Table of Contents
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Contents
Contents
3.2 Mechanical Installation
Operating Instructions VLT
®
MG34M302 - VLT
is a registered Danfoss trademark/Commercial Compressor
®
CDS302 and CDS303
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Summary of Contents for Danfoss VLT CDS302
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Page 1: Table Of Contents
3.3.9 Access to Control Terminals 3.3.10 Basic Wiring Example 3.3.11 Electrical Installation, Control Cables 3.3.12 Electrical Installation - EMC Protection 3.3.13 Safety Earth Connection 3.3.14 Basic Examples of Control Connections ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 2 6.7 Parameters: 6-** Analog In/Out 6.8 Parameters: 7-** Controllers 6.9 Parameters: 8-** Communications and Options 6.10 Parameters: 13-** Smart Logic Control 6.11 Parameters: 14-** Special Functions 6.12 Parameters: 15-** Drive Information ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 3 CDS302 and CDS303 6.13 Parameters: 16-** Data Read-outs 6.14 Parameters: 25-** Cascade Controller 6.15 Parameters: 28-** Compressor Functions 6.16 Parameter Lists 6.16.1 Conversion 7 Troubleshooting 7.1.1 Warnings/Alarm Messages 8 General Specifications Index ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 4: Introduction
1800 to 5400 RPM for CDS302 and 1500 to 6000 RPM for time of 12 s, with an interval between starts of 5 CDS303. minutes (300 s). The short cycle delay values are adjustable in parameter group 28-0* Short Cycle Protection. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 5: Sequence Of Operation
In case of a blocked rotor, the Compressor Drive trips with an alarm [A18] Start failed, if the speed fails to get above the minimum speed limit for the compressor within 2 s. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 6: Safety Instructions And General Warnings
15-43 Software Version. WARNING Table 2.1 Installation in high altitudes: CDS303 Operating Instructions Software version: 1.0x By altitudes above 2 km, please contact Danfoss regarding PELV. 2.1.2 Caution These Operating Instructions can be used for all CDS303 CAUTION ®... -
Page 7: General Warning
) and for the specific unit. Stop Category 0 (as defined in EN 60204-1 Danfoss has named this functionality Safe Stop. Before 2.1.7 Leakage Current integration and use of Safe Stop in an installation, perform a thorough risk analysis to determine whether the Safe... -
Page 8: Terminal 37 Safe Stop Function
• a subsystem related to all failures. IEC 61800-5-2: 2007 – safe torque off (STO) IEC 61508 Safety Integrity Level function • IEC 62061: 2005 SIL CL2 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 9 180/p degrees. p denotes the pole pair number. • This function is suitable for performing mechanical work on the system or affected area of a machine only. It does not provide electrical ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 10 For all applications with Safe Stop it is important that short circuit in the wiring to T37 can be excluded. Exclude the short circuit as described in EN ISO 13849-2 D4 by the use of protected wiring (shielded or segregated). ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 11 Safety relay Emergency stop Frequency converter Table 2.5 [Reset] key Safety relay Emergency stop Table 2.7 Illustration 2.5 SS1 Example Frequency converter [Reset] key Safety relay Emergency stop Table 2.6 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 12 After activation of Safe Stop (that is, after the response time), the frequency converter coasts (stops creating a rotational field in the motor). The response time is typically less than 10 ms. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 13: Safe Stop Commissioning Test
Relay W or [8] PTC 1 & Relay A/W): 2.1 Remove the 24 V DC voltage supply to terminal 37 by the interrupt device while the frequency converter drives the motor (that is ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 14: How To Install
Illustration 3.4 Frame Sizes C1 and C2, IP55/66/Type 1/Type 12 into account. 3.2 Mechanical Installation 61 68 39 42 3.2.1 Accessory Bags Find the following parts included in the CDS302 Accessory Illustration 3.5 Frame Size C3, IP20/Chassis ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 15: Mechanical Mounting
