102
• VACON®
apfiff09 marine
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
P2.1.8
Motor Nominal Power
ID116
“Motor Nom Power”
Find this value on the rating plate of the motor.
Drive Synch Operation
Motor Nominal power from the motor name plate / Number of drives in parallel using
VACON
®
Drive Synch.
P2.1.9
Magnetizing current
ID612
“MagnCurrent”
Set here the motor magnetizing current (no-load current).
Can be measured by running motor without load at 2/3 of nominal speed.
When the value is zero, the magnetization current is calculated from motor nominal
parameters:
𝑀𝑜𝑡𝑜𝑟 𝑀𝑎𝑔𝑛𝑒𝑡𝑖𝑧𝑎𝑡𝑖𝑜𝑛 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 =
5 ∗ 𝑆𝑖𝑛 𝜑 − 1
5 − 𝑆𝑖𝑛 𝜑
∗ 𝑀𝑜𝑡𝑜𝑟 𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛𝑡
𝑀𝑜𝑡𝑜𝑟 𝑀𝑎𝑔𝑛𝑒𝑡𝑖𝑧𝑎𝑡𝑖𝑜𝑛 𝐶𝑢𝑟𝑟𝑒𝑛𝑡 =
5 ∗ √1 − (𝐶𝑜𝑠 𝜑)
2
− 1
5 − √1 − (𝐶𝑜𝑠 𝜑)
2
∗ 𝑀𝑜𝑡𝑜𝑟 𝑁𝑜𝑚𝑖𝑛𝑎𝑙 𝐶𝑢𝑟𝑟𝑒𝑛
[𝐹𝑊]𝑅𝑜𝑡𝑜𝑟𝐹𝑙𝑢𝑥 = (
𝑓(𝑀𝑜𝑡𝑜𝑟𝑁𝑜𝑚𝐹𝑟𝑒𝑞
𝑓(𝑂𝑢𝑡)
)
2
, 𝑤ℎ𝑒𝑛 𝑓(𝑂𝑢𝑡) > 𝑓(𝑀𝑜𝑡𝑜𝑟𝑁𝑜𝑚𝐹𝑟𝑒𝑞)
If given before identification run, this is used as reference for U/f tuning when making
identification without rotating the motor.
DriveSynch Operation
Motor Nominal magnetization current / Number of drives in parallel using VACON
®
Drive
Synch.
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