Sleep frequency, the timer is reset. Page Description of choice: is as quiet as possible. Set the required frequency. Page Setpoint 1 and Setpoint 2. Page Feedback conversion should not be used if 2-zone regulation in parameter Feedback function has been selected. Page Setpoint 1 will be added to the remote reference. Page Used in Closed loop [1] parameter PID start frequency is always applied in clockwise direction.
Value: 0. Page Page Can also occur on mains with low short circuit ratio. Page Serial Communication For Fc Protocol The master continuously sends telegrams addressed to the slaves and awaits reply telegrams from these. If Danfoss FC protocol is to be selected, set parameter The response time of the slaves is max.
Page 15 14 13 12 Reply However, only the lowbyte is used. See example on No reply the following page. Page The telegram length is stated in the 2nd byte of the telegram, called LGE.
Page Present Output Frequency Par. Page Serial Communication Parameter Address cannot be chosen via serial communication, but must be set via the LCP control unit. Page '0'. Page Preset ref. Preset ref.
Page Description of choice: parameter The warning is in hex code. Set the required time. The resulting retransmissions of messages will slow communications on the network. Page Service Functions Gives the number of overtemperature errors on the heat-sink of the frequency converter. Page The fault log is only reset after manual initialization.
Page This means a date and time are shown. Page Parameter Application option Nameplate: or- dering no. Parameter Nameplate: Communication option type: This gives the type of communication options fitted with theT frequency converter. This is programmed in parameter Page ON time was passed some time ago [0].
Alternatively choose to wait for the next forth com- ing ON action before executing [1]. When the RTC is enabled, it must be defined how this should be done. Page The cause may be noise on the mains, motor or control cables, leading to a stop of the control card microproc- essor. Check for EMC-correct connection of these cables. Page List Of Warnings And Alarms After a reset, the frequency converter will be Via a digital input ready to start operation again.
Via serial communication In addition, an au- tomatic reset may be selected in parameter Reset function. Page Reference low REF. The corresponding mains voltage is the intermediate circuit voltage divided by 1, Page Stop and trip, the frequency converter will first give off an alarm, then ramp down and finally trip while giv- ing off an alarm. Parameter Bus time interval could possibly be in- creased. Contact your Danfoss supplier. Page The motor used is probably too small for AMA to be carried out.
The setting in parameter Motor power, may not match the motor. Page Aggressive Environments Par. External reference x Par. The table states the waiting time between cut-ins. Page Derating For Air Pressure A higher switching frequency to be set in parameter , Switching frequency leads to higher losses in the VLT , V electronics of the frequency converter.
See specifications under General technical data. For further details, see the operating instructions MG. Page Emc Immunity Simulation of the effect of radio transmission equipment connected to supply cables.
VDE class W2 test pulse: Mains transients Simulation of high-energy transients brought about by main fuse breakage, switching of power factor-correction capacitors, etc. Used in serial communication. The smallest value which the reference signal may VT characteristics: have. Set in parameter Minimum reference, Variable torque characteristics, used for pumps and fans.
DC brake cut-in frequency 0. Page Conversion factor 0. Page Unsigned 8 setups. Unsigned 16 Unsigned 32 Conversion index: Text string This number refers to a conversion figure to be used when writing or reading by means of a frequency con- verter.
Page FLN Bus time interval 60 sec. Print page 1 Print document pages. Rename the bookmark. Delete bookmark? Cancel Delete. Delete from my manuals? Sign In OR. Don't have an account? Sign up! Restore password. Upload manual. Upload from disk. VLT Network Strategies. Strategy One Strategy Two Strategy Three Strategy Four Previous Page. Next Page. Page 2 Electrical Control Terminals Page 3: Safety is set for rated motor ment from the AC line and is not to be used nameplate current.
Page 4: Introduction 96 devices to be used provided in each section. The Danfoss VLT is a programmable frequency The VLT frequency converter is delivered for installation and setup with the required applica-tion parameters already programmed at the factory. Specific motor nameplate data may have to be entered at the time of setup.
Flashing underline indicates digit selected to Press key once to move cursor to tens change. The feedback demand is reached. Page 12 NO to make the drive run. Point 61 can have units. It can have a value between 5 and Page Hardware Setup A terminator dip switch on the main control board switch positions shown in Figure 3 demonstrate the of the VLT is used to configure the drives on factory setting. Table 4 lists the switch functions and the FLN bus.
It is used for serial communication and settings required for FLN operation. Many of these control connections see Figure 4 already terminals have multiple functions that are connected at equipment installation. Page 21 2 Trip lock: Requires AC power cycled on and off and a reset. Alarms that also have a corresponding warning cannot be reset until warning has been removed, i. Points refer to warnings.
CE labelling PC software and serial communication Unpacking and ordering a VL T frequency converter T ype code ordering num ber string Ordering form Mains supply L1, L2, L T echnical data, mains supply 3 x V T echnical data, mains su pply 3 x V Mechanical dimensions Mechanical installatio n General information about el ectrical installation High voltage war ning Extra protection with regar d to indirect contact
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