Lorentz ECDRIVE 150 C - Page 6

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BERNT LORENTZ GmbH & Co. KG
Siebenstücken 24, 24558 Henstedt-Ulzburg, Germany,
Tel (+49) 0 4193 8806-700, Fax -708, www.lorentz.de
Troubleshooting guide for LORENTZ ECDRIVE submersible
Version: V171115
All specifications and information are given with good intent, errors are possible and products may be subject to change without notice.
Pictures may differ from actual products depending on local market requirements and regulations.
2.2.1 Check the resistance between the motor phases
• Configure your multimeter
o Choose resistance –
measurement
o Insert the measuring tips into
the provided sockets (black to
COM and red to Ω)
• The measurement is easier and safer by
using crocodile clips
• Connect the measuring clips to the
motor phases (3 different steps – L1 to
L2, L2 to L3 and L3 to L1)
Check whether the resistance between the motor phases is on the same level. The following list gives
a rough resistance value of the motor phases separated by the different motor types. The value is
depending a lot on several conditions (accuracy of the multimeter/measuring with or without
submersible cable/etc.). It is more important that the resistance is on the same level.
These given values are rough values without the submersible cable.
Product
Resistance, measured value:
L1-L2
[Ω]
L1-L2
[Ω]
L1-L2
[Ω]
ECDRIVE 150
0.4
0.4
0.4
ECDRIVE 200
0.5
0.5
0.5
ECDRIVE 600
0.5
0.5
0.5
ECDRIVE 1800
0.8
0.8
0.8
ECDRIVE 4000
0.9
0.9
0.9
Tolerance: ±0.2 Ω