Siemens S7-400PLC Especificações Página 122

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Digital modules
4.9 Digital input module SM 421; DI 16 x AC 120 V (6ES7421-5EH00-0AA0)
S7-400 Automation System Module Data
122 Reference Manual, Edition 09/2009, A5E00850736-06
Specifications of SM 421; DI 16 x AC 120 V
Dimensions and weight
Dimensions W x H x D (mm) 25 x 290 x 210
Weight Approx. 650 g
Module-specific data
Number of inputs 16
Cable length
Unshielded
600 m
Shielded
1000 m
Voltages, currents, electrical potentials
Number of simultaneously controlled inputs 16
Electrical isolation
Between channels and the backplane bus
Yes
Between channels
In groups of
Yes
1
Permissible potential difference
Between Minternal and the inputs
120 VAC
Between inputs of different groups
250 VAC
Isolation test voltage 1500 VAC
Current consumption
From the backplane bus (5 V)
Max. 100 mA
Power loss of the module Typ. 3.0 W
Status, interrupts, diagnostics
Status display Green LED per channel
Interrupts None
Diagnostic functions None
Sensor selection data
Input voltage
Nominal value
120 V
For "1" signal
72 to 132 VAC
For "0" signal
0 to 20 V
Frequency band
47 to 63 Hz
Input current
With "1" signal
6 to 20 mA
With "0" signal
0 to 4 mA
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