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3.2.1. Status LEDs
There are two status LEDs next to the X1 Power connector.
Table 9: Status LEDs
Designation
Colour
PWR
Green
S1
Blue
3.2.2. Power Button
The Power Button is located below the power connector X1 next to the PWR status LED. The function of the Power
Button is described in chapter 3.1.8.
3.2.3.
Power supply Connector X1
Table 10: Power supply Connector X1
Pin
Signal
1
FE
2
0V
3
24V
Cable (acc. to chapter 2.2/ EMC): max. 3 m, unshielded
Connector type: Phoenix MSTBA 2,5/3-G – 1757488
Mating connector: Phoenix FKCN 2.5/ 3-ST-5.08-– 1873061 (included in delivery)
Associated permissible cable cross-sections:
rigid conductor cross-section: 0,2 mm² ... 1,5 mm²
Flexible conductor cross-section: 0,2 mm² ... 2,5 mm²
Conductor cross section AWG / kcmil: 24 ... 16
Conductor cross-section flexible with wire end ferrule: 0,25 mm² ... 1,5 mm²
Stripping length: 10 mm
The power cable must be rated for a temperature of +75° C or higher.
The cable can become damaged over time or potentially harmful plasticizers could be
released in the surrounding air if cables with a lower temperature rating are being used.
In Europe, the flatter type Phoenix FKCN 2.5/ 3-ST - 1732755 can also be used as a mating
connector for X1. However, this type is not permitted in the USA and Canada, since only the
Phoenix FKCN 2.5/ 3-ST-5.08 - 1873061 has the UL registration required for this region
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Meaning
Lights up permanently if 24V supply is available and the device is not in state SoC G3
(see chapter 3.1.8)
Connected to GPIO of the processor. Can be controlled by user software. In delivery
configuration it indicates an active system (not in state G2/S6 or SoC G3).
Comment
Functional earth
Power supply 0 Volt DC
Power supply +24 VDC ±20%
Control Unit CUmini 5x-2x0x - Rev. 1.A
// 21
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