User`s manual

BD2-1220/1221 User’s Manual
12
5. POWER SUPPLY
5.1 Specifications
Vdd: 5 VDC ±5%, approx. 200 mA
Vp: 24 VDC ±10%, approx. 0.7 A on average (approx. 6 A peak)
The data above is at 25°c and normal humidity.
AC is at 12.5% print area and 24 VDC. It varies with printing condition, operating
environment, operating condition, and some other factors.
5.2 Precautions
(1) Design the product to supply power to Vdd before Vp (within 100 ms) when power is supplied to this
control board.
(2) Design the product to turn off the power for Vdd after Vp when power is turned off.
(3) Make sure to turn off the power in case of connecting / disconnecting connectors.
(4) Make sure to use Vdd and Vp following their specifications.
(5) Make sure to use this control board connecting all of terminals between Vp and P-GND.
(6) The Vdd power supply should have a capacity to meet the current 0.2A or more.
(7) The Vp power supply should have a capacity enough to meet the peak current requirement.
CAUTION:
• A power supply not complying with the specified ratings may adversely affect print results.
• A power supply with insufficient peak current capacity may cause poor print quality or a low-voltage error.
• In case of emergency, always place the control board so that it is easily disconnected from the power source.
• The power supply should preferably be equipped with overvoltage protection, overcurrent protection, or other
protection features.
• The control board requires a dual supply voltage. Exercise care to avoid cross power connection as it may not only
damage the control board electronics but adversely affect the user or peripheral devices.
• If you feel odd smell during operation, immediately shut off the power to the device.
• The control board uses the same interface cable as that used with the BD2-2880. Care should be exercised as the
two boards require different supply voltages.