Danfoss VLT Micro Drive FC 51 Series User manual

1QuickGuide
1.1 Safety
1.1.1 Warnings
High Voltage Warning:
The voltage of the frequency converter is dangerous whenever it is connected to mains. Incorrect in-
stallation of the motor or frequency converter may cause damage to the equipment, serious injury or
death. Consequently, it is essential to comply with the instructions in this manual as well as local and
national rules and safety regulations.
Warning:
Touching the electrical parts may be fatal - even after the equipment has been disconnected from mains.
Also make sure that other voltage inputs have been disconnected (linkage of DC intermediate circuit).
Be aware that there may be high voltage on the DC link even when the LEDs are turned off.
Before touching any potentially live parts of the frequency converter, wait at least 4 minutes for all M1,
M2 and M3 sizes.
Wait at least 15 minutes for all M4 and M5 sizes.
Leakage Current:
The earth leakage current from the frequency converter exceeds 3.5 mA. According to IEC 61800-5-1 a
reinforced Protective Earth connection must be ensured by means of a min. 10mm² Cu or an addtional
PE wire - with the same cable cross section as the Mains wiring - must be terminated separately.
Residual Current Device:
This product can cause a DC current in the protective conductor. Where a residual current device (RCD)
is used for extra protection, only an RCD of Type B (time delayed) shall be used on the supply side of
this product. See also Danfoss Application Note on RCD, MN.90.GX.YY.
Protective earthing of the frequency converter and the use of RCDs must always follow national and
local regulations.
Motor Thermal Protection:
Motor overload protection is possible by setting Parameter 1-90 Motor thermal protection to the value
ETR trip. For the North American market: Implemented ETR function provide class 20 motor overload
protection, in accordance with NEC.
Installation in high altitudes:
For altitudes above 2 km, please contact Danfoss regarding PELV.
1.1.2 Safety Instructions
• Make sure the frequency converter is properly connected to earth.
• Do not remove mains connections, motor connections or other power connections while the frequency con-
verter is connected to power.
• Protect users against supply voltage.
• Protect the motor against overloading according to national and local regulations.
• The earth leakage current exceeds 3.5 mA.
• The [OFF] key is not a safety switch. It does not disconnect the frequency converter from mains.
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1.2 Introduction
1.2.1 Available Literature
This quick guide contains the basic information necessary for installing and running the drive.
If more information is needed, the literature below can be downloaded from:
http: //www.danfoss.com/BusinessAreas/DrivesSolutions/Documentations
Title Literature no.
VLT Micro Drive FC 51 Operating Instructions MG.02.AX.YY
VLT Micro Drive FC 51 Quick Guide MG.02.BX.YY
VLT Micro Drive FC 51 Programming Guide MG.02.CX.YY
FC 51 LCP Mounting Instruction MI.02.AX.YY
FC 51 De-coupling Plate Mounting Instruction MI.02.BX.YY
FC 51 Remote Mounting Kit Mounting Instruction MI.02.CX.YY
FC 51 DIN Rail Kit Mounting Instruction MI.02.DX.YY
FC 51 IP21 Kit Mounting Instruction MI.02.EX.YY
FC 51 Nema1 Kit Mounting Instruction MI.02.FX.YY
X = Revision Number, Y = Language code
1.2.2 Approvals
1.2.3 IT Mains
IT Mains
Installation on isolated mains source, i.e. IT mains.
Max. supply voltage allowed when connected to mains: 440 V.
As an option, Danfoss offers recommended line filters for improved harmonics performance.
1.2.4 Avoid unintended Start
While the frequency converter is connected to mains, the motor can be started/stopped using digital commands, bus
commands, references or via the Local Control Panel.
• Disconnect the frequency converter from mains whenever personal safety considerations make it necessary
to avoid unintended start of any motors.
• To avoid unintended start, always activate the [OFF] key before changing parameters.
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1.2.5 Disposal Instruction
Equipment containing electrical components must not be disposed of together with do-
mestic waste.
It must be separately collected with electrical and electronic waste according to local and
currently valid legislation.
1.3 Installation
1.3.1 Before Commencing Repair Work
1. Disconnect FC 51 from mains (and external DC supply, if present.)
2. Wait for 4 minutes (M1, M2 and M3) and 15 minutes (M4 and M5) for discharge of the DC-link.
3. Disconnect DC bus terminals and brake terminals (if present)
4. Remove motor cable
1.3.2 Side-by-Side Installation
The frequency converter can be mounted side-by-side for IP 20 rating units and requires 100 mm clearance above and
below for cooling. Please refer to the specifications near the end of this document for details on environmental ratings
of the frequency converter.
1.3.3 Mechanical Dimensions
A template for drilling can be found on the flap of the packaging.
Illustration 1.1: Mechanical dimensions.
Power (kW) Height (mm) Width (mm) Depth
1)
(mm) Max. Weight
Frame 1 X 200-240 V 3 X 200 -240 V 3 X 380-480 V AA (incl. decoupling
plate) a B b C Kg
M1 0.18 - 0.75 0.25 - 0.75 0.37 - 0.75 150 205 140.4 70 55 148 1.1
M2 1.5 1.5 1.5 - 2.2 176 230 166.4 75 59 168 1.6
M3 2.2 2.2 -3.7 3.0 - 7.5 239 294 226 90 69 194 3.0
M4 11.0-15.0 292 347.5 272.4 125 97 241 6.0
M5 18.5-22.0 335 387.5 315 165 140 248 9.5
1)
For LCP with potentiometer, please add 7.6 mm.
Table 1.1: Mechanical Dimensions
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1.3.4 Electrical Installation in General
All cabling must comply with national and local regulations on cable cross-sections and ambient tem-
perature. Copper conductors required, (60-75° C) recommended.
Details of terminal tightening torques.
Power (kW) Torque (Nm)
Frame 1 x 200-240 V 3 x 200-240 V 3 x 380-480 V Line Motor DC connection/Brake Control Terminals Earth Relay
M1 0.18 - 0.75 0.25 - 0.75 0.37 - 0.75 1.4 0.7 Spade
1)
0.15 30.5
M2 1.5 1.5 1.5 - 2.2 1.4 0.7 Spade
1)
0.15 30.5
M3 2.2 2.2 - 3.7 3.0 - 7.5 1.4 0.7 Spade
1)
0.15 30.5
M4 11.0-15.0 1.25 1.25 1.25 0.15 30.5
M5 18.5-22.0 1.25 1.25 1.25 0.15 30.5
1)
Spade connectors (6.3 mm Faston plugs)
Table 1.2: Tightening of terminals.
1.3.5 Fuses
Branch circuit protection:
In order to protect the installation against electrical and fire hazard, all branch circuits in an installation, switch gear,
machines etc., must be short-circuited and overcurrent protected according to national/international regulations.
Short circuit protection:
Danfoss recommends using the fuses mentioned in the following tables to protect service personnel or other equipment
in case of an internal failure in the unit or short-circuit on DC-link. The frequency converter provides full short circuit
protection in case of a short-circuit on the motor or brake output.
Overcurrent protection:
Provide overload protection to avoid overheating of the cables in the installation. Overcurrent protection must always
be carried out according to national regulations. Fuses must be designed for protection in a circuit capable of supplying
a maximum of 100,000 A
rms
(symmetrical), 480 V maximum.
Non UL compliance:
If UL/cUL is not to be complied with, Danfoss recommends using the fuses mentioned in the below table, which will
ensure compliance with EN50178/IEC61800-5-1:
In case of malfunction, not following the fuse recommendation may result in damage to the frequency converter.
