11 .3 alternate two-wire start/stop control – Lenze TCF Series User Manual
Page 26
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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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