T6 (575 V) VSH088 (15 kW) VSH117 (18 kW) VSH170 (22 kW) IP 55 NEMA 12 VSH088 (15 kW) VSH117 (18 kW) VSH170 (22 kW) Table 3.2 Related VSH Numbers ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 16 12.0 12.0 12.0 d Ø 19.0 Ø 19.0 Ø 19.0 e Ø 9.0 Ø 9.0 Ø 9.0 f 9.0 Max. weight [kg] 23.0 27.0 23.5 Table 3.4 Mechanical Dimensions ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 17: Electrical Installation
Frequency converter sizes differ, but terminal numbers are always the same. Incoming power is always 91, 92, 93 labeled L1, L2, L3. Illustration 3.6 How to Connect to Mains and Earthing for B1 and B2 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 18 For correct cable dimensions see 8 General Specifications. Illustration 3.7 How to Connect to Mains and Earthing for B3 without RFI. Illustration 3.8 How to Connect to Mains and Earthing for B3 with RFI. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 19 Incoming power is always 91, 92, 93 labeled L1, L2, L3. Illustration 3.10 How to Connect to Mains and Earthing for C1 and C2. Illustration 3.9 How to Connect to Mains and Earthing for B4. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 20: Motor Compressor Connection
Fasten decoupling plate to the bottom of the frequency converter with screws and washers from the accessory bag. Attach motor compressor cable to terminals 96 (U), 97 (V), 98 (W). ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 21: Motor Compressors Cables
Illustration 3.17 C1, B1 and B2 Enclosures • The frequency converter makes through an Electronic current measurement anti-overload and 10 pole plug digital I/O 3 pole plug RS485 Bus ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 22: Basic Wiring Example
Illustration 3.22 Connect terminals 18, 27 and 37 to +24 V Illustration 3.19 (terminal 12/13) Default settings: To remove the cable from the terminal: 18 = start 27 = coast inverse ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 23 ® How to Install Operating Instructions VLT CDS302 and CDS303 Start Stop inverse Safe Stop Speed Start (18) Start (27) Illustration 3.23 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 24: Electrical Installation, Control Cables
24V (NPN) 32 (D IN) 0V (PNP) (P RS-485) 68 24V (NPN) (COM RS-485) 61 33 (D IN) 0V (PNP) (PNP) = Source (NPN) = Sink 37 (D IN) Illustration 3.24 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 25 If very long control cables are used, 50/60 Hz earth loops Illustration 3.26 may occur. Solve this problem by connecting one end of the screen to earth via a 100 nF capacitor (keeping leads short). ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 26: Electrical Installation - Emc Protection
The EMC performance of flexible conduits varies a the paragraph. lot and information from the manufacturer must be obtained. • Connect the screen/armour/conduit to earth at both ends for motor compressor cables as well as ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 27: Safety Earth Connection
3.5 mA. To ensure a good mechanical connection from the earth cable to the earth connection (terminal 95), the cable cross-section must be at least 10 or 2 rated earth wires terminated separately. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 28: Basic Examples Of Control Connections
Controls using an external controller with 4-20 mA signal. Change switch 53 from U to I. It is not necessary to change any parameters, as this is the default value. Illustration 3.29 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 29: High Voltage Test
NOTE The recommendations given do not provide UL branch circuit protection. Danfoss recommends using the fuses/circuit breakers listed below to protect service personnel and property in case of component break-down in the frequency converter. ®... -
Page 30: Ce Compliance
600V depending on the unit's voltage rating. With the Fuses or circuit breakers are mandatory to comply with IEC proper fusing, the frequency converter short circuit current 60364. Danfoss recommends using a selection of the rating (SCCR) is 100,000 Arms. following. - Page 31 600 V depending on the unit's voltage rating. With the Fuses or circuit breakers are mandatory to comply with proper fusing the drive Short Circuit Current Rating (SCCR) NEC 2009. Danfoss recommends using a selection of the is 100,000 Arms. following.