FC 51
UL
Max. fuses non UL
Bussmann Bussmann Bussmann Littel fuse Ferraz-
Shawmut
Ferraz-
Shawmut
1 X 200-240 V
kW Type RK1 Type J Type T Type RK1 Type CC Type RK1 Type gG
0K18 - 0K37 KTN-R15 JKS-15 JJN-15 KLN-R15 ATM-R15 A2K-15R 16A
0K75 KTN-R25 JKS-25 JJN-25 KLN-R25 ATM-R25 A2K-25R 25A
1K5 KTN-R35 JKS-35 JJN-35 KLN-R35 - A2K-35R 35A
2K2 KTN-R45 JKS-45 JJN-45 KLN-R45 -A2K-45R 40A
3 x 200-240 V
0K25 KTN-R10 JKS-10 JJN-10 KLN-R10 ATM-R10 A2K-10R 10A
0K37 KTN-R15 JKS-15 JJN-15 KLN-R15 ATM-R15 A2K-15R 16A
0K75 KTN-R20 JKS-20 JJN-20 KLN-R20 ATM-R20 A2K-20R 20A
1K5 KTN-R25 JKS-25 JJN-25 KLN-R25 ATM-R25 A2K-25R 25A
2K2 KTN-R40 JKS-40 JJN-40 KLN-R40 ATM-R40 A2K-40R 40A
3K7 KTN-R40 JKS-40 JJN-40 KLN-R40 -A2K-40R 40A
3 x 380-480 V
0K37 - 0K75 KTS-R10 JKS-10 JJS-10 KLS-R10 ATM-R10 A6K-10R 10A
1K5 KTS-R15 JKS-15 JJS-15 KLS-R15 ATM-R15 A2K-15R 16A
2K2 KTS-R20 JKS-20 JJS-20 KLS-R20 ATM-R20 A6K-20R 20A
3K0 KTS-R40 JKS-40 JJS-40 KLS-R40 ATM-R40 A6K405R 40A
4K0 KTS-R40 JKS-40 JJS-40 KLS-R40 ATM-R40 A6K-40R 40A
5K5 KTS-R40 JKS-40 JJS-40 KLS-R40 -A6K-40R 40A
7K5 KTS-R40 JKS-40 JJS-40 KLS-R40 - A6K-40R 40A
11K0 KTS-R60 JKS-60 JJS-60 KLS-R60 -A6K-60R 63A
15K0 KTS-R60 JKS-60 JJS-60 KLS-R60 - A6K-60R 63A
18K5 KTS-R60 JKS-60 JJS-60 KLS-R60 -A6K-60R 80A
22K0 KTS-R60 JKS-60 JJS-60 KLS-R60 - A6K-60R 80A
Table 1.3: Fuses
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1.3.6 Connecting to Mains and Motor
The frequency converter is designed to operate all standard three-phased asynchronous motors.
The frequency converter is designed to accept mains/motor cables with a maximum cross-section of 4 mm
2
/10 AWG
(M1, M2 and M3) and maximum cross-section 16 mm
2
/6 AWG (M4 and M5).
• Use a shielded/armored motor cable to comply with EMC emission specifications, and connect this cable to
both the decoupling plate and the motor metal.
• Keep motor cable as short as possible to reduce the noise level and leakage currents.
• For further details on mounting of the decoupling plate, please see instruction MI.02.BX.YY.
• Also see EMC-Correct Installation in Operating Instruction MG.02.AX.YY.
Step 1: First, mount the earth wires to earth terminal.
Step 2: Connect motor to terminals U, V and W.
Step 3: Mount mains supply to terminals L1/L, L2 and
L3/N (3-phase) or L1/L and L3/N (single-phase) and
tighten.
Illustration 1.2: Mounting of earth cable, mains and motor
wires.
1.3.7 Control Terminals
All control cable terminals are located underneath the
terminal cover in front of the frequency converter. Re-
move the terminal cover using a screwdriver.
See back of terminal cover for outlines of
control terminals and switches.
Do not operate switches with power on the
frequency converter.
Parameter 6-19 must be set according to
Switch 4 position.
Illustration 1.3: Removing terminal cover.
Switch 1: *OFF = PNP terminals 29
ON = NPN terminals 29
Switch 2: *OFF = PNP terminal 18, 19, 27 and 33
ON = NPN terminal 18, 19, 27 and 33
Switch 3: No function
Switch 4: *OFF = Terminal 53 0 - 10 V
ON = Terminal 53 0/4 - 20 mA
* = default setting
Table 1.4: Settings for S200 Switches 1-4
Illustration 1.4: S200 Switches 1-4.
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The illustration below shows all control terminals of the frequency converter. Applying Start (term. 18) and an analog
reference (term. 53 or 60) make the frequency converter run.
Illustration 1.5: Overview of control terminals in PNP-configuration and factory setting.
1.3.8 Power Circuit - Overview
Illustration 1.6: Diagram showing all electrical terminals.
* Brake (BR+ and BR-) are not applicable for frame M1.
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Brake resistors are available from Danfoss.
Improved power factor and EMC performance can be achieved by installing optional Danfoss line filters.
Danfoss power filters can also be used for load sharing.
1.3.9 Load sharing/Brake
Use 6.3 mm insulated Faston Plugs designed for high voltage for DC (Load Sharing and brake).
Contact Danfoss or see instruction no. MI.50.Nx.02 for load sharing and instruction no. MI.90.Fx.02 for brake.
Load sharing: Connect terminals -UDC and +UDC/+BR.
Brake: Connect terminals -BR and +UDC/+BR (Not applicable for frame M1).
Note that voltage levels of up to 850 V DC may occur between terminals
+UDC/+BR and -UDC. Not short circuit protected.
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1.4 Programming
1.4.1 Programming with LCP
For detailed information on programming, please see Programming Guide , MG.02.CX.YY.
NB!
The frequency converter can also be programmed from a PC via RS485 com-port by installing the MCT-10
Set-up Software.
This software can either be ordered using code number 130B1000 or downloaded from the Danfoss Web
site: www.danfoss.com/BusinessAreas/DrivesSolutions/softwaredownload
Illustration 1.7: Description of LCP buttons and display
Use the [MENU] key to select one of the following menus:
Status:
For readouts only.
Quick Menu:
For access to Quick Menus 1 and 2, respectively.
Main Menu:
For access to all parameters.
Navigation Keys:
[Back]: For moving to the previous step or layer in the
navigation structure.
Arrows [
▲
] [
▼
]: For manoeuvring between parameter
groups, parameters and within parameters.
[OK]: For selecting a parameter and for accepting
changes to parameter settings.
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Operation Keys:
A yellow light above the operation keys indicates the active key.
[Hand on]: Starts the motor and enables control of the frequency converter via the LCP.
[Off/Reset]: Stops the motor (off). If in alarm mode the alarm will be reset.
[Auto on]: The frequency converter is controlled either via control terminals or serial communication.
[Potentiometer] (LCP12): The potentiometer works in two ways depending on the mode in which the frequency
converter is running.
In
Auto Mode the potentiometer acts as an extra programmable analog input.
In
Hand on Mode the potentiometer controls local reference.
Arrows [
▲
] and [
▼
] toggles between the choices in each menu.
The display indicates the status mode with a small arrow above “Status”.
The Quick Menu gives easy access to the most frequently used parameters.
1. To enter the Quick Menu, press [MENU] key until indicator in display is placed above
Quick Menu .
