2. Validation & Adjustment of Power Supply Voltage
2.1 Validation of Input Voltage
4-5
2. Validation & Adjustment of Power Supply Voltage
2.1 Validation of Input Voltage
Verify if the input voltage meets the specification below.
(Check the voltage between the CNACIN pin 1 and pin 3 of the main unit connector.)
AC 220V ±10 % 50/60Hz ±1 % 1Φ
2.2 Fuse
There exist three fuses in the SENTROL2 main unit.
F1, F2 Fuses for AC220V power supply input (DAITO HP50 AC250V 5A)
F3 Fuse for +24V power supply (DAITO MP20 2A)
Check the condition of the above fuses and replace any that is short.
Be sure to replace an equivalent fuse.
How to determine whether a fuse is short
Space is seen. A white mark is seen.
Normal Short
2.3 Validation of DC Voltage
The followings show how to measure the DC power supply voltage in the SENTROL2 main
unit:
Designation
of voltage
output
Rated
voltage
Allowable
voltage range
Measuring location
P5V +5V +5.0~+5.1V
The P5V check pin of the DIO3
board and screws of the main
unit
P12V +12V +12.0~+12.5V
The P12V check pin of the DIO3
board and screws of the main
unit
N12V -12V -12.0~-12.5V
The N12V check pin of the DIO3
board and screws of the main
unit
P24V +24V +23.5~+25.5V
The No. 15 pin of the CNA1
connector on the EPS3 board
and screws of the main unit
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