- Page 32 5014006-063 KLS-R-60 A6K-60-R 2028220-100 KLS-R-80 A6K-80-R 2028220-125 KLS-R-100 A6K-100-R 2028220-125 KLS-R-125 A6K-125-R 2028220-160 KLS-R-150 A6K-150-R 2028220-200 KLS-R-200 A6K-200-R 2028220-250 KLS-R-250 A6K-250-R Table 3.13 380-500 V, Frame Sizes B and C ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 33 Table 3.16 525-600 V, Frame Sizes B and C Type T indicator fuses of the same size and 170M fuses shown from Bussmann use the -/80 amperage may be substituted. visual indicator. –TN/80 Type T, -/110 or TN/110 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 34: Application Example - Pack Controller
2 compressors are controlled by the two built-in occurs, the Override Bandwidth overrides the Staging relays. Bandwidth to prevent immediate response to a short duration load change. An Override Bandwidth Timer can ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 35 • If a no load need occurs then destaging ensures that all fixed speed compressors are stopped individually followed by the variable speed compressor. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 36 ® How to Install Operating Instructions VLT CDS302 and CDS303 Illustration 3.32 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 37: Quick Set-Up
Now change parameters to testing purposes). Press [Auto On] for running in 1-00 Configuration Mode: Select [3] Process operation and with an external reference. 3-01 Reference/Feedback Unit: Select [71] Bar ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 38 Feedback [unit]. The pressure [bar] is going to be shown in the upper right corner of the display This is what the screen will look like, after configuring the frequency converter for Closed loop application. Illustration 4.4 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 39 Operating Instructions VLT CDS302 and CDS303 Other Compressor Features: To set up other dedicated compressor features press [Quick Menu] and go to Q4 or follow Illustration 4.5. Illustration 4.5 Flowchart ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 40: How To Program
Status line: Status messages displaying text. 5.1.3 Display Contrast Adjustment ▼ Press [Status] and [ ] for darker display ▲ Press [Status] and [ ] for brighter display ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 41: Indicator Lights
[Quick Menu] allows quick access to different Quick Menus select msb (most significant bit) such as: • Stop command from serial communication Q1 - My Personal Menu • Quick stop Q2 - Quick Set-up • DC brake ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 42: Quick Transfer Of Parameter Settings
Release the keys after 5 s. 5.2.6 Initialisation to Default Settings The frequency converter is now programmed Initialise the frequency converter to default settings in two according to default settings. ways: ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 43: Data Transfer From Lcp To Frequency Converter
15-** Drive Information • 16-** Data Readouts • 25-** Cascade Controller • 28-** Compressor Functions After selecting a parameter group, choose a parameter with the navigation keys. The middle section on the ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 44 ® How to Program Operating Instructions VLT CDS302 and CDS303 Illustration 5.6 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 45: Parameter Descriptions
1-40 Back EMF at 1000 RPM 4-18 Current Limit 28-42 DC Braking Time 1-44 d-axis Inductance (Ld) 200% I 4-19 Max Output Frequency 28-43 DC Brake Cut In Speed [RPM] Table 6.1 Compressor Related Parameters ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 46: Parameters: 0-** Operation And Display
Option: Function: Select the set-up to control the frequency converter functions. Factory setup Cannot be changed. It contains the Danfoss data set, and can be used as a data source when returning the other set-ups to a known state. Set-up 1... - Page 47 (i.e. while the motor is running). Example: Use Multi set-up to shift from Set-up 1 to Set- up 2 whilst the motor is running. Programme in Set-up 1 first, then ensure that Set-up 1 and ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 48 [1693 ] Warning Word 2 [1603] Status Word [1694] Ext. Status Word [1605] Main Actual Value [%] [2580] Cascade Status [1609] Custom Readout [2581 ] Compressor Status [1610] Power [kW] ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 49 Only possible to set different from 0 is when selecting a linear unit [10] 1/min in 0-30 Unit for User-defined [11] Readout. For Quadratic and [12] Pulse/s [20] ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 50 Password is set to [0] Full access, this parameter will be All to LCP Copies all parameters in all set-ups from ignored. the frequency converter memory to the LCP memory. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 51 No access Prevents unauthorised viewing and editing of Quick Menu parameters. NOTE If 0-61 Access to Main Menu w/o Password is set to [0] Full access, this parameter will be ignored. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 52: Parameters: 1-** Load And Motor
If the compressor selection is changed, then all dependent parameters reset to default and any user settings will be lost. Size [] Select the compressor/refrigerant combination dependent. for the system. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 53: Parameters: 3 -** Reference/Ramps