2. Use [
▲
] [
▼
] to select either QM1 or QM2, then press [OK].
3. Use [
▲
] [
▼
] to browse through the parameters in the Quick Menu.
4. Press [OK] to select a parameter.
5. Use [
▲
] [
▼
] to change the value of a parameter setting.
6. Press [OK] to accept the change.
7. To exit, press either [Back] twice to enter
Status , or press [Menu] once to enter Main Menu .
No Name Range Default Function
1-20 Motor Power [kW]/[HP] [0.09kW/0.12HP -30kW/40HP] Unit dependent Enter motor power from nameplate data
1-22 Motor Voltage [50 - 999V] 230/400 Enter motor voltage from nameplate data
1-23 Motor Frequency [20 - 400 Hz] 50 Enter motor frequency form nameplate data
1-24 Motor Current [0.01 - 100.00 A] Unit dependent Enter motor current from nameplate data
1-25 Motor nominal speed [100 - 9999 RPM] Unit dependent Enter motor nominal speed from nameplate data
1-29 Automatic Motor Tuning
(AMT)
[0] = off
[2] = Enable AMT
[0] = off Use AMT to optimize motor performance.
1. Stop VLT
2. Choose [2]
3. "Hand On"
3-02 Minimum reference [-4999 - 4999] 0Enter value for minimum reference
3-03 Maximum reference [-4999 - 4999] 50.00 Enter value for maximum reference
3-41 Ramp up time 1 [0.05 - 3600s] 3.00 (10.00
1)
)Ramp up time from 0 to rated motor frequency par. 1-23
3-42 Ramp down time 1 [0.05 - 3600s] 3.00 (10.00
1)
)Ramp down time form rated motor frequency par. 1-23
to 0
1)
M4 and M5 only
Table 1.5: Basic Settings Quick Menu 1
The Main Menu gives access to all parameters.
1. To enter the Main Menu, press [MENU] key until indicator in display is placed above
Main Menu .
2. Use [
▲
] [
▼
] to browse through the parameter groups.
3. Press [OK] to select a parameter group.
4. Use [
▲
] [
▼
] to browse through the parameters in the specific group.
5. Press [OK] to select the parameter.
6. Use [
▲
] [
▼
] to set/change the parameter value.
7. Press [OK] to accept the value.
8. To exit, press either [Back] twice to enter
Quick Menu , or press [Menu] once to enter Status .
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1.5 Parameter Overview
Parameter Overwiev
0-XX Operation/Display
0-0X Basic Settings
0-03 Regional Settings *[0] International [1] US 0-04 Oper. State at Power-up (Hand) [0] Resume *[1] Forced stop, ref = old [2] Forced stop, ref = 0 0-1X Set-up Handling 0-10 Active Set-up *[1] Setup 1 [2] Setup 2 [9] Multi Setup 0-11 Edit Set-up *[1] Setup 1 [2] Setup 2 [9] Active Setup 0-12 Link Setups [0] Not Linked *[20] Linked 0-31 Custom Readout Min Scale 0.00 – 9999.00 * 0.00 0-32 Custom Readout Max Scale 0.00 – 9999.00 * 100.0 0-4X LCP Keypad 0-40 [Hand on] Key on LCP [0] Disabled *[1] Enabled 0-41 [Off / Reset] Key on LCP [0] Disable All *[1] Enable All [2] Enable Reset Only 0-42 [Auto on] Key on LCP [0] Disabled *[1] Enabled 0-5X Copy/Save 0-50 LCP Copy *[0] No copy [1] All to LCP [2] All from LCP [3] Size indep. from LCP 0-51 Set-up Copy *[0] No copy [1] Copy from setup 1 [2] Copy from setup 2 [9] Copy from Factory setup 0-6X Password 0-60 (Main) Menu Password 0 - 999 * 0
1-XX Load/Motor
1-0X General Settings
1-00 Configuration Mode *[0] Speed open loop [3] Process 1-01 Motor Control Principle [0] U/f *[1] VVC+ 1-03 Torque Characteristics *[0] Constant torque [2] Automatic Energy Optim. 1-05 Local Mode Configuration [0] Speed Open Loop *[2] As config in par. 1-00 1-2X Motor Data 1-20 Motor Power [kW] [HP] [1] 0.09 kW/0.12 HP [2] 0.12 kW/0.16 HP [3] 0.18 kW/0.25 HP [4] 0.25 kW/0.33 HP [5] 0.37 kW/0.50 HP [6] 0.55 kW/0.75 HP [7] 0.75 kW/1.00 HP [8] 1.10 kW/1.50 HP [9] 1.50 kW/2.00 HP [10] 2.20 kW/3.00 HP [11] 3.00 kW/4.00 HP [12] 3.70 kW/5.00 HP [13] 4.00 kW/5.40 HP [14] 5.50 kW/7.50 HP [15] 7.50 kW/10.00 HP [16] 11.00 kW/15.00 HP [17] 15.00 kW/20.00 HP [18] 18.50 kW/25.00 HP [19] 22.00 kW/29.50 HP [20] 30.00 kW/40.00 HP 1-22 Motor Voltage 50 - 999 V * 230 - 400 V 1-23 Motor Frequency 20 - 400 Hz * 50 Hz 1-24 Motor Current 0.01 - 100.00 A * Motortype dep. 1-25 Motor Nominal Speed 100 - 9999 rpm * Motortype dep. 1-29 Automatic Motor Tuning (AMT) *[0] Off [2] Enable AMT 1-3X Adv. Motor Data 1-30 Stator Resistance (Rs) [Ohm] * Dep. on motor data
1-33 Stator Leakage Reactance (X1) [Ohm] * Dep. on motor data 1-35 Main Reactance (Xh) [Ohm] * Dep. on motor data
1-5X Load Indep. Setting 1-50 Motor Magnetisation at 0 Speed 0 - 300 % * 100 % 1-52 Min Speed Norm. Magnet. [Hz] 0.0 - 10.0 Hz * 0.0 Hz 1-55 U/f Characteristic - U 0 - 999.9 V 1-56 U/f Characteristic - F 0 - 400 Hz 1-6X Load Depen. Setting 1-60 Low Speed Load Compensation 0 - 199 % * 100 % 1-61 High Speed Load Compensation 0 - 199 % * 100 % 1-62 Slip Compensation -400 - 399 % * 100 % 1-63 Slip Compensation Time Constant 0.05 - 5.00 s * 0.10 s 1-7X Start Adjustments 1-71 Start Delay 0.0 - 10.0 s * 0.0 s 1-72 Start Function [0] DC hold / delay time [1] DC brake / delay time *[2] Coast / delay time 1-73 Flying Start *[0] Disabled [1] Enabled 1-8X Stop Adjustments 1-80 Function at Stop *[0] Coast [1] DC hold 1-82 Min Speed for Funct. at Stop [Hz] 0.0 - 20.0 Hz * 0.0 Hz 1-9XMotor Temperature 1-90 Motor Thermal Protection *[0] No protection [1] Termistor warning [2] Thermistor trip [3] Etr warning [4] Etr trip 1-93 Thermistor Resource *[0] None
[1] Analog input 53 [6] Digital input 29
2-XX Brakes
2-0XDC-Brake
2-00 DC Hold Current 0 - 150 % * 50 % 2-01 DC Brake Current 0 - 150 % * 50 % 2-02 DC Braking Time 0.0 - 60.0 s * 10.0 s 2-04 DC Brake Cut In Speed 0.0 - 400.0 Hz * 0.0 Hz 2-1X Brake Energy Funct. 2-10 Brake Function *[0] Off [1] Resistor brake [2] AC brake 2-11 Brake Resistor (ohm) 5 - 5000 * 5 2-16 AC Brake, Max current 0 - 150 % * 100 % 2-17 Over-voltage Control *[0] Disabled [1] Enabled (not at stop) [2] Enabled 2-2* Mechanical Brake 2-20 Release Brake Current 0.00 - 100.0 A * 0.00 A 2-22 Activate Brake Speed [Hz] 0.0 - 400.0 Hz * 0.0 Hz 3-XX Reference / Ramps
