NORD Drivesystems BU0310 - Manual (Page 4)

4 BU 0310 GB
II 3D T125°C
Instructions for parameterization / Scope of application
As the marking shows, the frequency inverter and the motor are suitable for use in
zone 22 (non-conductive dust).
The marking is as follows:
For zone 2 operation of frequency and motor, cable entries must ensure at least the IP
55 type of protection. Openings which are not in use have to be sealed with dummy
plugs (minimum type of protection IP 55).
The frequency inverter ensures protection of the motor against overheating by
evaluating the PTC resistor of the motor. For this effect to be obtained, digital input 1
must be assigned the "PTC resistor" function (P420 = 13). Be sure, too, to select the
NORD motor you are using from the motor list (P200). When a motor from a different
manufacturer is used the motor parameter data (requested to be set in P201 to P208)
must be copied from the type plate of the motor. Best verify whether the settings of the
respective parameters correspond with the type plate before starting the motor.
Furthermore the frequency inverter should be parameterized so as to prevent the motor
from running at a speed greater than 3000
1
/
min
. For a four-pole motor the ´maximum
frequency´ should be set to a value less than or equal to 100 Hz (P105 ≤ 100). When
you make this setting don´t forget to take the maximum allowable output speed
of the gearbox into account!!! Also activate the "I²t motor“ control in parameter P535.
Table of the required parameter settings:
Parameter Setting value Default Description
P105
Maximum
frequency
≤ 100 Hz [50]
This value is related to a 4-pole motor.
Always select a value that will ensure
that a motor speed of 3000 rpm is not
exceeded.
P200
Motor list
No. from BU 0300
according to the
motor rating
[0]
When a NORD motor is connected,
selecting the appropriate number will
activate the default settings of the
motor used.
P201 – P208
Motor data
Data obtained
from the type plate
[***]
When the motor is from a different
manufacturer, the motor data from the
type plate must be copied to the
applicable parameters.
P420
Function dig.
input1
[13] PTC resistor
input
[13]
Digital input 1 must be parameterized
to ensure the PTC resistor function
and with it temperature control of the
motor.
P535
I²t motor
[1] activated [0]
The I²t setting 1 for over current
control of the motor is imperative.