If a Ref 0 (3-02 Minimum No function Reference) is programmed, the preset ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 54 Additional adjustment of the S-ramp ratios or switching This product is then added to the actual initiators may be necessary. reference (X+X*Y/100) to give the resultant actual reference Same options as 3-15 Reference Resource 1. No function ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 55 Additional adjustment of the S-ramp ratios or switching a longer start or stop time. initiators may be necessary. Additional adjustment of the S-ramp ratios or switching initiators may be necessary. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 56 P 1-25 serial communication port. When jog Motor speed state is disabled then the normal ramping times are valid. P 4-11 RPM low limit Time P 3-81 Qramp Qstop Illustration 6.5 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 57: Parameters: 4-** Limits/Warnings
Analog input 54 produce a status signal on Analog input 54 inv terminal 27 or 29 and on relay output 01 or 02. [10] Analog input X30-11 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 58 It is strongly recommended to enable to avoid motor speeds to be avoided. damage. Option: Function: No alarm is displayed if a missing motor phase occurs. NOTE This parameter cannot be adjusted while the motor is running. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 59: Parameters: 5-** Digital In/Out
[24] Catch up [28] Slow down [29] Pulse input [32] 29, 33 Ramp bit 0 [34] Ramp bit 1 [35] Mains failure inverse [36] Day/night control [39] DigiPot Increase [55] ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 60 Comp. 1 Inv. interlock [139] Comp. 2 Inv. interlock [140] Comp. 3 Inv. interlock [141] Table 6.4 Functions dedicated to only one digital input are stated in the associated parameter. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 61 (motor potenti- function is not active in process closed loop. ometer). Activate this function by selecting either Freeze reference or Freeze output. When Speed ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 62 INCREASE signal to the Digital Potenti- digital input range and the additional ometer function described in parameter options [60], [61], [63] and [64]. group 3-9* Digital Potmeter. Counters are used in Smart Logic Control functions. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 63 Auto On mode. is at the torque limit, the signal is Logic Stand-by / no The frequency converter is ready for ‘0’. warning operation. No start or stop command is ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 64 The input will go low whenever the Smart low. Logic Action [36] Set dig. out. A low is [65] Comparator 5 See parameter group 13-1* Comparators. executed. If Comparator 4 is evaluated as TRUE, the ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 65 [15] Out of Speed Range principle: [16] Below Speed, low [17] Above Speed, high [18] Out of Feedb. Range [19] Below Feedback, low [20] Above Feedback, high [21] Thermal Warning ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 66 [0 - 110000 Enter the low frequency limit This parameter cannot be adjusted while the motor is corresponding to the low motor shaft running. speed (i.e. low reference value) in ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 67 [48] Bus ctrl., timeout A logical '0' indicates that the output is [51] MCO controlled low or inactive. [100] Output frequency [101] Reference [102] Feedback [103] Motor current ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 68 0.00 % [0.00 - 100.00 Set the output frequency transferred to the output terminal 29 when the terminal is configured as [45] Bus Controlled in 5-63 Terminal 29 Pulse Output Variable. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 69: Parameters: 6-** Analog In/Out
Overruled to stop Voltage and 6-13 Terminal 53 High Current. Jogging Overruled to jog speed Max. speed Overruled to max. speed Stop and Overruled to stop with subsequent trip trip ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 70 -1 (bar) [Value] Enter the analog input scaling value that to lim 0-20 4-16 Torque Limit Motor Mode corresponds to the minimum reference feedback value set in 3-02 Minimum Reference. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 71 When no signal on the analog output. 20 mA, the output setting of 6-62 Terminal operation X30/8 Max. Scale is: [52] I VLT x 100 0-20mA 38.4 x 100 = 175 % I Motor Norm ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 72 (100%), calculate the percentage value as follows: mA / desired maximum current x 100 % i . e . 10 mA : x 100 = 200 % ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 73: Parameters: 7-** Controllers