3-0X Reference Limits
3-00 Reference Range *[0] Min - Max [1] -Max - +Max 3-02 Minimum Reference -4999 - 4999 * 0.000 3-03 Maximum Reference -4999 - 4999 * 50.00 3-1X References 3-10 Preset Reference -100.0 - 100.0 % * 0.00 % 3-11 Jog Speed [Hz] 0.0 - 400.0 Hz * 5.0 Hz 3-12 Catch up/slow Down Value 0.00 - 100.0 % * 0.00 %
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3-14 Preset Relative Reference -100.0 - 100.0 % * 0.00 % 3-15 Reference Resource 1 [0] No function *[1] Analog Input 53 [2] Analog input 60 [8] Pulse input 33 [11] Local bus ref [21] LCP Potentiometer 3-16 Reference Resource 2 [0] No function [1] Analog Input 53 *[2] Analog input 60 [8] Pulse input 33 *[11] Local bus ref [21] LCP Potentiometer 3-17 Reference Resource 3 [0] No function [1] Analog Input 53 [2] Analog input 60 [8] Pulse input 33 *[11] Local bus ref [21] LCP Potentiometer 3-18 Relative Scaling Ref. Resource *[0] No function [1] Analog Input 53 [2] Analog input 60 [8] Pulse input 33 [11] Local bus ref [21] LCP Potentiometer 3-4X Ramp 1 3-40 Ramp 1 Type *[0] Linear [2] Sine2 ramp 3-41 Ramp 1 Ramp up Time 0.05 - 3600 s * 3.00 s (10.00 s
1)
)
3-42 Ramp 1 Ramp Down Time 0.05 - 3600 s * 3.00 s (10.00 s
1)
)
3-5X Ramp 2 3-50 Ramp 2 Type *[0] Linear [2] Sine2 ramp 3-51 Ramp 2 Ramp up Time 0.05 - 3600 s * 3.00 s (10.00 s
1)
)
3-52 Ramp 2 Ramp down Time 0.05 - 3600 s * 3.00 s (10.00 s
1)
)
3-8X Other Ramps 3-80 Jog Ramp Time 0.05 - 3600 s * 3.00 s (10.00 s
1)
)
3-81 Quick Stop Ramp Time 0.05 - 3600 s * 3.00 s(10.00 s
1)
)
4-XX Limits / Warnings
4-1X Motor Limits
4-10 Motor Speed Direction [0] Clockwise [1] CounterClockwise *[2] Both 4-12 Motor Speed Low Limit [Hz] 0.0 - 400.0 Hz * 0.0 Hz 4-14 Motor Speed High Limit [Hz] 0.1 - 400.0 Hz * 65.0 Hz 4-16 Torque Limit Motor Mode 0 - 400 % * 150 % 4-17 Torque Limit Generator Mode 0 - 400 % * 100 % 4-5X Adj. Warnings 4-50 Warning Current Low 0.00 - 100.00 A * 0.00 A 4-51 Warning Current High 0.00 - 100.00 A * 100.00 A 4-58 Missing Motor Phase Function [0] Off *[1] On 4-6X Speed Bypass 4-61 Bypass Speed From [Hz] 0.0 - 400.0 Hz * 0.0 Hz 4-63 Bypass Speed To [Hz] 0.0 - 400.0 Hz * 0.0 Hz 5-1X Digital Inputs 5-10 Terminal 18 Digital Input [0] No function [1] Reset [2] Coast inverse [3] Coast and reset inv. [4] Quick stop inverse [5] DC-brake inv. [6] Stop inv *[8] Start [9] Latched start [10] Reversing [11] Start reversing [12] Enable start forward [13] Enable start reverse [14] Jog
[16-18] Preset ref bit 0-2 [19] Freeze reference [20] Freeze output [21] Speed up [22] Speed down [23] Setup select bit 0 [28] Catch up [29] Slow down [34] Ramp bit 0 [60] Counter A (up) [61] Counter A (down) [62] Reset counter A [63] Counter B (up) [64] Counter B (down) [65] ResetCounter B 5-11 Terminal 19 Digital Input See par. 5-10. * [10] Reversing 5-12 Terminal 27 Digital Input See par. 5-10. * [1] Reset 5-13 Terminal 29 Digital Input See par. 5-10. * [14] Jog 5-15 Terminal 33 Digital Input See par. 5-10. * [16] Preset ref bit 0 [26] Precise Stop Inverse [27] Start, Precise Stop [32] Pulse Input 5-4X Relays 5-40 Function Relay *[0] No opreation [1] Control ready [2] Drive ready [3] Drive ready, Remote [4] Enable / No warning [5] Drive running [6] Running / No warning [7] Run in range / No warning [8] Run on ref / No warning [9] Alarm [10] Alarm or warning [12] Out of current range [13] Below current, low [14] Above current, high [21] Thermal warning [22] Ready, No thermal warning [23] Remote ready, No thermal warning [24] Ready, Voltage ok
[25] Reverse [26] Bus ok [28] Brake,NoWarn [29] Brake ready/NoFault [30] BrakeFault (IGBT) [32] Mech.brake control [36] Control word bit 11 [51] Local ref. active [52] Remote ref. active [53] No alarm [54] Start cmd active [55] Running reverse [56] Drive in hand mode [57] Drive in auto mode [60-63] Comparator 0-3 [70-73] Logic rule 0-3 [81] SL digital output B 5-5X Pulse Input 5-55 Terminal 33 Low Frequency 20 - 4999 Hz * 20 Hz 5-56 Terminal 33 High Frequency 21 - 5000 Hz * 5000 Hz 5-57 Term. 33 Low Ref./Feedb. Value -4999 - 4999 * 0.000 5-58 Term. 33 High Ref./Feedb. Value -4999 - 4999 * 50.000 6-XX Analog In/Out
6-0X Analog I/O Mode
6-00 Live Zero Timeout Time 1 - 99 s * 10 s 6-01 Live Zero TimeoutFunction *[0] Off [1] Freeze output [2] Stop [3] Jogging [4] Max speed [5] Stop and trip 6-1X Analog Input 1 6-10 Terminal 53 Low Voltage 0.00 - 9.99 V * 0.07 V 6-11 Terminal 53 High Voltage 0.01 - 10.00 V * 10.00 V 6-12 Terminal 53 Low Current 0.00 - 19.99 mA * 0.14 mA
1)
M4 and M5 only
Quick Guide for VLT Micro FC 51 1 Quick Guide
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1

6-13 Terminal 53 High Current 0.01 - 20.00 mA * 20.00 mA 6-14 Term. 53 Low Ref./Feedb. Value -4999 - 4999 * 0.000 6-15 Term. 53 High Ref./Feedb. Value -4999 - 4999 * 50.000 6-16 Terminal 53 Filter Time Constant 0.01 - 10.00 s * 0.01 s 6-19 Terminal 53 mode *[0] Voltage mode [1] Current mode 6-2X Analog Input 2 6-22 Terminal 60 Low Current 0.00 - 19.99 mA * 0.14 mA 6-23 Terminal 60 High Current 0.01 - 20.00 mA * 20.00 mA 6-24 Term. 60 Low Ref./Feedb. Value -4999 - 4999 * 0.000 6-25 Term. 60 High Ref./Feedb. Value -4999 - 4999 * 50.00 6-26 Terminal 60 Filter Time Constant 0.01 - 10.00 s * 0.01 s 6-8X LCP potentiometer 6-81 LCP potm. Low Reference -4999 - 4999 * 0.000 6-82 LCP potm. High Reference -4999 - 4999 * 50.00 6-9X Analog Output xx 6-90 Terminal 42 Mode *[0] 0-20 mA [1] 4-20 mA [2] Digital Output 6-91 Terminal 42 Analog Output *[0] No operation [10] Output Frequency [11] Reference [12] Feedback [13] Motor Current [16] Power [20] Bus Reference 6-92 Terminal 42 Digital Output See par. 5-40 *[0] No Operation [80] SL Digital Output A
