Rockwell Automation Allen-Bradley 1606-XLB90E, Справочное руководство

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Rockwell Automation Publication 1606-RM121A-EN-P - October 2020 9
Output
The output provides a SELV/PELV rated voltage, which is galvanically isolated
from the input voltage.
The output is designed to supply any kind of load, including unlimited
inductive loads. Capacitive loads should not be larger than 5500 μF with 3.8 A
or 7000 μF with 1.9 A additional current load.
Attributes Values Notes
Output voltage Nom DC 24V —
Adjustment range
Min 24…28V Guaranteed value
Max 29.0V
This is the max output voltage that can occur at the clockwise end position of the
potentiometer due to tolerances. It is not guaranteed that this value can be achieved.
Factory settings Typ 24.1V ±0.2%, at full load and cold unit
Line regulation Max 10 mV Between 85…300V AC
Load regulation Max 100 mV Between 0…3.8 A, static value, see Figure 9
Ripple and noise voltage Max 100 mVpp Bandwidth 20 Hz…20 MHz, 50 Ω
Output current
Nom 3.8 A At 24V and an ambient temperature below 60 °C (140 °F)
Nom 3.2 A At 24V and 70 °C (158 °F) ambient temperature
Nom 2.8 A At 28V and an ambient temperature below 60 °C (140 °F)
Nom 2.4 A At 28V and 70 °C (158 °F) ambient temperature
Overload protection — Included
Electronically protected against no-load, overload, and short circuit. If there is a protection
event, audible noise may occur.
Overload behavior
— Continuous current Output voltage > 14V DC, see Figure 9
—
Intermittent current
(1)
Output voltage < 14V DC, see Figure 9
Overload/ short-circuit current
Max 6.7 A Continuous current, see Figure 9
Typ 8.6 A
Intermitted current peak value for 20 ms typ.
Load impedance 150 mΩ, see
Figure 10 .
Discharge current of output capacitors is not included.
Max 3.2 A Intermitted current average value (R.M.S.) Load impedance 150 mΩ, see Figure 10 .
Output capacitance Typ 1600 µF Included inside the power supply
Back-feeding loads Max 35V
The unit is resistant and does not show malfunctioning when a load feeds back voltage to
the power supply. It does not matter whether the power supply is on or off. The absorbing
energy can be calculated according to the built-in large sized output capacitor.
(1) At heavy overloads (when output voltage falls below 14V), the power supply delivers continuous output current for 20 ms. After this, the output is switched off for
approximately 160 ms before a new start attempt is automatically performed. This cycle is repeated as long as the overload exists. If the overload has been
cleared, the device operates normally. See
Figure 10 .
Figure 9 - Output Voltage Versus Output Current, Typ Figure 10 - Intermittent Current at Short Circuit, Typ
Output Voltage
0
0 1 2
4
8
12
28V
16
20
24
10 A 4 5 6 7 8 9
Adjustment range
Output Current
A
B
A: continuous current
B: intermitted current
3
Output
Current
0
8.6 A
160 ms 160 ms
160 ms 20
ms
t
Short -circuit
Normal
operation
Normal
operation
20
ms
20
ms