7-20 Process CL Feedback 1 Resource Option: Function: For process loop with current input, 54 switch has to be positionned on I (current). No function Analog input 53 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 74 1-00 Configuration Mode is set to [3] Process PID control. Process. 7-33 Process PID Proportional Gain Range: Function: 2.00N/A [0.00 - 10.00 Enter the PID proportional gain. The N/A] proportional gain multiplies the error ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 75 T is accomplished via the [72] formula: [73] [74] m WG T = A2/(log(P+1)-A1) – A3 [170] [171] lb/in2 where A1, A2 and A3 are refrigerant dependent constants. [172] in WG [173] ft WG ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 76 Cut-in level and the compressor must run. to Temperature Conversion). Another situation could be that the start situation is where the feedback is between Cut-out and Cut-in. In that case, no STOP is initiated. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 77 7-82 Cut-in Value Range: Function: 3 bar [Par.7-81 – Select the Cut-in Level where the stop 3000] signal is de-activated and the compressor starts. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 78: Parameters: 8-** Communications And Options
0-12 This Set-up Linked to. communication has stopped. The function selected in 8-04 Control Word Timeout Function is then carried out. A ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 79 Depended on the profile set in delays. 8-10 Control Profile. Alarm 68 Only The input goes high whenever Alarm 68 is active and goes low whenever no alarm 68 is actived Trip excl Alarm 68 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 80 OR via one 8-52 DC Brake Select of the digital inputs. Option: Function: Select control of the DC brake via the terminals (digital input) and/or via the fieldbus. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 81 (e.g. CRC fault), detected on the bus. 8-82 Slave Messages Rcvd Range: Function: [0 - 0 ] This parameter shows the number of valid telegrams addressed to the slave, sent by the frequency converter. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 82: Parameters: 13-** Smart Logic Control
[0] / action [0]. The ranges set in 4-50 Warning Current illustration shows an example with three event / actions: Low to 4-53 Warning Speed High. On reference The motor is running on reference. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 83 In range [26] Logic rule 0 Use the result of logic rule 0. On reference Torque limit [27] Logic rule 1 Use the result of logic rule 1. Current limit ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 84 RS Flipflop 4 [61] Logic rule 5 [99] RS Flipflop 5 [70] SL Time-out 3 Smart Logic Controller timer 3 is [100] RS Flipflop 6 timed out. [101] RS Flipflop 7 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 85 Motor speed [RPM] or [Hz] ranges set in 4-50 Warning Current Low to 4-53 Warning Speed High. Motor current [60] On reference The motor is running on reference. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 86 High when 3-13 Reference Site = [2] [92] Brake fault (IGBT) The brake IGBT is short circuited. Local or when 3-13 Reference Site is [0] [93] Mech. brake The mechanical brake is active. control ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 87 13-12 Comparator Value. Parameter Setting Notes > Inverse logic of option < [0]. 13-00 SL Controller Mode TRUE longer 13-01 Start Event TRUE than.. 13-02 Stop Event FALSE FALSE longer than.. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 88 [20] Alarm (trip) [93] ATEX ETR freq. alarm [21] Alarm (trip lock) [94] RS Flipflop 0 [95] RS Flipflop 1 [22] Comparator 0 [23] Comparator 1 [96] RS Flipflop 2 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 89 [39] Start command Timer 0, select index 1 to program Timer 1, and so on. [40] Drive stopped [41] Reset Trip [42] Auto-reset Trip [43] Ok key [44] Reset key ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 90 [71] SL Time-out 4 On reference [72] SL Time-out 5 Torque limit [73] SL Time-out 6 Current limit [74] SL Time-out 7 Out of current range [75] Start command given ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 91 Boolean 1 and 13-42 Logic Rule Boolean 2. [17] Mains out of range [13-**] signifies the boolean input of [18] Reversing parameter group 13-** Smart Logic Control. [19] Warning [20] Alarm (trip) [21] Alarm (trip lock) ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 92 Digital input x46/11 [85] Digital input x46/13 [90] ATEX ETR cur. warning Selectable if 1-90 Motor Thermal Protection is set to [20] ATEX ETR or [21] Advanced ETR. If the alarm ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 93 [17] Mains out of range [85] Digital input x46/13 [18] Reversing [90] ATEX ETR cur. warning Selectable if 1-90 Motor Thermal [19] Warning Protection is set to [20] ATEX ETR ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 94 Digital input x30/2 Below I low [77] Digital input x30/3 Above I high [78] Digital input x30/4 [10] Out of speed range [79] Digital input x46/1 [11] Below speed low ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 95 Changes the active set-up (0-10 Active Set- [15] Select preset ref Selects preset reference 5. up) to ‘1’. If the active preset reference is changed, it will merge with other preset reference ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 96 Any output with SL output B will be low. [34] Set digital out C Any output with SL output Cwill be low. [35] Set digital out Any output with SL output D will be low. D low ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 97: Parameters: 14-** Special Functions
