Siemens EK 726 Series Wartungshandbuch PDF herunterladen (Seite 78)

Communications / interfaces

MICROMASTER

MICROMASTER Vector

MIDIMASTER Vector

SIEMENS DA 64 – 2001/2002

4/2 Version C4

4. COMMUNICATIONS &

INTERFACES

4.1 Communications, operator control

and display elements

MICROMASTER, MICROMASTER Vector and

MIDIMASTER Vector have the identical operator control and

display elements.

The AC drive inverters can either be controlled, data read-out

and parameterized at the unit itself or also externally:

1. At the drive inverter, using:

· Membrane keypad with 7 keys - this is provided as

standard

· Optional OPM2 operator panel with plain text display

· Or control terminal strip

2. Externally, using:

· Serial RS 485 interface

· Optional OPM2 operator panel with plain text display

· Optional PROFIBUS module

· Or a PC with DRIVE-MONITOR

4.2 Standard operator panel

The standard operator panel has 7 keys as well as an LED

display comprising 4 x 7 segments, and has the following

functions:

· Starting the drive inverter

· Operator control functions:

· Motor ON/OFF, increasing/decreasing the motor

frequency setpoint;

· "Clockwise/counter-clockwise rotation" selection and the

jog frequency using the JOG key

· Starting and stopping with a pre-set frequency

· Displaying motor frequency setpoints and actual values

· Displaying and changing parameters

· Displaying the AC drive inverter status

· Displaying alarm messages

· Displaying and resetting fault messages

The function keys can be individually inhibited. The OFF key

is always active for safety reasons.

LED

display

Key, CLOCKWISE/

COUNTER-CLOCKWISE

direction of rotation

RS485

interface

key

OFF

key

Removable

cover

JOG

key

INCREASE

frequency

DECREASE

frequency

Parameterizing

key

Jog

Fig. 1: Standard operator panel

There is a 9-pin SUB-D connector

(X502) on the membrane keypad which forms the RS485

interface. The optional PROFIBUS module or the plain text

operator panel can be connected to this interface. The drive

can be connected directly to a PC via the RS232 interface on

the plain text operator panel.

4.3 Serial RS485 interface

The RS485 interface of the MICROMASTER and the

MIDIMASTER operates with the USS protocol, can be

networked with 31 nodes (stations) via a bus and allows a

max. data transfer rate of 19.2 kbit/s.

It is possible to access the RS485 interface via a SUB-D

connector (refer to Table 1 for the pin assignment) - for

6SE32 drives – via the control terminal strip.

Fig. 2: Pin assignment of the SUB-D connector

1 2 ... 73 74 75 76 77 78 79 80 81 82 83 ... 119 120

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