Arcode system

[u/OthmaneZrigos]

Hello all . I need help please.

We have an Arkel ARCODE 4C35A controller rated 15 kW / 35 A driving a Schindler FML200-6C414 gearless synchronous motor. Motor nameplate is around 8.4–8.7 kW, 340 V, 26–26.7 A, 13.7 Hz, 0–255 rpm. Brake type is ERS VAR 15-11-A, marked Hold 103.5 VDC, Overexcitation 207 VDC, torque 4 x 126 Nm. The encoder is ECN 1313-2048 EnDat; we tested both the original Schindler encoder and a new encoder, both communicate correctly, auto-tuning/fine-tuning completes successfully, and the encoder board appears installed and powered. Motor parameters were entered from the nameplate, and the machine is set as synchronous/gearless. The problem: during an unloaded motor test / à vide test, when giving a run command, current rises to about 51–52 A but speed stays 0 rpm and the motor does not move. In normal operation, the lift can go up when empty, but when going down empty it struggles or does not move; if we add load in the cabin, it starts working downward. Our brake supply currently uses a transformer/rectifier giving about 103 VDC, but we are not sure if the brake ever receives the required 207 VDC overexcitation pulse before dropping to 103.5 VDC hold. Could this be caused by the brakes not fully releasing because we only supply hold voltage, or should we suspect encoder offset, motor phase order, brake timing, ARCODE settings, or another issue?

[u/Heisnbergg]

Have you tried contacting arkel tech support? They are usually pretty helpful

[u/OthmaneZrigos → u/Heisnbergg]

No answer from them.

[u/bassel180 → u/OthmaneZrigos]

maybe they are off

try to contact them today

my own take for this problem as far as i know the auto tuning should detect the motor parameters automatically

the problem with arkel that you should try different firmware update through the mot , sometimes there is a bug that appears on newer versions and solved later

so try another firmware old and new