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GE Energy
66
994-0089–1.00–2, General
External Power Requirements
Before connecting an external power source to the D400, ensure that the following
external power requirements are met:
• An IEC 61010 qualified primary disconnect device and over current protection not
exceeding 15 A must be externally provided in the AC/DC mains supply system.
• All current carrying conductors must be switched, including neutral (for AC) and
negative (for DC).
• Primary disconnect device must be rated for the proper voltages (AC and/or DC), as
well as inrush currents for the power supplies. See section “5.1 Power Supply
Options” for peak inrush current.
• Protective earth conductor must be connected to the provided protective earth
terminal before any mains power conductors.
• The primary disconnect device shall be in close proximity to the D400 equipment and
within easy reach of the operator.
• The primary disconnect device shall be marked as the disconnecting device for the
D400 equipment.
» To connect the power source to the D400:
1. Remove the terminal block TB1 protective plastic cover.
2. Connect power source as follows:
If your power supply is… then…
AC
Connect the AC line connection to the L connection
point(s) and the AC neutral connection to the N
connection point(s) on terminal block TB1
DC Connect the DC power supply, observing the correct
polarity, to the +VDC and -VDC connection point(s) on
terminal block TB1
For proper connection, the recommended tool torque settings for power terminal
screws are 10.8 in-lb [1.22 Nm]
See also wiring diagrams below for different power configurations.