10 automatic resets after tripping. Set switches S201 (A53) and S202 (A54) = ON./I. Insert the test plug (see below). Connect to mains supply. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 98 [0] Normal operation. converter) when running with reduced pump speed after load on the frequency converter has exceeded the allowable limit (110% for 60 s). ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 99 Table 6.11 Table for Selection of Choice of Action when Selected Alarm Appears D = Default setting. x = possible selection. 1) Only high power drives In FC small and medium A69 is only a warning ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 100: Parameters: 15-** Drive Information
15-06 Reset kWh Counter Option: Function: Do not reset Nno reset of the kWh counter is desired. Reset counter Press [OK] to reset the kWh counter to zero (see 15-02 kWh Counter). ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... -
Page 101: Parameters: 16-** Data Read-Outs
Consequently, the min. value and the max. actual motor voltage and motor current. value will depend on the max. motor current The value is filtered, and therefore approx. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 102 Consequently, the min. value nameplate data on the connected and the max. value will depend on the max. motor current as well as the ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 103 16-52 Feedback [Unit] Range: Function: 0.000 Reference- [-999999.999 - View the feedback unit FeedbackUnit 999999.999 resulting from the ReferenceFeed- selection of unit and backUnit] scaling in 3-00 Reference Range, 3-01 Reference/ ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 104 [3] Pt 1000 [°F] [4] Ni 1000 [°C] [5] Ni 1000 [°F] 16-62 Analog Input 53 Range: Function: 0.000 [-20.000 - 20.000 ] View the actual value at input 53. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 105 Control word depends on the Fieldbus [0 - 4294967295 ] View the warning word sent via the option installed and the Control word profile serial communication port in hex code. selected in 8-10 Control Profile. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 106 16-95 Ext. Status Word 2 Range: Function: [0 - 4294967295 ] Returns the extended warning word 2 sent via the serial communication port in hex code. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 107: Parameters: 25-** Cascade Controller
Illustration 6.25 Cascade Controller Feedback Signals ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 108 ® Parameter Descriptions Operating Instructions VLT CDS302 and CDS303 Illustration 6.26 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 109 Parameters for setting the bandwidth within which the disconnected to have equal running hours for pressure/temperature will be allowed to operate before each compressor. staging/destaging fixed speed compressors. Also includes various timers to stabilize the control. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 110 Cascade Controller must stop the system immediately by cutting out all the fixed speed compressors. This is basically the same as Emergency Stop (Coast/Coast inverse Command) for the Cascade Controller. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 111 25-29 Destage Function Option: Function: Disabled Enabled The Destage Function ensures that the lowest numbers of compressors are running to save energy. If the Destage Function is set to [0] ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 112 “Destaging Speed” the fixed speed until a preset time after the stopping of the compressor is destaged. The Destaging Threshold ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 113 “Staging Speed” the fixed speed compressor is staged on. Staging Speed calculation is based on 25-42 Staging Threshold and 4-14 Motor Speed High Illustration 6.36 Limit [Hz]. Staging Speed is calculated with the following formula: ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 114 (bottom graph) are running before the Range: Function: staging command. When the [0] Slow transfer command is 24 h [1 – 999 If [1] Alternation Time Interval option in 25-51 Alternation Event is selected, the ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 115 Mode at Alternation and Illustration 6.37 Destaging The Pack Controller is destaging fixed speed for description of staging and compressors. alternation. Lead Not Set No compressor available to be assigned as variable speed compressor. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 116 The default value of each Compressor ON Time counter value of Manual Alternation is [0] Off. If a can be reset to 0 by writing in the ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 117 [0] Off. If the parameter is set to the number which equals the actual variable speed compressor, the parameter will be reset to [0] immediately after. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 118: Parameters: 28-** Compressor Functions
[10 – 120 s ] This parameter controls the duration of oil itself in pipes and bends. The oil deposits can be returned return boosts. to the crankcase by increasing velocity for short periods at ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 119 10 Hz lower than the [160] ˚F previous step. The initial step occurs when the discharge temperature rises from below to above warning level and ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 120 [0 – 60.0 Sec] Set the duration of the DC-brake Activate the DC-hold current when the motor is current. stopped. The current level is defined in 28-31 Heating DC Current. Disabled ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 121 Motor Speed Low Limit is 1800 RPM the four calculated intervals become Low: 1800 RPM ≤ speed < 2350 RPM Med: 2350 RPM ≤ speed < 3450 RPM High: 3450 RPM ≤ speed < 4550 RPM ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 122: Parameter Lists
