SELECT AC POWER (115/230 VAC)
The AC power to the unit must be selected for either 115 VAC or 230 VAC.
The selector switch is located through an access slot on the side of the case (See
the Installation Figure on the previous page, or the label on the case). The unit is
shipped from the factory with the switch in the 230 VAC position.
Caution: Damage to the unit may occur if the AC selector switch is set incorrectly.
EMC Compliance Installation
This unit complies with the Electromagnetic Compatibility (EMC) standards
listed in the specifications. Compliance to the EMC standards was demonstrated
by means of a test set-up using the following installation methods:
1. Unit mounted in a metal panel connected to earth ground (protective earth).
2. Shielded (screened) cables for Signal and Control inputs with shield drain wire
connected to earth ground at the mounting panel only.
Belden #8451 2 conductor, #22 AWG twisted pair with foil shield and drain wire
Belden #8771 3 conductor, #22 AWG with foil shield and drain wire
Alpha #2404 4 conductor, #22 AWG with foil shield and drain wire
3. Metal bezel of unit connected to mounting panel with 9 inch (23 cm) ground
lead from rear bezel screw. Test: Immunity to ESD per EN61000-4-2.
4. Shaffner FN610 EMI Filter placed on DC mains cable when using optional DC
power. Test: Electrical Fast transients (burst) (EFT) EN 61000-4-4.
5. Shaffner FN610 EMI Filter placed on DC mains cable when using optional DC
power supply. Test: RF Conducted Immunity per ENV 50141.
Shield Termination
EMC compliance installation testing had the drain wire for the shielded cable
terminated as shown. The drain wire was less than 0.5" (12.7 mm) long.
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