11 .3 alternate two-wire start/stop control – Lenze TCF Series User Manual

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11 .3

ALTERNATE TWO-WIRE START/STOP CONTROL

This wiring diagram shows an alternate two-wire start/stop control scheme, using one maintained
contact for RUN FORWARD and another maintained contact for RUN REVERSE .

MAINTAINED

RUN FORWARD

CONTACT

SIGNAL

COMMON

0-10

VDC

INPUT

DIGITAL

INPUT

REFERENCE

RUN

FORWARD

RUN

REVERSE

0-10

VDC

or

4-20

mA

SELECT

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

MAINTAINED

RUN REVERSE

CONTACT

(See Note 3)

(See Note 3)

(See Note 3)

NOTES
• Close TB-1 to TB-4 to RUN FORWARD and open TB-1 to TB-4 to STOP .

Close TB-13A to TB-4 to RUN REVERSE and open to STOP .

• For this configuration, ROTATION DIRECTION (Parameter 17) must be

set to FORWARD AND REVERSE (02), and TB-13A (Parameter 10)
must be set to RUN REVERSE (06) .
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 or 13D 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 .

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