Siemens Simatic S7-300 - Page 173

Digital Modules
3-89
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Technical specifications of the SM 322; DO 8 x 120/230 VAC/2 A ISOL
Dimensions and Weight
Dimensions W x H x D 40 x 125 x 117
Weight Approx. 275 g
Data for Specific Module
Supports clocked
operation
No
Number of outputs 8
Length of cable
• Unshielded
• Shielded
max. 600 m
max. 1000 m
Voltages, Currents, Potentials
Rated load voltage L1 120/230 VAC
Total current of the outputs
(module)
• Horizontal configuration
Up to 40 °C
Up to 60 °C
max. 8 A
max. 4 A
• Vertical configuration
Up to 40 °C
max. 4 A
Isolation
• Between channels and
backplane bus
Yes
• Between channels
In groups of
Yes
1
Permitted potential difference
• Between M
internal
and the
outputs
230 VAC
• Between outputs 500 VAC
Insulation tested with
• Between M
internal
and the
outputs
1500 VAC
• Between the outputs of the
different groups
2000 VAC
Current consumption
• From the backplane bus
• From load voltage L1
(without load)
max. 100 mA
max. 2 mA
Power dissipation of the module typ. 8.6 W
Status, Interrupts, Diagnostics
Status display Green LED per channel
Interrupts
• Diagnostic interrupt Parameters can be
assigned
Diagnostic functions
• Group error display Red LED (SF)
Data for Selecting an Actuator
Output voltage
• At signal “1” min. L1 (–8.5 V)
Output current
• At signal “1”
Rated value
Permitted range for 0 °C to
40 °C
2 A
10 mA to 2 A
Permitted range for
40 °C to 60 °C
10 mA to 1 A
Permitted surge current
(per group)
max. 20 A
(with 2 half-waves)
• For “0” signal
(leakage current)
max. 2 mA
Zero cross inhibit voltage max. 60 V
Size of the motor starter max. size 5 to NEMA
Lamp load max. 50 W
Connecting two outputs in
parallel
• For redundant triggering of
a load
Possible
• To increase performance Not possible
Triggering a digital input Possible
Switch rate
• For resistive load max. 10 Hz
• Inductive loads, according
to IEC 947-5-1, AC 15
max. 0.5 Hz
• For lamp load max. 1 Hz
Short-circuit protection of output Yes,
3.15 A /
250 V fuse, fast-acting