0.1. The value 100 is therefore read as 10.0. Examples: 0s ⇒ conversion index 0 0.00s ⇒ conversion index -2 0ms ⇒ conversion index -3 0.00ms ⇒ conversion index -5 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 123 Set Date and Time ExpressionLimit All set-ups TRUE 0-71 Date Format ExpressionLimit 1 set-up TRUE Uint8 0-72 Time Format ExpressionLimit 1 set-up TRUE Uint8 0-74 DST/Summertime [0] Off 1 set-up TRUE Uint8 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 124 0-82 Additional Working Days ExpressionLimit 1 set-up TRUE TimeOf 0-83 Additional Non-Working Days ExpressionLimit 1 set-up TRUE VisStr[2 0-89 Date and Time Readout 0 N/A All set-ups TRUE Table 6.18 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 125 All set-ups TRUE Uint8 1-73 Flying Start ExpressionLimit All set-ups FALSE Uint8 1-74 Start Speed [RPM] ExpressionLimit All set-ups TRUE Uint16 1-75 Start Speed [Hz] ExpressionLimit All set-ups TRUE Uint16 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 126 1-90 Motor Thermal Protection ExpressionLimit All set-ups TRUE Uint8 1-91 Motor External Fan [0] None All set-ups TRUE Uint8 1-93 Thermistor Source [0] None All set-ups TRUE Uint8 Table 6.19 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 127 All set-ups TRUE Uint8 3-93 Maximum Limit 100 % All set-ups TRUE Int16 3-94 Minimum Limit All set-ups TRUE Int16 3-95 Ramp Delay 1 N/A All set-ups TRUE TimD Table 6.20 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 128 Bypass Speed To [RPM] ExpressionLimit All set-ups TRUE Uint16 4-63 Bypass Speed To [Hz] ExpressionLimit All set-ups TRUE Uint16 4-64 Semi-Auto Bypass Set-up [0] Off All set-ups FALSE Uint8 Table 6.21 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 129 TRUE Uint16 5-95 Pulse Out #29 Bus Control All set-ups TRUE 5-96 Pulse Out #29 Timeout Preset 1 set-up TRUE Uint16 5-97 Pulse Out #X30/6 Bus Control All set-ups TRUE ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 130 CDS302 and CDS303 Par. Parameter description Default value 4-set-up Change Conver- Type No. # during sion index operation 5-98 Pulse Out #X30/6 Timeout Preset 1 set-up TRUE Uint16 Table 6.22 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 131 Uint8 6-61 Terminal X30/8 Min. Scale All set-ups TRUE Int16 6-62 Terminal X30/8 Max. Scale 100 % All set-ups TRUE Int16 6-63 Terminal X30/8 Output Bus Control All set-ups TRUE ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 132 CDS302 and CDS303 Par. Parameter description Default value 4-set-up Change Conver- Type No. # during sion index operation 6-64 Terminal X30/8 Output Timeout Preset 1 set-up TRUE Uint16 Table 6.23 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 133 Process PID Diff. Gain Limit 5.0 N/A All set-ups TRUE Uint16 7-38 Process PID Feed Forward Factor All set-ups TRUE Uint16 7-39 On Reference Bandwidth All set-ups TRUE Uint8 Table 6.24 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 134 Uint16 8-94 Bus Feedback 1 0 N/A 1 set-up TRUE 8-95 Bus Feedback 2 0 N/A 1 set-up TRUE 8-96 Bus Feedback 3 0 N/A 1 set-up TRUE Table 6.25 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 135 [0] Trip All set-ups TRUE Uint8 14-61 Function at Inverter Overload [0] Trip All set-ups TRUE Uint8 14-62 Inv. Overload Derate Current 95 % All set-ups TRUE Uint16 Table 6.26 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 136 15-63 Option Serial No 0 N/A All set-ups FALSE VisStr[18] 15-70 Option in Slot A 0 N/A All set-ups FALSE VisStr[30] 15-71 Slot A Option SW Version 0 N/A All set-ups FALSE VisStr[20] ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 137 15-9* Parameter Info 15-92 Defined Parameters 0 N/A All set-ups FALSE Uint16 15-93 Modified Parameters 0 N/A All set-ups FALSE Uint16 15-99 Parameter Metadata 0 N/A All set-ups FALSE Uint16 Table 6.27 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 138 Pulse Input #29 [Hz] 0 N/A All set-ups FALSE Int32 16-68 Pulse Input #33 [Hz] 0 N/A All set-ups FALSE Int32 16-69 Pulse Output #27 [Hz] 0 N/A All set-ups FALSE Int32 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 139 Ext. Status Word 0 N/A All set-ups FALSE Uint32 16-95 Ext. Status Word 2 0 N/A All set-ups FALSE Uint32 16-96 Maintenance Word 0 N/A All set-ups FALSE Uint32 Table 6.28 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 140 25-88 Pack capacity [%] All set-ups TRUE Uint16 25-9* Service 25-90 Compressor Interlock [0] Off All set-ups TRUE Uint8 25-91 Manual Alternation 0 N/A All set-ups TRUE Uint8 Table 6.29 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 141 0 N/A All set-ups TRUE Int16 28-9* Injection Control 28-90 Injection On [0] Off All set-ups TRUE Uint8 28-91 Delayed Compressor Start [0] No All set-ups TRUE Uint8 Table 6.30 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 142: Troubleshooting