6-93 Terminal 42 Output Min Scale 0.00 - 200.0 % * 0.00 % 6-94 Terminal 42 Output Max Scale 0.00 - 200.0 % * 100.0 %
7-XX Controllers
7-2X Process Ctrl. Feedb
7-20 Process CL Feedback 1 Resource *[0] NoFunction [1] Analog Input 53 [2] Analog input 60 [8] PulseInput33 [11] LocalBusRef 7-3X Process PI Ctrl. 7-30 Process PI Normal/ Inverse Ctrl *[0] Normal [1] Inverse 7-31 Process PI Anti Windup [0] Disable *[1] Enable 7-32 Process PI Start Speed 0.0 - 200.0 Hz * 0.0 Hz 7-33 Process PI Proportional Gain 0.00 - 10.00 * 0.01 7-34 Process PI Integral Time 0.10 - 9999 s * 9999 s 7-38 Process PI Feed Forward Factor 0 - 400 % * 0 % 7-39 On Reference Bandwidth 0 - 200 % * 5 % 8-XX Comm. and Options
8-0X General Settings
8-01 Control Site *[0] Digital and ControlWord [1] Digital only [2] ControlWord only 8-02 Control Word Source [0] None *[1] FC RS485 8-03 Control Word Timeout Time 0.1 - 6500 s * 1.0 s 8-04 Control Word Timeout Function *[0] Off [1] Freeze Output [2] Stop [3] Jogging
[4] Max. Speed [5] Stop and trip 8-06 Reset Control Word Timeout *[0] No Function [1] Do reset
8-3X FC Port Settings 8-30 Protocol *[0] FC [2] Modbus 8-31 Address 1 - 247 * 1 8-32 FC Port Baud Rate [0] 2400 Baud [1] 4800 Baud *[2] 9600 Baud [3] 19200 Baud [4] 38400 Baud 8-33 FC Port Parity *[0] Even Parity, 1 Stop Bit [1] Odd Parity, 1 Stop Bit [2] No Parity, 1 Stop Bit [3] No Parity, 2 Stop Bits 8-35 Minimum Response Delay 0.001-0.5 * 0.010 s 8-36 Max Response Delay 0.100 - 10.00 s * 5.000 s 8-5X Digital/Bus 8-50 Coasting Select [0] DigitalInput [1] Bus [2] LogicAnd *[3] LogicOr 8-51 Quick Stop Select See par. 8-50 * [3] LogicOr 8-52 DC Brake Select See par. 8-50 * [3] LogicOr 8-53 Start Select See par. 8-50 * [3] LogicOr 8-54 Reversing Select See par. 8-50 * [3] LogicOr 8-55 Set-up Select See par. 8-50 * [3] LogicOr 8-56 Preset Reference Select See par. 8-50 * [3] LogicOr
8-9X Bus Jog / Feedback 8-94 Bus feedback 1 0x8000 - 0x7FFF * 0 13-XX Smart Logic
13-0X SLC Settings
13-00 SL Controller Mode *[0] Off [1] On 13-01 Start Event [0] False [1] True [2] Running [3] InRange [4] OnReference [7] OutOfCurrentRange [8] BelowILow [9] AboveIHigh [16] ThermalWarning [17] MainOutOfRange [18] Reversing [19] Warning [20] Alarm_Trip [21] Alarm_TripLock [22-25] Comparator 0-3 [26-29] LogicRule0-3 [33] DigitalInput_18 [34] DigitalInput_19 [35] DigitalInput_27 [36] DigitalInput_29 [38] DigitalInput_33 *[39] StartCommand [40] DriveStopped 13-02 Stop Event See par. 13-01 * [40] DriveStopped 13-03 Reset SLC *[0] Do not reset [1] Reset SLC
1 Quick Guide Quick Guide for VLT Micro FC 51
12 MG.02.B5.02 - VLT®is a registered Danfoss trademark
1

13-1X Comparators 13-10 Comparator Operand *[0] Disabled [1] Reference [2] Feedback [3] MotorSpeed [4] MotorCurrent [6] MotorPower [7] MotorVoltage [8] DCLinkVoltage [12] AnalogInput53 [13] AnalogInput60 [18] PulseInput33 [20] AlarmNumber [30] CounterA [31] CounterB 13-11 Comparator Operator [0] Less Than *[1] Approximately equals [2] Greater Than 13-12 Comparator Value -9999 - 9999 * 0.0 13-2X Timers 13-20 SL Controller Timer 0.0 - 3600 s * 0.0 s 13-4X Logic Rules 13-40 Logic Rule Boolean 1 See par. 13-01 * [0] False [30] - [32] SL Time-out 0-2 13-41 Logic Rule Operator 1 *[0] Disabled [1] And [2] Or [3] And not [4] Or not [5] Not and [6] Not or [7] Not and not [8] Not or not 13-42 Logic Rule Boolean 2 See par. 13-40 * [0] False 13-43 Logic Rule Operator 2 See par. 13-41 * [0] Disabled 13-44 Logic Rule Boolean 3 See par. 13-40 * [0] False 13-5X States 13-51 SL Controller Event See par. 13-40 * [0] False 13-52 SL Controller Action *[0] Disabled
[1] NoAction [2] SelectSetup1 [3] SelectSetup2 [10-17] SelectPresetRef0-7 [18] SelectRamp1 [19] SelectRamp2 [22] Run [23] RunReverse [24] Stop [25] Qstop [26] DCstop [27] Coast [28] FreezeOutput [29] StartTimer0 [30] StartTimer1 [31] StartTimer2 [32] Set Digital Output A Low [33] Set Digital Output B Low [38] Set Digital Output A High [39] Set Digital Output B High [60] ResetCounterA [61] ResetCounterB
14-XX Special Functions
14-0X Inverter Switching
14-01 Switching Frequency [0] 2 kHz *[1] 4 kHz [2] 8 kHz [4] 16 kHz 14-03 Overmodulation [0] Off *[1] On 14-1X Mains monitoring 14-12 Function at mains imbalance *[0] Trip [1] Warning [2] Disabled 14-2X Trip Reset 14-20 Reset Mode *[0] Manual reset [1-9] AutoReset 1-9 [10] AutoReset 10 [11] AutoReset 15 [12] AutoReset 20 [13] Infinite auto reset 14-21 Automatic Restart Time 0 - 600 s * 10 s
14-22 Operation Mode *[0] Normal Operation [2] Initialisation 14-26 Action At Inverter Fault *[0] Trip [1] Warning
14-4X Energy Optimising 14-41 AEO Minimum Magnetisation 40 - 75 % * 66 % 15-XX Drive Information
15-0X Operating Data
15-00 Operating Days 15-01 Running Hours 15-02 kWh Counter 15-03 Power Ups 15-04 Over Temps 15-05 Over Volts 15-06 Reset kWh Counter *[0] Do not reset [1] Reset counter 15-07 Reset Running Hours Counter *[0] Do not reset [1] Reset counter 15-3X Fault Log 15-30 Fault Log: Error Code 15-4X Drive Identification 15-40 FC Type 15-41 Power Section 15-42 Voltage 15-43 Software Version 15-46 Frequency Converter Order. No 15-48 LCP Id No 15-51 Frequency Converter Serial No 16-XX Data Readouts
16-0X General Status
16-00 Control Word 0 - 0XFFFF 16-01 Reference [Unit] -4999 - 4999 * 0.000 16-02 Reference % -200.0 - 200.0 % * 0.0% 16-03 Status Word 0 - 0XFFFF 16-05 Main Actual Value [%] -200.0 - 200.0 % * 0.0% 16-09 Custom Readout Dep. on par. 0-31, 0-32 and 4-14
