Siemens Simatic M7-400 - Page 211

Digital Modules
4-89
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications of the SM 422; DO 16 20-120 VAC/2 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 L+ 20 to 132 VAC
• Permitted frequency range 47 Hz to 63 Hz
Total current of the outputs
Up to 40 C
Up to 60 C
With fan subassembly
Max. 16 A 24 A
Max. 7 A 16 A
Isolation
• Between channels and
backplane bus
Yes
• Between the channels
In groups of
Yes
1
Permitted potential difference
• Between M
internal
and the
outputs
120 VAC
• Between the outputs of the
different groups
250 VAC
Insulation tested with 1500 VDC
Current consumption
• From the backplane bus
• From load voltage L +
(without load)
Max. 600 mA
Max. 0 mA
Power dissipation of the
module
Typ. 20 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
Possible
Substitute value can be applied Yes, programmable
Data for Selecting an Actuator
Output voltage
• At signal “1” L1 (–1.5 Vrms)
Output current
• At signal “1”
Rated value
Permitted range
2 A
100 mA to 2 A
Permitted surge current
(per group)
Max. 20 A/2 cycles
• At signal “0” (leakage
current)
Max. 2.5 mA at 30 V
Max. 4.5 mA at 132 V
Output delay (for resistive load)
• From “ 0” to “1” 1 ms
• At “1” to “0” 1 AC cycle
Zero cross inhibit voltage Non-zero cross outputs
Size of the motor starter Max. size 5 to NEMA
Lamp load Max. 50 W
Parallel connection of 2
outputs
• For redundant triggering of
a load
Possible (only outputs
of the same group)
• To increase performance Not possible
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
• For lamp load 1 Hz
Short-circuit protection of the
output
• Min. current required for
fuse to blow
Fuse 8A/125 V 2AG
(per output)
Min. 40 A
• Max. response time Typ. 33 ms
Replacement fuses
• Littelfuse
Fuse, 8 A, quick-acting
225.008