unsigned 16. -
Page 31: Condenser Fan Speed Reference Output
Selects the source of ambient temperature used by software control algorithms (Crankcase Heating and The following signals are simultaneously available: Outdoor Fan Control). • Analog output 0-10 V • Frequency duty cycle output 24 V PWM, 0-10 kHz ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 32: Pressure Sensor Scaling
5.6 Pressure sensor scaling • Product identification • Operation status (alarms and warnings) When using other pressure sensors than Danfoss AKS • sensors (specified in the sensor selection guide), the Operation data pressure configuration registers must be changed to match •... -
Page 33: Embedded Application Controller "Thermo Control
6.2 Applications 6.2.1 Generic AC Outdoor Indoor Modbus control Samb +24V EIM 316 Drive S2 AC Samb Modbus Galvanic Isolation Air flow Air flow S2 AC Illustration 6.1 Generic AC ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 34: Generic Ac/Hp (Reversible)
6.2.2 Generic AC/HP (Reversible) Indoor Modbus Outdoor control S2 HP EIM 316 Samb Modbus +24V EIM 316 Drive Modbus Samb Galvanic isolation Air flow Air flow S2 AC Illustration 6.2 Generic AC/HP (Reversible) ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 35: Ground Source Heat Pump (Reversible)
In cooling mode, the Indoor EEV is active and receives the • suction pressure signal over the Modbus from the Thermo AC (cooling) Control controller. The outdoor EEV is inactive. • HP (heating) • Defrost ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 36: Defrost
6.3.2.4 Defrost The purpose of Defrost mode is to allow the OEM controller to perform an efficient defrost routine. In Defrost mode, the EEVs and 4-way valve work identically to AC mode. ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 37: Single Loop Room Temperature Control
0% Speed request = 0 Hz, and start will not be allowed until 60 s later. (control restart timer). 1% Speed request = 15 Hz 100% Speed request = 70 Hz, see Illustration 6.6 Can be overruled by derating functions (explained in 6.3.5.5 Derating). ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 38: Condensing Pressure Control
Pc/P0 = constant across the compressor, see Illustration 6.7. This ratio is the theoretically optimal pressure ratio for the Inverter Scroll CDS 801 compressor. To run Optimal COP mode: Set THERMO_IN_FAN_MODE = 0 ® MG10V402 - VLT is a registered Danfoss trademark... - Page 39 Bypass fan speed control In Bypass speed control, the fan speed is set externally from the OEM controller through the Modbus. In the bypass mode the external speed is bypassing the fan ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 40: Hp Mode
To run Delta T mode: Set THERMO_IN_FAN_MODE = 1 The temperature difference Delta T is set through the register THERMO_SETUP_DELTA_TEMP. Tamb - Delta T FanMotor Evaporator Σ P 2 T Illustration 6.12 Delta T Control ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 41: Defrost Mode
In external speed control, the fan speed is set externally from the OEM controller through the Modbus. The speed can be overruled by the fan protection functions like min and max condensing pressure derating, see Illustration 6.15. ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 42: Restart Timer
900-4200 RPM, see 6.3.5.5 Derating Illustration 6.18. The purpose of the derating functions is to keep the compressor and drive within the specified operating conditions, while still providing cooling/heating. ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 43: Discharge Temperature Cut Out
Variable speed systems sometimes are characterized by operating limits. showing mechanical resonances at critical compressor speeds. Therefore Danfoss has established parameters to Drive Power Derating set 5 bypass speeds with individual bandwidths. If a The compressor speed is limited to keep the drive power mechanical resonance occurs, i.e. -
Page 44: Thermo Controller Register Overview (Node 162)
Four way valve control to set the system in AC or HP mode 40306 THERMO_OUT_START_EEV_INDOOR Command register to indoor EEV 0 = stop 1 = start 40307 THERMO_OUT_START_EEV_OUTDOOR Command register to outdoor EEV 0 = stop 1 = start ® MG10V402 - VLT is a registered Danfoss trademark... - Page 45 Maximum duty cycle that will be output by the fan controller 41613 OUTDOOR_FAN_CONTROL_SIGNAL_FREQUENCY Set frequency of the condenser fan PWM signal 40479 THERMO_SETUP_CRANK_CASE_HEATING_ON_TEMP Ambient temperature where crankcase heating is activated Table 6.2 Thermo Controller Register Overview (Node 162) ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 46: Fault Conditions, Messages And Causes
2400 RPM for 60 s to operation when the supply voltage has recovered or distribute oil in the system and then returns to normal operating conditions have normalized. operation. ® MG10V402 - VLT is a registered Danfoss trademark... - Page 47 If the condenser pressure remains at a critical low level The drive has encountered an over temperature condition after the start-up sequence, the drive reports an alarm. and has stopped operation. An over temperature occurs ® MG10V402 - VLT is a registered Danfoss trademark...
- Page 48 In derating mode, the system cannot satisfy the requested compressor speed and the integrator of the PID-controller should be stopped until the system has returned to normal operation. ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 49: Troubleshooting
If suction pressure invalid, check wiring and function of suction pressure transmitter • If condenser pressure invalid, check wiring and function of condenser pressure transmitter • If internal fault, replace drive Table 8.1 Troubleshooting Guide ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 50: Specifications
The OEM must place an equivalent notice on the unit! Internal cooling fan High performance variable speed cooling fan, supply voltage 16 V. Nominal operating point 74 CFM (126 m3/h) @ 89Pa static pressure. ® MG10V402 - VLT is a registered Danfoss trademark... - Page 51 Total: 18 pulses. Table 9.2 Shock Specifications Immunity In accordance with frequency converter standard IEC 61800-3 Harmonics IEC 61000-3-12 and IEEE 519-1992 EN 55011 class A and EN 55014 (with ferrite) ® MG10V402 - VLT is a registered Danfoss trademark...
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Page 52: Special Operating Conditions
(a very unlikely coincidence). Derating under unusual refrigeration process conditions See Operating Instructions for the application controller. ® MG10V402 - VLT is a registered Danfoss trademark... -
Page 53: Maintenance
Maintenance Inverter Scroll CDS 801 Operating Instructions 11 Maintenance The Danfoss variable speed drive is maintenance-free over its entire lifetime, except the internal cooling fan, that eventually must be replaced depending on operation hours and conditions. When an over-temperature alarm... -
Page 54: Service And Spare Parts
Inverter Scroll CDS 801 Operating Instructions 12 Service and Spare Parts Service policy The Danfoss variable speed drive is not field repairable. In case of malfunction or damage (i.e. caused by lightning), the entire drive must be replaced with an original spare part. WARNING... -
Page 55: Index
Electrostatic Discharge................. 5 Enclosure....................49 Humidity....................49 Identification Label................5 Input Power.................... 48 Mains Cables..................16 Modicon....................25 Motor Cable.................... 15 Over-current Protected..............13 Pollution....................49 Power Factor..................48 Shielded Cable..................13 ® MG10V402 - VLT is a registered Danfoss trademark... - Page 56 130R0194 MG10V402 Rev. 2013-02-08 *MG10V402*...
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