16-1X Motor Status 16-10 Power [kW] 16-11 Power [hp] 16-12 Motor Voltage [V] 16-13 Frequency [Hz] 16-14 Motor Current [A] 16-15 Frequency [%] 16-18 Motor Thermal [%] 16-3X Drive Status 16-30 DC Link Voltage 16-34 Heatsink Temp. 16-35 Inverter Thermal 16-36 Inv.Nom. Current 16-37 Inv. Max. Current 16-38 SL Controller State 16-5X Ref. / Feedb. 16-50 External Reference 16-51 Pulse Reference 16-52 Feedback [Unit] 16-6X Inputs / Outputs 16-60 Digital Input 18,19,27,33 0 - 1111 16-61 Digital Input 29 0 - 1 16-62 Analog Input 53 (volt) 16-63 Analog Input 53 (current) 16-64 Analog Input 60 16-65 Analog Output 42 [mA] 16-68 Pulse Input [Hz] 16-71 Relay Output [bin] 16-72 Counter A 16-73 Counter B 16-8X Fieldbus / FC Port 16-86 FC Port REF 1 0x8000 - 0x7FFFF 16-9X Diagnosis Readouts 16-90 Alarm Word 0 - 0XFFFFFFFF 16-92 Warning Word 0 - 0XFFFFFFFF 16-94 Ext. Status Word 0 - 0XFFFFFFFF
18-XX Extended Motor Data
18-8X Motor Resistors
18-80 Stator Resistance (High resolution) 0.000 - 99.990 ohm * 0.000 ohm 18-81 Stator Leakage Reactance(High resolu- tion) 0.000 - 99.990 ohm * 0.000 ohm
Quick Guide for VLT Micro FC 51 1 Quick Guide
MG.02.B5.02 - VLT®is a registered Danfoss trademark 13
1

1.6 Troubleshooting
No. Description Warning Alarm Trip
Lock
Error Cause of Problem
2Live zero error X X Signal on terminal 53 or 60 is less than 50% of value set in par.
6-10, 6-12 and 6-22.
4Mains phase loss
1)
X X X Missing phase on supply side, or too high voltage imbalance.
Check supply voltage.
7DC over voltage
1)
X X Intermediate circuit voltage exceeds limit.
8DC under voltage
1)
X X Intermediate circuit voltage drops below “voltage warning low”
limit.
9Inverter overloaded X X More than 100% load for too long.
10 Motor ETR over temperature X X Motor is too hot due to more than 100% load for too long.
11 Motor thermistor over tempera-
ture
X X Thermistor or thermistor connection is disconnected.
12 Torque limit X Torque exceeds value set in either par. 4-16 or 4-17.
13 Over Current X X X Inverter peak current limit is exceeded.
14 Earth fault X X Discharge from output phases to ground.
16 Short Circuit X X Short-circuit in motor or on motor terminals.
17 Control word timeout X X No communication to frequency converter.
25 Brake resistor short-circuited X X Brake resistor is short-circuited, thus brake function is disconnec-
ted.
27 Brake chopper short-circuited X X Brake transistor is short-circuited, thus brake function is discon-
nected.
28 Brake check X Brake resistor is not connected/working
29 Power board over temp X X X Heat-sink cut-out temperature has been reached.
30 Motor phase U missing X X Motor phase U is missing. Check the phase.
31 Motor phase V missing X X Motor phase V is missing. Check the phase.
32 Motor phase W missing X X Motor phase W is missing. Check the phase.
38 Internal fault X X Contact local Danfoss supplier.
44 Earth fault X X Discharge from output phases to ground.
47 Control Voltage Fault X X 24 V DC may be overloaded.
51 AMT check U
nom
and I
nom
X Wrong setting for motor voltage and/or motor current.
52 AMT low I
nom
X Motor current is too low. Check settings.
59 Current limit X VLT overload.
63 Mechanical Brake Low X Actual motor current has not exceeded “release brake” current
within “start delay” time window.
80 Drive Initialised to Default Value X All parameter settings are initialized to default settings.
84 The connection between drive
and LCP is lost
X No communication between LCP and frequency converter
85 Button disabled X See parameter group 0-4* LCP
86 Copy fail X An error occurred while copying from frequency converter to
LCP or vice versa.
87 LCP data invalid X Occurs when copying from LCP if the LCP contains erroneous data
- or if no data was uploaded to the LCP.
88 LCP data not compatible X Occurs when copying from LCP if data are moved between fre-
quency converters with major differences in software versions.
89 Parameter read only X Occurs when trying to write to a read-only parameter.
90 Parameter database busy X LCP and RS485 connection are trying to update parameters si-
multaneously.
91 Parameter value is not valid in
this mode
X Occurs when trying to write an illegal value to a parameter.
92 Parameter value exceeds the
min/max limits
X Occurs when trying to set a value outside the range.
nw
run
Not While RUNning X Parameter can only be changed when the motor is stopped.
Err. A wrong password was entered X Occurs when using a wrong password for changing a password-
protected parameter.
1)
These faults may be caused by mains distortions. Installing Danfoss Line Filter may rectify this problem.
Table 1.6: Warnings and AlarmsCode list
1 Quick Guide Quick Guide for VLT Micro FC 51
14 MG.02.B5.02 - VLT®is a registered Danfoss trademark
1

1.7 Specifications
1.7.1 Mains Supply 1 x 200 - 240 VAC
Normal overload 150% for 1 minute
Frequency converter
Typical Shaft Output [kW]
PK18
0.18
PK37
0.37
PK75
0.75
P1K5
1.5
P2K2
2.2
Typical Shaft Output [HP] 0.25 0.5 1 2 3
IP 20 Frame M1 Frame M1 Frame M1 Frame M2 Frame M3
Output current
Continuous (1 x 200-240 V ) [A] 1.2 2.2 4.2 6.8 9.6
Intermittent (1 x 200-240 V ) [A] 1.8 3.3 6.3 10.2 14.4
Max. cable size:
(mains, motor) [mm
2
/AWG] 4/10
Max. input current
Continuous (1 x 200-240 V ) [A] 3.3 6.1 11.6 18.7 26.4
Intermittent (1 x 200-240 V ) [A] 4.5 8.3 15.6 26.4 37.0
Max. mains fuses [A] See Section Fuses
Environment
Estimated power loss [W], Best case/
Typical
1)
12.5/
15.5
20.0/
25.0
36.5/
44.0
61.0/
67.0
81.0/
85.1
Weight enclosure IP20 [kg] 1.1 1.1 1.1 1.6 3.0
Efficiency [%], Best case/Typical
1)
