15
Installation
START/STOP pushbuttons
Pushbutton operation of the MM300 Series requires a momentary normally open STOP
pushbutton be wired to terminals B2 and B3 and a momentary normally closed START
pushbutton wired to terminals B1 and B2. These switches must be used together and
are not included with the drive. The B1, B2 and B3 terminals are on terminal block
TB502.
If the START/STOP pushbuttons are not used, wire a jumper between terminals B1
and B3 to bypass the latching circuit. The drive will then operate in a power-up start
mode. See Figure 6 (page 13) for these switch connections.
Tachometer feedback
Using tachometer feedback improves speed regulation from approximately 1% of
motor base speed to approximately 0.1% of motor base speed. Use tachometers
rated from 7 VDC per 1000 RPM to 50 VDC per 1000 RPM. Connect the tachometer
to terminals T1 and T2 of terminal block 502 (TB502). Place SW504 in the TACH
position. See Figure 6 (page 13) for tachometer connections. The TACH trimpot trim-
pot must be adjusted prior to operating with tachometer feedback. Refer to the
Calibration section for instructions on calibrating the TACH trimpot.
To Next Page
Loading...
Need help?
General
