Hardware and Connectivity 49
Powering up your IOLAN
Negative (-) wire to Circuit 2, terminal marked -
Earthing Wire:
Ground wire to terminal marked with circular earthing symbol.
Screws:
Tighten terminal connector block screws to 4.5 lbs-inches (0.51Nm) torque.
3. Switch On the power supplies.
4. Switch On the IOLAN. (The power LEDS 1 and 2 will indicate the status of the power source at
the respective input. If both the primary and secondary power source are available, both LED 1
and LED 2 will be luminated indicated power detected from each input.)
Disconnecting 48V Power Supplies from the IOLAN
To disconnect the power supply(s) from the IOLAN, do the following:
1. Switch off the IOLAN.
2. Switch off the power source(s).
3. Disconnect all DC power input cables from the IOLAN terminal connector block.
4. Remove any attached devices to the serial or Ethernet port(s).
Your IOLAN is ready to be moved.
Electric Utility Models
To power up the IOLAN, Electric Utility models, perform the following steps:
1. Ensure that the power supply side of the connection is been powered down before
attempting to connect the wires on the IOLAN side.
2. Connect the power as outlined in the “wiring” section below which matches your model.
3. Enable power to unit. Unit should now power up.Selecting Install Locations for LDC Models
Wiring
Safety warnings for ALL Electric Utility models
Safety warnings for HV and DHV models.
All equipment must be installed according to the applicable country wiring codes.
Grounding of HV and DHV models
Note:
When connecting dual power supply sources, the IOLAN supports a common
positive (+) circuit arrangement ONLY.
Note:
The Electric Utility series of IOLAN units do not have a power switch, and an
appropriately rated circuit breaker must be installed externally to the unit. If two power
sources are used, each source must have a circuit breaker. As a safety precaution you
should not rely upon the unit's front panel LEDs as a power indicator.
Note:
WARNING
This unit should be installed in a restricted access location where access can only be
gained by service personnel or users who have been instructed about the reasons for the
restrictions applied to the location and about any precautions that shall be taken; and
access is through the use of a tool or lock and key, or other means of security, and is
controlled by the authority responsible for the location.
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