5. POWER SUPPLY UNIT AND INPUT
Example) When a device of 200/220 VAC (which does not accept 240
V) is connected to CP2, the AC input specification for CP1
is also 200/220 VAC.
The total AC output from CP2 and CP3 is up to 2.5 A.
When the capacity is insufficient, see section 5.2.3.
The connector for controlling the power. The power–on and
power–off buttons are connected here.
(a) Power on/off (EON, EOF, and COM)
Turns on and off the power to the control unit.
(Power is on.) (Power is off.) (power is on.)
Withstand voltage: 50 VDC or higher (between the contacts)
Withstand current: 100 mA or higher (The minimum load is 2
mA or lower.)
(b)Alarm input (AL and OFF)
Receives an alarm signal from outside the control unit to turn off
the power to the system. Input a contact signal which is closed
when an alarm occurs.
Withstand voltage: 30 VDC or more (between the contacts)
Withstand current: 100 mA or more (The minimum load is 1
mA or less.)
(c) Alarm output (FA and FB)
Shorts FA and FB when an abnormality is found in the power
supply unit for the control unit, for example, when the fuse for
direct current output blows or when an excessive voltage or current
is detected at the direct current output. When an alarm input
(between AL and OFF) is closed, FA and FB are also shorted. This
signal is held until the power–off button is pressed or the input
power (AC input of the power supply unit) is turned off. When this
signal is output, the power to the control unit is turned off and the
power–on button is disabled.
(Contact ratings) 50 VDC or less
0.5 A or less
50 VAC or less
5 VA or less
+24 VDC power output
Connector for +24 VDC power displays (9″ CRT/PDP, 9.5″ LCD,