Siemens Simatic M7-400 Manual do Utilizador descarregar pdf (Página 211)

100

101

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

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

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