6 How to Programme
6.1 Basic Programming
6.1.1 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
•
Passwords for the LCP
•
Upload and download of commissioned parameters to/from the LCP
•
Setting the built-in clock
1** Load/Motor Parameters used to configure the frequency converter for the specific application and motor
including:
•
Open or closed loop operation
•
Type of application such as compressor, fan or centrifugal pump
•
Motor nameplate data
•
Auto-tuning of the frequency converter to the motor for optimum performance
•
Flying start (typically used for fan applications)
•
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
including:
•
DC braking
•
Dymamic/resistor braking
•
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
•
digital potentiometer settings
How to Programme VLT HVAC Drive FC 102 Operating Instructions
80 MG11F402 - Rev. 2013-12-16
66
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