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The voltage and the frequence are in accordance with DIN/EN 60034-1. Within the first range, voltage has a maximum deviation of +/- 5% and frequency +/- 2%; within the second range the deviation of voltage is +/- 10% and frequency +3/-5 %. Electric motors are marked according to the IE2 standard:
In order to run the electric motors at constant rated power according to DIN/EN 60034-1, the electric motors need to be powered at the constant frequency of 50 Hz, be maintained within the temperature of -20 to +40 C and not higher than 1000 m above sea level.
Electric motors with aluminium casing are built from die-cast aluminium, iron casing from cast iron. The position of the junction box can be changed with the help of the mounting feet (bolted mounting feet sizes 56-132). Unless defined differently in product specification.
The ball bearings of the electric motors are high quality (manufactured by FAG, SKF, NSK, NTN, INA). Guaranteed 40 000 hours of operation through clutch, without physical force placed on the axis. Guaranteed 20 000 hours of operation with horizontal positioning and maximum stress allowed placed on the axis.
Electric motors with aluminium casing are equipped with removable mounting feet, each of which is fastened with two screws. The screws mentioned are adjustable, which allow to change the placement of the junction box (left or right). Unless defined differently in product specification.
The IEC-721 Black burst Generator provides the user with two precision Black burst and two SMPTE Color Bar outputs. A loop-through black burst input is provided for gen-locking to an external reference or it can be used as a stand-alone generator.
The stable internal time base and its flawless output signals place it a cut above the competition at a price that makes it attractive to the most cost conscious buyer. Factory adjusted to RS-170A standards, the IEC-721 is perfect for the studio, remote locations, or production facilities where an economical yet accurate multiple outputs are needed.
The color bar output can be programmed to alternate between SMPTE color bars and black burst making the video active. The timing interval between for the active flip is adjustable between 1 and 10 units. This feature is very helpful to confirm if the feed is still live. SMPTE color bars or black can be selected for 2 or 4 outputs and can be independently timed in pairs of 2.
In addition, the IEC-721 has an eight-character display for showing the function under adjustment. Two pushbutton switches are used for \"ESC\" and \"Enter\". The front panel LED displays H and V timing numbers for audit and confirmation. A rotary encoder selects the function for precise adjustment.
An infinite Gen-lock timing range makes the IEC-721 ideal for timing the output signals into the studio facility. The four outputs of the IEC-721, color bar and black burst, are adjustable over the entire H and V infinite timing range.
The IEC-721 operates on an external +5 VDC power supply. The power supply has two options, wall mount or chassis unit of the same style as the IEC-721, model PPS-702. The PPS-702 has two +5 VDC outputs to power two IEC-721's. The IEC-721 can mount in the PRT-700 along with the PPS-702 power supply.