Lenze MCH Series - Manual (Page 37)

13435744_EDBMH01_v13 33
14.2 START/STOP AND SPEED CONTROL
14.2.1 START/STOP CONTROL IN KEYPAD H/O/A MODE
In Keypad H/O/A mode, the HAND (START) and AUTO (START) keys on the keypad
are used to select HAND and AUTO modes. When the HAND (START) key is pressed,
HAND mode is selected and the drive starts immediately. When the drive is put into
AUTO mode, it will respond to an external start/stop command. This is done as follows:
1.
Press the AUTO key on the keypad. The H/O/A STATUS portion of the display will
indicate AUTO.
2. Wire a normally open maintained contact between TB-1 and TB-2 on the terminal
strip. Close the contact to start the drive, and open the contact to stop the drive.
Refer to the wiring diagram in Section 15.2.
14.2.2 START/STOP CONTROL IN REMOTE H/O/A MODE
In Remote H/O/A mode, the terminal strip is used to select HAND and AUTO modes.
This is done as follows:
1.
Program TB-13C (Parameter 49) to HAND. Once this is done, the HAND (START)
and AUTO (START) keys on the keypad will be disabled.
2. Wire a contact between TB-13C and TB-2. Close this contact to select HAND
mode.
NOTE
When HAND mode is selected, TB-1 must be closed to TB-2 to
allow the drive to run. Therefore, when TB-13C is closed to TB-
2, TB-1 must also be closed to TB-2 by some means (another
set of contacts, etc).
3. Wire a contact between TB-12A and TB-2. Close this contact to select AUTO
mode.
4. Wire a normally open maintained contact between TB-1 and TB-2. In AUTO mode
(TB-12A closed to TB-2), close this contact to start the drive and open this contact
to stop the drive.
Refer to the wiring diagram in Section 15.3.
NOTE
If the drive is operating in Remote H/O/A mode, and the OFF (STOP)
key on the keypad is used to stop the drive (instead of using the OFF
position of the remote H/O/A switch), the HAND (START) or AUTO
(START) key must be pressed to cancel the keypad stop and allow
the drive to start again.