Commissioning
4.3 Preparing commissioning
What command and setpoint sources are you using?
The command and setpoint sources that are available depend on the frequency inverter.
Depending on whether you use a frequency inverter with or without fieldbus interface, with or
without fail-safe functions, the default command and setpoint sources set in the factory differ.
● Possible command sources [P0700]
● Possible setpoint sources [P1000]
Controlling motors via terminals
There are various methods to start, stop and reverse the direction of a motor. The various
methods can be configured using parameter P0727.
The following two-wire control variants are available with the factory setting (P0727 = 0):
● Switching on and off with one control command and reversing with the second control
● Switching on and switching off a direction of rotation with each control command.
Minimum/maximum frequency of the motor
The minimum and maximum frequency with which the motor operates or is limited
regardless of the frequency setpoint.
● Minimum frequency [P1080] - factory setting 0 Hz
● Maximum frequency [P1082] - factory setting 50 Hz
Ramp-up time and ramp-down time
The ramp-up and ramp-down time define the maximum motor acceleration when the speed
setpoint changes. The ramp-up and ramp-down time is the interval between motor standstill
and the maximum frequency, or between the maximum frequency and motor standstill.
● Ramp-up time [P1120] - factory setting 10 s
● Ramp-down time [P1121] - factory setting 10 s
50
– Operator Panel
– Fieldbus (factory setting for bus-capable and fail-safe frequency inverters)
– Local digital inputs/switches (factory setting for non-bus-capable frequency inverters)
– Motorized potentiometer
– Analog setpoint
– Fixed frequency
– Fieldbus
command.
Frequency inverter
Operating Instructions, 08.10. 2008, t.b.d.