95.6/
94.5
96.5/
95.6
96.6/
96.0
97.0/
96.7
96.9/
97.1
Table 1.7: Mains supply 1 x 200 - 240 VAC
1. At rated load conditions.
1.7.2 Mains Supply 3 x 200 - 240 VAC
Normal overload 150% for 1 minute
Frequency converter
Typical Shaft Output [kW]
PK25
0.25
PK37
0.37
PK75
0.75
P1K5
1.5
P2K2
2.2
P3K7
3.7
Typical Shaft Output [HP] 0.33 0.5 1 2 3 5
IP 20 Frame M1 Frame M1 Frame M1 Frame M2 Frame M3 Frame M3
Output current
Continuous (3 x 200-240 V ) [A] 1.5 2.2 4.2 6.8 9.6 15.2
Intermittent (3 x 200-240 V ) [A] 2.3 3.3 6.3 10.2 14.4 22.8
Max. cable size:
(mains, motor) [mm
2
/AWG] 4/10
Max. input current
Continuous (3 x 200-240 V ) [A] 2.4 3.5 6.7 10.9 15.4 24.3
Intermittent (3 x 200-240 V ) [A] 3.2 4.6 8.3 14.4 23.4 35.3
Max.mains fuses [A] See Section Fuses
Environment
Estimated power loss [W], Best case/
Typical
1)
14.0/
20.0
19.0/
24.0
31.5/
39.5
51.0/
57.0
72.0/
77.1
115.0/
122.8
Weight enclosure IP20 [kg] 1.1 1.1 1.1 1.6 3.0 3.0
Efficiency [%], Best case/Typical
1)
96.4/
94.9
96.7/
95.8
97.1/
96.3
97.4/
97.2
97.2/
97.4
97.3/
97.4
Table 1.8: Mains supply 3 x 200 - 240 VAC
1. At rated load conditions.
Quick Guide for VLT Micro FC 51 1 Quick Guide
MG.02.B5.02 - VLT®is a registered Danfoss trademark 15
1

1.7.3 Mains Supply 3 x 380 - 480 VAC
Normal overload 150% for 1 minute
Frequency converter
Typical Shaft Output [kW]
PK37
0.37
PK75
0.75
P1K5
1.5
P2K2
2.2
P3K0
3.0
P4K0
4.0
Typical Shaft Output [HP] 0.5 1 2 3 4 5
IP 20
Frame
M1
Frame
M1
Frame
M2
Frame
M2
Frame
M3
Frame
M3
Output current
Continuous (3 x 380-440 V) [A] 1.2 2.2 3.7 5.3 7.2 9.0
Intermittent (3 x 380-440 V) [A] 1.8 3.3 5.6 8.0 10.8 13.7
Continuous (3 x 440-480 V) [A] 1.1 2.1 3.4 4.8 6.3 8.2
Intermittent (3 x 440-480 V) [A] 1.7 3.2 5.1 7.2 9.5 12.3
Max. cable size:
(mains, motor) [mm
2
/ AWG] 4/10
Max. input current
Continuous (3 x 380-440 V ) [A] 1.9 3.5 5.9 8.5 11.5 14.4
Intermittent (3 x 380-440 V ) [A] 2.6 4.7 8.7 12.6 16.8 20.2
Continuous (3 x 440-480 V ) [A] 1.7 3.0 5.1 7.3 9.9 12.4
Intermittent (3 x 440-480 V ) [A] 2.3 4.0 7.5 10.8 14.4 17.5
Max. mains fuses [A] See Section
Fuses
Environment
Estimated power loss [W], Best case/
Typical
1)
18.5/
25.5
28.5/
43.5
41.5/
56.5
57.5/
81.5
75.0/
101.6
98.5/
133.5
Weight enclosure IP20 [kg] 1.1 1.1 1.6 1.6 3.0 3.0
Efficiency [%], Best case/
Typical
1)
96.8/
95.5
97.4/
96.0
98.0/
97.2
97.9/
97.1
98.0/
97.2
98.0/
97.3
Table 1.9: Mains supply 3 x 380 - 480 VAC
1. At rated load conditions.
Normal overload 150% for 1 minute
Frequency converter
Typical Shaft Output [kW]
P5K5
5.5
P7K5
7.5
P11K
11
P15K
15
P18K
18.5
P22K
22
Typical Shaft Output [HP] 7.5 10 15 20 25 30
IP 20
Frame
M3
Frame
M3
Frame
M4
Frame
M4
Frame
M5
Frame
M5
Output current
Continuous (3 x 380-440 V) [A] 12.0 15.5 23.0 31.0 37.0 43.0
Intermittent (3 x 380-440 V) [A] 18.0 23.5 34.5 46.5 55.5 64.5
Continuous (3 x 440-480 V) [A] 11.0 14.0 21.0 27.0 34.0 40.0
Intermittent (3 x 440-480 V) [A] 16.5 21.3 31.5 40.5 51.0 60.0
Max. cable size:
(mains, motor) [mm
2
/ AWG] 4/10 16/6
Max. input current
Continuous (3 x 380-440 V ) [A] 19.2 24.8 33.0 42.0 34.7 41.2
Intermittent (3 x 380-440 V ) [A] 27.4 36.3 47.5 60.0 49.0 57.6
Continuous (3 x 440-480 V ) [A] 16.6 21.4 29.0 36.0 31.5 37.5
Intermittent (3 x 440-480 V ) [A] 23.6 30.1 41.0 52.0 44.0 53.0
Max. mains fuses [A] See Section
Fuses
Environment
Estimated power loss [W], Best case/
Typical
1)
131.0/
166.8
175.0/
217.5
290.0/
342.0
387.0/
454.0
395.0/
428.0
467.0/
520.0
Weight enclosure IP20 [kg] 3.0 3.0
Efficiency [%], Best case/
Typical
1)
98.0/
97.5
98.0/
97.5
97.8/
97.4
97.7/
97.4
98.1/
98.0
98.1/
97.9
Table 1.10: Mains supply 3 x 380 - 480 VAC
1. At rated load conditions.
1 Quick Guide Quick Guide for VLT Micro FC 51
16 MG.02.B5.02 - VLT®is a registered Danfoss trademark
1

Protection and Features:
• Electronic thermal motor protection against overload.
• Temperature monitoring of the heatsink ensures that the frequency converter trips in case of overtemperature
• The frequency converter is protected against short-circuits between motor terminals U, V, W.
• If a motor phase is missing, the frequency trips and issues an alarm.
• If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
• Monitoring of the intermediate circuit voltage ensures that the frequency converter trips if the intermediate
circuit voltage is too low or too high.
• The frequency converter is protected against earth faults on motor terminals U, V, W.
Mains supply (L1/L, L2, L3/N):
Supply voltage 200-240 V ±10%
Supply voltage 380-480 V ±10%
Supply frequency 50/60 Hz
Max. imbalance temporary between mains phases 3.0 % of rated supply voltage
True Power Factor ()≥0.4 nominal at rated load
Displacement Power Factor (cos) near unity (> 0.98)
Switching on input supply L1/L, L2, L3/N (power-ups) maximum 2 times/min.
