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Siemens Building Technologies SED2 variable speed drives CM1U5192en
HVAC Products Electrical installation 01.2002
4.1.3 Operation with a residual current device (RCD)
M6
T30
Torx screwdriver
5192J17en
If a residual current device (also referred to as a GLCI or RCCB) is connected, the VSD
operates without unwanted interruptions under the following conditions:
þ An RCD type B must be used.
þ The RCD must have a threshold current of 300 mA.
þ The neutral conductor in the system must be grounded.
þ Each RCD supplies only one VSD and no other consumers.
þ The output cables must not exceed 50 m in length (shielded) or 100 m
(unshielded).
Disconnecting the Y
capacitor in SED2 drives,
framesizeF
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