18
MicroLogix™ 1500 Programmable Controller Base Units
Publication 1764-IN001B-EN-P
Table 10 Input Specifications
Description
1764-24AWA
1764-24BWA and 1764-28BXB
Inputs 0 thru 7
Inputs 8 and Higher
On State Voltage
Range
79 to 132V ac
14 to 30.0 V dc at 30°C
(86°F)
14 to 26.4 V dc at 55°C
(131°F)
10 to 30.0 V dc at 30°C
(86°F)
10 to 26.4 V dc at 55°C
(131°F)
Off State Voltage
Range
0 to 20V ac
0 to 5V dc
Operating Frequency
47 Hz to 63 Hz
0 Hz to 20 KHz
(1764-24BWA)
0 Hz to 1 KHz
(1)
(1764-24BWA)
(1) Scan-time dependant.
On State Current:
• minimum
• nominal
• maximum
• 5.0 mA at 79V ac
• 12.0 mA at 120V ac
• 16.0 mA at 132V ac
• 2.5 mA at 14V dc
• 7.3 mA at 24V dc
• 12.0 mA at 30V dc
• 2.0 mA at 10V dc
• 8.9 mA at 24V dc
• 12.0 mA at 30V dc
Off State Leakage
Current
2.5 mA minimum
1.5 mA minimum
Nominal Impedance
12k ohms at 50 Hz
10k ohms at 60 Hz
3.3k ohms
2.7k ohms
Inrush Current (max.)
at 120V ac
250 mA
Not Applicable
Not Applicable
Table 11 Output Specifications
Specification
1764-24AWA/BWA
1764-28BXB
Current per Common
8A
8A
Current per Controller
at 150V Maximum
24A
18A
at 240V Maximum
20A
18A
Table 12 Relay Contact Rating Table 1764-24AWA, -24BWA, -28BXB
Maximum Volts
Amperes
Amperes
Continuous
Voltamperes
Make
Break
Make
Break
240V ac
7.5A
0.75A
2.5A
1800 VA
180 VA
120V ac
15A
1.5A
125V dc
0.22A
(1)
(1) For dc voltage applications, the make/break ampere rating for relay contacts can be determined by dividing
28 VA by the applied dc voltage. For example, 28 VA/48V dc = 0.58A. For dc voltage applications less than
48V, the make/break ratings for relay contacts cannot exceed 2A
1.0A
28 VA
24V dc
1.2A
(1)
2.0A
28 VA
Summary of Contents for 1764-24AWA
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