Материал: m012900e

142 • I/O modules

Digital Outputs 750-509

Technical description

The power supply for the solid state relay module is connected by a seriesconnected supply module for the respective operating voltage of 230 V. Power connections are made automatically from module to module via the internal P.J.C.s when snapped onto the DIN rail.

The power supply of the control side is not made via the power jumper contacts but directly from the electronics. The respective output contacts of the switching element are therefore always positioned at the field side. One termination point of these contacts must be directly connected to the power supply through a power feed module.

For the digital outputs four-conductor devices (V+; 0V; signal; ground) are standard. All digital outputs are short-circuit protected.

Attention

In case of overloads a supply module with fuse (750-609) must be connected on the line side to protect the output modules.

The output module can operate with all buscouplers of the

WAGO-I/O-SYSTEM.

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I/O modules • 143

Digital Outputs 750-509

Technical Data:

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144 • I/O modules

Digital Outputs 750-511

4.3.1.1.6 2 Channel Pulsewidth Module

I/O modules and variations

This description is for hard and software version X X X X 2 B 0 2- - - - .

The part number is displayed on the right side of the module.

The initial pre-programmed base frequency is for 250 Hz. The resolution is 10 Bits and the pulsewidth is modulated.

The following description is preliminary and is applicable to the factory configuration.

The pulsewidth output module 750-511 produces a binary modulated signal of 24 V.

The connection of the consuming device should be made between the output and 0 V (common) contacts of the module. The distribution of the 24 V DC is made via the power jumper contacts.

If galvanic isolation is desired, a new power feed via a 750-602 is required.

The PWM module can operate with all buscouplers of the

WAGO-I/O-SYSTEM (except for the economy type).

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I/O modules • 145

Digital Outputs 750-511

Technical Data:

Formation of on/off times

The programming of the on/off times occur with the resolution of 10 bits. The five LSB of the 16 bit value can be zeros or one. The MSB will hold the sign and is preset to the null state..

750-511, /000-002

Table 4-1: Value Format

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146 • I/O modules

Digital Outputs 750-511

Fig.: 4-1 On/Off time relationships for Table 1.

Parameterizing the period/basic frequency

Either the period or the basic frequency can be predetermined any time by the PLC via 2 writeable registers, which are not protected against voltage loss.

As soon as the basic frequency has been input, the period is calculated automatically and entered in register 2.

The modification changes the frequency of both channels of the bus module.

The pulse width bus module loads the default values in the registers after "power-on". The PLC must take this case into account if the required values differ from the default values.

The correspondence between the digit value in the register and the period is different for each type of bus module:

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