Digital Modules

4-67

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications of the SM 422; DO 16 20-125 VDC/1.5 A
Dimensions and Weight
Dimensions W H D
(in millimeters) 25 290 210
Weight Approx. 800 g
Data for Specific Module
Number of outputs 16
Length of cable
Unshielded
Shielded
Max. 600 m
Max. 1000 m
Voltages, Currents, Potentials
Rated load voltage L1
Reverse polarity protection
20 VDC to 138 VDC
Yes, with fuse
Total current of the outputs 1)
Up to 40 C
Up to 60 C
With fan subassembly
Max. 16 A 21 A
Max. 8 A 14 A
Isolation
Between channels and
backplane bus Yes
Between the channels
In groups of
Yes
8
Permitted potential difference
Between the outputs of the
different groups 250 VAC
Insulation tested with 1500 VAC
Current consumption
From the backplane bus
From load voltage L +
(without load)
Max. 700 mA
Max. 2 mA
Power dissipation of the
module Typ. 10 W
Status, Interrupts, Diagnostics
Status display Green LED per
channel
Interrupts
Diagnostic Interrupt Parameters can be
assigned
Diagnostic functions Parameters can be
assigned
Group error display
For internal fault Red LED (INTF)
For external fault Red LED (EXTF)
Diagnostic information
readable Yes
Substitute value can be applied Yes, programmable
Data for Selecting an Actuator
Output voltage
At signal “1” Min. L+ (–1,0 V)
Output current
At signal “1”
Rated value 1.5 A
Permitted range 10 mA to 1.5 A
Permitted surge current Max. 3 A
(for 10 ms)
At signal “0” (leakage
current) Max. 0.5 mA
Output delay (for resistive load)
From “ 0” to “1” Max. 2 ms
At “1” to “0” Max. 13 ms
Parallel connection of 2
outputs
For redundant triggering of
a load Possible (only outputs
of the same group)
To increase performance Possible (only outputs
of the same group)
Triggering a digital input Possible
Switch rate
For resistive load Max. 10 Hz
For inductive load
to IEC 947-5-1, DC 13 Max. 0.5 Hz
Short-circuit protection
of output Electronically
protected2)
Threshold on Typ. 04 A to 5 A
Replacement fuses Fuse, 8 A/250 V, quick
blow
1) To achieve maximum performance capability,
distribute the high-current load between the two
groups.
2) To reset a deactivated output,
first set the output signal to 0 and then to 1.
If output signal 1 is written to a deactivated
output and the short circuit remains, additional
interrupts are generated (provided the diagnostic
interrupt parameter was set).