DC link voltage low DC over-voltage DC under voltage Inverter overloaded Motor ETR over temperature 1-90 Motor Thermal Protection Motor thermistor over temperature 1-90 Motor Thermal Protection Torque limit Over Current ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 143 1.8 V supply low Speed limit 1-86 Trip Speed Low [RPM] AMA calibration failed AMA check U and I AMA low I AMA motor too big AMA motor too small ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 144 [Reset] 1) Can not be Auto reset via 14-20 Reset Mode or make a reset by a digital input (parameter group 5-1* ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 145 Mains ph. Loss (W4) Out of Speed Range 00008000 32768 AMA Not OK reserved No Motor (W3) OVC Active 00010000 65536 Live Zero Error (A2) reserved Live Zero Error (W2) AC Brake ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 146 This warning or alarm only appears if programmed by the frequency converter. user in 6-01 Live Zero Timeout Function. The signal on one of the analog inputs is less than 50% of the minimum ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 147 18 or 19 (digital input PNP only) The fault is that the frequency converter has run with and terminal 50. Check 1-93 Thermistor Source more than 100% overload for too long. selects terminal 18 or 19. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 148 The fan warning function is an extra protective function that checks if the fan is running/mounted. The fan warning 15-42 Voltage can be disabled in 14-53 Fan Monitor ([0] Disabled). ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 149 The temperature fault will not reset until the temperature falls below a defined heatsink temperature. Check for loose or missing wiring The trip and reset points are different based on the frequency converter power size. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 150 Troubleshooting Operating Instructions VLT CDS302 and CDS303 It may be necessary to contact your Danfoss supplier or WARNING 42, Overload of digital output on X30/6 or service department. Note the code number for further overload of digital output on X30/7 troubleshooting directions.
- Page 151 Operating Instructions VLT CDS302 and CDS303 ALARM 50, AMA calibration failed WARNING/ALARM 65, Control card over temperature The cutout temperature of the control card is 80 °C. Contact your Danfoss supplier or Danfoss Service Department. Troubleshooting • ALARM 51, AMA check U...
- Page 152 ALARM 81, CSIV corrupt and the typecode changed. Reset to remove the warning CSIV file has syntax errors. and resume normal operation. ALARM 82, CSIV parameter error CSIV failed to init a parameter. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 153: General Specifications
Further options and customer load may add up to 30W to the losses. (Though typical only 4 W extra for a fully loaded control card, or options for slot A or slot B, each). ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 154 Although measurements are made with state of the art equipment, some measurement inaccuracy must be allowed for (±5%). 5) The three values for the max. cable cross section are for single core, flexible wire and flexible wire with sleeve, respectively. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 155 1) High overload = 160% torque during 60 s., Normal overload = 110% torque during 60 s. 2) American Wire Gauge. 3) Measured using 5 m screened motor cables at rated load and rated frequency. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 156 Max. cable cross-section with Disconnect (AWG)] Estimated power loss at rated max. load [W] Weight, enclosure IP21, [kg] Weight, 23.5 23.5 enclosure IP20 [kg] 0.98 0.98 0.98 Efficiency Table 8.3 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 157 EN 60204-1, EN 50178, EN 61800-2, EN 61800-3, and EN 954-1. For correct and safe use of the Safe Stop function follow the related information and instructions in the Application Guidelines. ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 158 The 10 V DC supply is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals Control Card, RS-485 Serial Communication Terminal number 68 (P,TX+, RX+), 69 (N,TX-, RX-) Terminal number 61 Common for terminals 68 and 69 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
- Page 159 Derating for high altitude, see section on special conditions EMC standards, Emission EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3 EN 61800-3, EN 61000-6-1/2, EMC standards, Immunity EN 61000-4-2, EN 61000-4-3, EN 61000-4-4, EN 61000-4-5, EN 61000-4-6 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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Page 160: Index
OBW Time, 25-25................111 Output................... 59, 97 Operating Mode..................46 Outputs....................63 Output Current................... 147 Override Bandwidth, 25-21............110 Earth Leakage Current............... 6, 7, 27 ETR......................102 Phase Loss..................... 147 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor... - Page 161 Short-circuit Protection..............29 Staging Bandwidth, 25-20................110 Speed, 25-44..................113 Threshold, 25-42................112 Supply Voltage..................149 Surroundings..................159 Thermal Load..................102 Voltage Imbalance..................147 Level..................7, 157, 158 Warnings....................142 ® MG34M302 - VLT is a registered Danfoss trademark/Commercial Compressor...
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