Siemens simatic c7-621, Руководство по установке оборудования

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6-6
C7-621 / C7-621 AS-i Control Systems
C79000-G7076-C621-01
The following table shows the technical data of the digital outputs of the C7
CPU.
Module-Specific Data
Number of outputs 16
Cable length
S
Unshielded max. 600 m
Voltages, Currents, Potential
Rated load voltage L+
S
Reverse polarity protection
24 V DC, 0.5 A
no
Total current of the outputs
(per group:
0.0 to 0.7 or
1.0 to 1.7)
S
Up to 20
°
C
S
Up to 45
°
C
max. 4 A
max. 2 A
Floating no
Status, Interrupts, Diagnostics
Interrupts no
Diagnostic functions no
Data for Selecting an Actuator
Output voltage
S
At signal “1” min. L+ (- 0.8 V)
Output current
S
For signal “1”
Rated value
Permitted range
S
For signal “0”
(residual current)
0.5 A
5 mA to 0.6 A
max. 0.5 mA
Load resistance range 48
W
to 4 k
W
Lamp load max. 5 W
Parallel connection of 2
outputs
S
For redundant activation of
a load
S
For increased power
Possible, only outputs
of the same group
Not possible
Activation of a digital input Possible
Switching frequency
S
With ohmic load
S
With inductive load to IEC
947-5-1, DC 13
S
With lamp load
max. 100 Hz
max. 0.5 Hz
max. 100 Hz
Limitation (internal) of the
inductive cut-off voltage Typically L+ (- 48 V)
Short circuit protection of the
output
S
Switching threshold
Yes, clocked
electronically
Typically 1 A
Digital Outputs
C7-621 Digital I/Os