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BasicInstallation 3-19MN1942

3.5.1 Motor circuitcontactors
Ifrequired by local codes or for safety reas ons,an M-Contac tor(motor c ircuitc ontactor) may be
installedto provide aphysical disconnection of the motor windingsfrom the MicroFlex e100 (see
section 3.5). Opening the M-Contactor ensures that the MicroFlex e100 cannot drive the motor,
which may be necessary during equipment maintenance or similar operations . Under certain
circumstances, it may also be necessary tofit a brake to a r otary motor. Thisis impor tant with
hangingloads wheredisc onnecting the motor windings could result in the load falling. Contact
yourloc al supplier for details of appropriate brakes.
CAUTION: Ifan M-Contactor i s installed, the MicroFlex e100 must bedisabled at least
20msbefore the M-Contac tor is opened. Ifthe M-Contactor is opened while
the MicroFlex e100 is supplying voltage and current to the motor, the
MicroFlex e100 may be damaged. Incorrect installation or failure of the
M-Contactor or its wiring may result in damage to the MicroFlex e100.
Ensure that shielding of the motor cable is continued on both sides of the contac tor.
3.5.2 Motor powercable pin configuration - Baldor BSM rotary motors
Figure8 shows the pin c onfiguration for a typical B aldor motor cable, part number CBL025S P-12:
Signalname Motor / cable pin Motorcab le wire color
Motor U 1Black, labeled ‘1’
Motor V 4Black, labeled ‘2’
Motor W 3Black, labeled ‘3’
Earth/ground 2Green/Yellow
Thermalsw itch AGreen
Thermalsw itch BWhite
Brake CBlue
Brake DRed
Cableconnector end view
(female)
1
B
A
3
2
4
Motorpower connector
(male)
1
B
A
3
2
4
C
DC
D
Note:
Notall motors
arefittedwith
abrake so
pinsC and D
mightnot be
connected.
Figure8 - Baldor motor powercable pin configuration