11 .2 two-wire start/stop control – Lenze TCF Series User Manual

Page 25

Advertising
background image

11 .2

TWO-WIRE START/STOP CONTROL

This wiring diagram shows a typical two-wire start/stop control scheme, using one maintained
contact (such as that from a PLC) for RUN and STOP commands, and a selector switch to
select rotation direction .

MAINTAINED

RUN/STOP CONTACT

SIGNAL

COMMON

0-10

VDC

INPUT

DIGITAL

INPUT

REFERENCE

START

START

REVERSE

4-20

mA

INPUT

1

2

5 6

14

TXA TXB

4

13A 13B 13C

4

13D

25

11

15

30

2

SIGNAL

COMMON

DIGITAL

INPUT

REFERENCE

(See Note 3)

START

FORWARD

FWD

REV

(See Note 3)

NOTES

• Close TB-1 to TB-4 to RUN, and open TB-1 to TB-4 to STOP .
• For this configuration, ROTATION DIRECTION (Parameter 17) must be

set to FORWARD AND REVERSE (02), TB-13A (Parameter 10) must be
set to START REVERSE (07), and TB-13D (Parameter 49) must be set to
START FORWARD (05) .
If reverse rotation is not required, simply close TB-1 to TB-4 to RUN,
and open to STOP (no other wiring or programming is required).

• For 0-10 VDC or 4-20 mA speed control, use one of the following methods:

- Program Parameter 05 - STANDARD REFERENCE SOURCE for 0-10

VDC (03) or 4-20 mA (04) . This method is preferable if only one speed
source is required, as this method leaves the TB-13 terminals free to be
used for other functions .

- Program one of the TB-13 terminals (13B, 13C are available in this

example) for 0-10 VDC (02) or 4-20 mA (03) . When that TB-13 terminal
is closed to TB-4, the drive will respond to the selected speed reference
signal . If that TB-13 terminal is not closed to TB-4, the drive will respond
to the speed control source selected in Parameter 05 - STANDARD
REFERENCE SOURCE . This method must be used if it is necessary to
toggle between two speed sources .

21

Advertising