Danfoss FC 100 Series User Manual

7.3.1 Parameter Set-Up
Group Title Function
0- Operation and Display Parameters used to program the fundamental functions of the frequency converter and the LCP
including: selection of language; selection of which variables are displayed at each position in the
display (e.g. static duct pressure or condenser water return temperature can be displayed with the
setpoint in small digits in the top row and feedback in large digits in the centre of the dispay);
enabling/disabling of the LCP keys/buttons; passwords for the LCP; upload and download of
commissioned parameters to/from the LCP and setting the built in clock.
1- Load / Motor Parameters used to configure the frequency converter for the specific application and motor includ-
ing: open or closed loop operation; type of application such as compressor, fan or centrifual pump;
motor nameplate data; auto-tuning of the drive to the motor for optimum performance; flying start
(typically used for fan applications) and motor thermal protection.
2- Brakes Parameters used to configure braking functions of the frequency converter which although not
common in many HVAC applications, can be useful on special fan applications. Parameters includ-
ing: DC braking; dymamic/resistor braking and over voltage control (which provides automatic
adjustment of the deceleration rate (auto-ramping) to avoid tripping when decelerating large
inertia fans)
3- Reference / Ramps Parameters used to program the minimum and maximum reference limits of speed (RPM/Hz) in
open loop or in actual units when operating in closed loop); digital/preset references; jog speed;
definition of the source of each reference (e.g. which analog input the reference signal is connected
to); ramp up and down times and digital potentiometer settings.
4- Limits / Warnings Parameters used to program limits and warnings of operation including: allowable motor direction;
minimum and maximum motor speeds (e.g. in pump applications it is typical to program a
minimum speed to approx 30-40% to ensure pump seals are adequately lubricated at all times,
avoid cavitation and ensure adequate head is produced at all times to create flow); torque and
current limits to protect the pump, fan or compressor driven by the motor; warnings for low/high
current, speed, reference, and feedback; missing motor phase protection; speed bypass frequencies
including semi-automatic setup of these frequencies (e.g. to avoid resonance conditions on cooling
tower and other fans).
5- Digital In / Out Parameters used to program the functions of all digital inputs, digital outputs, relay outputs, pulse
inputs and pulse outputs for terminals on the control card and all option cards.
6- Analog In / Out Parameters used to program the functions associated with all analog inputs and analog outputs for
the terminals on the control card and General Purpose I/O option (MCB 101) (note: NOT Analog I/O
option MCB 109, see parameter group 26-00) including: analog input live zero timeout function
(which for example can be used to command a cooling tower fan to operate at full speed if the
condenser water return sensor fails); scaling of the analog input signals (for example to match the
analog input to the mA and pressure range of a static duct pressure sensor); filter time constant to
filter out electrical noise on the analog signal which can sometimes occur when long cables are
installed; function and scaling of the analog outputs (for example to provide an analog output
representing motor current or kW to an analog input of a DDC controller) and to configure the
analog outputs to be controlled by the BMS via a high level interface (HLI) (e.g. to control a chilled
water valve) including ability to define a default value of these outputs in the event of the HLI
failing.
8- Communication and
Options
Parameters used for configuring and monitoring functions associated with the serial communica-
tions / high level interface to the frequency converter
9- Profibus Parameters only applicable when a Profibus option is installed.
10- CAN Fieldbus Parameters only applicable when a DeviceNet option is installed.
11- LonWorks Parameters only applicable when a Lonworks option is installed.
How to Programme the Frequ...
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HVAC Drive Operating Instructions
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Danfoss FC 100 Series Specifications

General

Brand	Danfoss
Model	FC 100 Series
Category	Media Converter
Language	English