Digital Modules
3-52
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Technical specifications of the SM 322; DO 32 x 120 VAC/1.0 A
Dimensions and Weight
Dimensions
W x H x D
(in millimeters)
80 x 125 x 117
Weight Approx. 500 g
Data for Specific Module
Supports clocked
operation
No
Number of outputs 32
Length of cable
• Unshielded
• Shielded
max. 600 m
max. 1000 m
Voltages, Currents, Potentials
Rated load voltage L1 120/230 VAC
• Permitted frequency range 47 Hz to 63 Hz
Total current of the outputs
(per group)
• Horizontal configuration
up to 60 C
up to 40 C
max. 3 A
max. 4 A
• Vertical configuration
Up to 40C
max. 4 A
Isolation
• Between channels and
backplane bus
Yes
• Between the channels Yes
In groups of 8
Permitted potential difference
• Between M
internal
and the
outputs
250 VAC
• Between the outputs of the
different groups
250 VAC
Insulation tested with DC 4000 V
Current consumption
• From the backplane bus
• From load voltage L1
(without load)
max. 190 mA
max. 10 mA
Power dissipation of the module typ. max. 25 W
Status, Interrupts, Diagnostics
Status display Green LED per channel
Interrupts No
Diagnostic functions
• Group error display
Yes
Red LED (SF)
Data for Selecting an Actuator
Output voltage
• At signal “1”
min. L1 (–0,8 V)
Output current
• At “1” signal
Rated value 1 A
Permitted range 10 mA to 1 A
Permitted current surge
(per group)
10 A
(for 2 AC scan cycles)
• At “0” signal
Leakage current
max. 2 mA
Output delay (for resistive load)
• At “0” to “1” 1 AC scan cycle
• At “1” to “0” 1 AC scan cycle
Blocking voltage
Zero transition max. 60 V
Size of the motor starter max. size 4 to NEMA
Lamp load max. 50 W
Parallel connection of
2 outputs
• For redundant
actuation of a load
Possible (only outputs
of the same group)
• To increase
performance
Not possible
Actuation of
digital input
Possible
Switch rate
• For resistive load
• Inductive loads,
according to
IEC 947-5-1, AC 15
• For lamp load
max. 10 Hz
max. 0.5 Hz
1 Hz
Short-circuit protection of the
output
No
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