30 M301L
14.2 START/STOP AND SPEED CONTROL
14.2.1 REMOTE MODE SELECTION
In order to respond to external START/STOP commands, the drive must be in the
REMOTE mode. The REMOTE mode can be selected by one of three methods on the
MC3000 drive:
1. Program Parameter 30 - CONTROL to REMOTE.
2. Program Parameter 30 - CONTROL to KEYPAD or KEYPAD 2, which activates
the LOCAL/REMOTE key on the keypad. Press the LOCAL/REMOTE key to
select REMOTE mode, and then press the ENTER key within three seconds.
3. Program Parameter 30 - CONTROL to TB STRIP, and program the function of
terminal TB-13A or TB-13C (Parameter 47 or 49) to LOCAL SELECT. DO NOT
make a contact closure between TB-13A or TB-13C and TB-2 (making the contact
closure will select LOCAL mode).
14.2.2 TWO-WIRE START/STOP CONTROL
A two-wire start/stop circuit can be accomplished as follows:
1. Select REMOTE mode (see above).
2. Connect a jumper between TB-12A and TB-2 to provide a permanent START
command to the drive.
3. Wire a normally open maintained contact between TB-1 and TB-2. Close this
contact to RUN the drive and open this contact to STOP the drive.
Refer to the wiring diagram in Section 15.2.
14.2.3 THREE-WIRE START/STOP CONTROL
A three-wire start/stop circuit can be accomplished as follows:
1. Select REMOTE mode (see above).
2. Wire a normally closed momentary STOP contact between TB-1 and TB-2.
Momentarily open this contact to STOP the drive.
3. Wire a normally open momentary START contact between TB-12A and TB-2.
Momentarily close this contact to START the drive.
Refer to the wiring diagram in Section 15.3.
14.2.4 SPEED REFERENCE SIGNALS
The drive allows for three analog speed reference inputs: a speed potentiometer (10,000
Ohm), 0-10 VDC, or 4-20 mA.
SPEED POT Connect the wiper to terminal TB-5A, and connect the high and
low end leads to terminals TB-6 and TB-2, respectively.
0-10 VDC Wire the positive to terminal TB-5A and the negative to terminal
TB-2. TB-5A input impedance is 200 kilohms.
4-20 mA Wire the positive to terminal TB-5B and the negative to terminal
TB-2. TB-5B input impedance is 100 ohms.
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