REXROTH EcoDrive Cs - Kinds of Connection; Single-Phase Connection

Rexroth EcoDrive Cs Drives Mains and Supply Voltage Connection 6-3
DOK-ECODR3-DKC**.3-CS*-PR02-EN-P
6.2 Kinds of Connection
• Three-phase connection at 3 x 240 V
• Single-phase connection at 1 x 240 V
Note: When operating the drive controllers on mains with 3 x 400 V,
it is necessary to use transformers.
Note: DKC**.3-018 drive controllers are designed for a three-phase
mains connection. Single-phase operation considerably
reduces the service life of the drive controllers and causes
derating (see chapter Derating on page 4-12).
Single-Phase Connection
CAUTION
Danger of destroying the drive controller!
⇒ Do not connect the drive controller directly to mains
voltages higher than 240 V! In the case of higher
mains voltages, the connection must be realized via
a transformer.
1 x AC min. 200 V -15% (  170 V) ... max. 240 V +10% (  264 V)
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L1*
L3*
L1
L2
L3
L1C
L2C
T K1
L1*, L3*: mains
T: autotransformer (only necessary when mains input voltage is higher
than 240 V)
K1: magnetic contactor
L1, L3: mains terminal connectors; twisted wires
L1C, L2C: control voltage terminal connectors; twisted wires
Fig. 6-1: Single-phase mains connection
Note: If a neutral N is present in the control cabinet, you possibly do
not need a transformer.
Mains Voltage Range
Connection to Drive Controller
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