Siemens Simatic M7-400 - Page 189

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
protected
2)
• 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).