Wiring the gold drum hv (high voltage), Connection diagrams – ElmoMC Gold Line Digital Servo Drives-Gold Drum HV User Manual
Page 43
Gold Drum HV Installation Guide (EtherCAT and CAN)
Installation
MAN-G-DRUMHVIG-EC (Ver. 1.202)
43
4.5. Wiring the Gold Drum HV (High Voltage)
Once the Gold Drum HV (High Voltage) is mounted, you are ready to wire the device. Proper
wiring, grounding and shielding are essential for ensuring safe, immune and optimal servo
performance of the Gold Drum HV (High Voltage).
Caution: Perform the following instructions to ensure safe and proper wiring.
•
Use twisted pair shielded cables for control, feedback and communication connections. For
best results, the cable should have an aluminum foil shield covered by copper braid, and
should contain a drain wire.
•
The drain wire is a non-insulated wire that is in contact with parts of the cable, usually the
shield. It is used to terminate the shield and as a grounding connection.
•
The impedance of the wire must be as low as possible. The size of the wire must be thicker
than actually required by the carrying current. A 24, 26 or 28 AWG wire for control and
feedback cables is satisfactory although 24 AWG is recommended.
•
Use shielded wires for motor connections as well. If the wires are long, ensure that the
capacitance between the wires is not too high: C < 30 nF is satisfactory for most
applications.
•
Keep all wires and cables as short as possible.
•
Keep the motor wires as far away as possible from the feedback, control and
communication cables.
•
Ensure that in normal operating conditions, the shielded wires and drain carry no current.
The only time these conductors carry current is under abnormal conditions, when electrical
equipment has become a potential shock or fire hazard while conducting external EMI
interferences directly to ground, in order to prevent them from affecting the drive. Failing
to meet this requirement can result in drive/controller/host failure.
•
After completing the wiring, carefully inspect all wires to ensure tightness, good solder
joints and general safety.
4.6. Connection Diagrams
There are two connection diagrams for EtherCAT and two for CAN that show the two different
ways of connecting the power supply in the Gold Drum HV (High Voltage) models:
•
400 V and 800 V S, T, or A models (the catalog number has an S, T, or A option) that feature
backup functionality and require an auxiliary 24 V backup supply. The drive will not be
operative without the external 24 VDC supply.
•
400 V model without backup functionality with a 0 or 1 option. The drive’s internal DC/DC
converter is fed from the VP+ and VN- of the internal drive’s bus line.