Lenze MCH Series - Manual (Page 42)

38 13435744_EDBMH01_v13
15.3 REMOTE H/O/A
Shown below is the wiring diagram for selecting H/O/A from the terminal strip. Also
shown is the wiring for a 0-10 VDC or 4-20 mA speed reference signal. In HAND mode,
TB-1 must be closed to TB-2 in order to start the drive. In AUTO mode, close TB-1 to
TB-2 to RUN, and open to STOP.
RUN / ST
OP
CIR
CUIT C
OMMON
0-10 VDC
INPUT
4-20 mA INPUT
1 2 5A 5B 6 10A 12A RXA TXB 10B 2 13A 13B 13C 13D 14 15 2
16 17 18
FORM C
RELAY
CIR
CUIT C
OMMON
MAINTAINED
RUN/STOP CONTACT
(AUTO MODE ONLY)
The TB-2 terminals are internally tied together
AUT
O MODE SELEC
T
HAND MODE SELEC
T
CIR
CUIT C
OMMON
HAND
OFF
AUTO
HAND
OFF
AUTO
NOTES:
1.
Program TB-13C (Parameter 49) to HAND. This forces TB-12A to act as AUTO.
2. In AUTO mode (TB-12A closed to TB-2), close TB-1 to TB-2 to RUN, and open to
STOP. The speed reference will be determined by AUTO SOURCE (Parameter
24).
3. When HAND mode is selected (TB-13C closed to TB-2), TB-1 must also be
closed to TB-2 in order to RUN. The speed reference will be determined by HAND
SOURCE (Parameter 29).