Environment according to EN60664-1 overvoltage category III/pollution degree 2
The unit is suitable for use on a circuit capable of delivering not more than 100.000 RMS symmetrical Amperes, 240/480
V maximum.
Motor output (U, V, W):
Output voltage 0 - 100% of supply voltage
Output frequency 0-200 Hz (VVC+), 0-400 Hz (u/f)
Switching on output Unlimited
Ramp times 0.05 - 3600 sec.
Cable lengths and cross sections:
Max. motor cable length, screened/armoured (EMC correct installation) 15 m
Max. motor cable length, unscreened/unarmoured 50 m
Max. cross section to motor, mains*
Connection to load sharing/brake (M1, M2, M3) 6.3 mm insulated Faston Plugs
Max. cross section to load sharing/brake (M4, M5) 16 mm
2
/6AWG
Maximum cross section to control terminals, rigid wire 1.5 mm
2
/16 AWG (2 x 0.75 mm
2
)
Maximum cross section to control terminals, flexible cable 1 mm
2
/18 AWG
Maximum cross section to control terminals, cable with enclosed core 0.5 mm
2
/20 AWG
Minimum cross section to control terminals 0.25 mm
2
* See tables for mains supply for more information!
Digital inputs (Pulse/enocder inputs):
Programmable digital inputs (Pulse/encoder) 5 (1)
Terminal number 18, 19, 27, 29, 33,
Logic PNP or NPN
Voltage level 0 - 24 V DC
Voltage level, logic'0' PNP < 5 V DC
Voltage level, logic'1' PNP > 10 V DC
Voltage level, logic '0' NPN > 19 V DC
Voltage level, logic '1' NPN < 14 V DC
Maximum voltage on input 28 V DC
Input resistance, R
i
approx. 4 k
Max. pulse frequency at terminal 33 5000 Hz
Min. pulse frequency at terminal 33 20 Hz
Analog inputs:
Number of analog inputs 2
Terminal number 53, 60
Voltage mode (Terminal 53) Switch S200=OFF(U)
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Current mode (Terminal 53 and 60) Switch S200=ON(I)
Voltage level 0 -10 V
Input resistance, R
i
approx. 10 k
Max. voltage 20 V
Current level 0/4 to 20 mA (scaleable)
Input resistance, R
i
approx. 200 
Max. current 30 mA
Analog output:
Number of programmable analog outputs 1
Terminal number 42
Current range at analog output 0/4 - 20 mA
Max. load to common at analog output 500 
Max. voltage at analog output 17 V
Accuracy on analog output Max. error: 0.8 % of full scale
Resolution on analog output 8 bit
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
Control card, 24 V DC output:
Terminal number 12
Max. load (M1 and M2) 160 mA
Max. load (M3) 30 mA
Max. load (M4 and M5) 200 mA
Relay output:
Programmable relay output 1
Relay 01 Terminal number 01-03 (break), 01-02(make)
Max. terminal load (AC-1)
1)
on 01-02 (NO) (Resistive load) 250 V AC, 2 A
Max. terminal load (AC-15)
1)
on 01-02 (NO) (Inductive load @ cos0.4) 250 V AC, 0.2 A
Max. terminal load (DC-1)
1)
on 01-02 (NO) (Resistive load) 30 V DC, 2 A
Max. terminal load (DC-13)
1)
on 01-02 (NO) (Inductive load) 24 V DC, 0.1A
Max. terminal load (AC-1)
1)
on 01-03 (NC) (Resistive load) 250 V AC, 2 A
Max. terminal load (AC-15)
1)
on 01-03 (NC) (Inductive load @ cos0.4) 250 V AC, 0.2A
Max. terminal load (DC-1)
1)
on 01-03 (NC) (Resistive load) 30 V DC, 2 A
Min. terminal load on 01-03 (NC), 01-02 (NO) 24 V DC 10 mA, 24 V AC 20 mA
Environment according to EN 60664-1 overvoltage category III/pollution degree 2
1) IEC 60947 part 4 and 5
Control card, 10 V DC output:
Terminal number 50
Output voltage 10.5 V ±0.5 V
Max. load 25 mA
All inputs, outputs, circuits, DC supplies and relay contacts are galvanically isolated from the supply
voltage (PELV) and other high-voltage terminals.
Surroundings:
Enclosure IP 20
Enclosure kit available IP 21, TYPE 1
Vibration test 1.0 g
Max. relative humidity 5% - 95%(IEC 60721-3-3; Class 3K3 (non-condensing) during operation
Aggressive environment (IEC 60721-3-3), coated class 3C3
Test method according to IEC 60068-2-43 H2S (10 days)
Ambient temperature Max. 40 °C
Derating for high ambient temperature, see section on special conditions
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Minimum ambient temperature during full-scale operation 0 °C
Minimum ambient temperature at reduced performance - 10 °C
Temperature during storage/transport -25 - +65/70 °C
Maximum altitude above sea level without derating 1000 m
Maximum altitude above sea level with derating 3000 m
Derating for high altitude, see section on special conditions
Safety standards EN/IEC 61800-5-1, UL 508C
EMC standards, Emission EN 61800-3, EN 61000-6-3/4, EN 55011, IEC 61800-3
EMC standards, Immunity
EN 61800-3, EN 61000-6-1/2, EN 61000-4-2, EN 61000-4-3,
EN 61000-4-4, EN 61000-4-5, EN 61000-4-6
See section on special conditions
1.8 Special Conditions
1.8.1 Derating for Ambient Temperature
The ambient temperature measured over 24 hours should be at least 5 °C lower than the max. ambient temperature.
If the frequency converter is operated at high ambient temperature, the continuous output current should be decreased.
The frequency converter has been designed for operation at max 50 °C ambient temperature with one motor size smaller
than nominal. Continuous operation at full load at 50 °C ambient temperature will reduce the lifetime of the frequency
converter.
1.8.2 Derating for Low Air Pressure
The cooling capability of air is decreased at low air pressure.
For altitudes above 2000 m, please contact Danfoss regarding PELV.
Below 1000 m altitude no de-rating is necessary but above 1000 m the ambient temperature or the maximum output
current should be decreased.
Decrease the output by 1% per 100 m altitude above 1000 m or reduce the max. ambient temperature by 1 degree
per 200 m
1.8.3 Derating for Running at Low Speeds
When a motor is connected to at frequency converter, it is necessary to check that the cooling of the motor is adequate.
A problem may occur at low speeds in constant torque applications. Running continuously at low speeds – below half
the nominal motor speed – may require additional air cooling. Alternatively, choose a larger motor (one size up).
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1.9 Options for VLT Micro Drive
Ordering No Description
132B0100 VLT Control Panel LCP 11 w/o potentiometer
132B0101 VLT Control Panel LCP 12 with potentiometer
132B0102 Remote Mounting Kit for LCP incl. 3 m cable IP55 with LCP 11, IP21 with LCP 12
132B0103 Nema Type 1 kit for M1 frame
132B0104 Type 1 kit for M2 frame
132B0105 Type 1 kit for M3 frame
132B0106 De-coupling plate kit for M1 and M2 frames
132B0107 De-coupling plate kit for M3 frame
132B0108 IP21 for M1 frame
132B0109 IP21 for M2 frame
132B0110 IP21 for M3 frame
132B0111 DIN rail mounting kit for M1 frame
132B0120 Type 1 kit for M4 frame
132B0121 Type 1 kit for M5 frame
132B0122 De-coupling plate kit for M4 and M5 frames
Danfoss Line Filters and brake resistors are available upon request.
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