Minarik MM20000 Series User manual

1MM23071A-0862 Installation Guide
MM23071A-0862
Connection Guide
This Guide assumes that the user has installed the
MM23071A-0862 drive per user’s manual 250-0091.
This installation must be completed before connecting
and operating the drive. Refer to User’s Manual
250-0091, MM20000 Series Drives, for detailed
installation, operation and troubleshooting information.
Connections
Warning
Do not connect this equipment with power applied.
Failure to heed this directive may result in fire or serious
injury.
Minarik strongly recommends the installation of a
master power switch in the voltage input line, as shown
in Figure 1 (page 3). The switch contacts should be rated
at a minimum of 200% of motor nameplate current and
250 volts.

Power and line fusing connections
• Use 18-24 AWG wire for speed adjust potentiometer
wiring. Use 14–16 AWG wire for AC line (L1 and L2)
and motor (A1 and A2) wiring. Use 18 AWG wire for
field (F1 and F2) wire.
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2 MM23071A-0862 Installation Guide
Line fusing
Each MM23071A-0862 is shipped from the factory with
two 10A fast blow fuses preinstalled. External line fuses
are not required. Replacement fuses, p/n 050-0013, are
available from Minarik.
Power connections
Connect AC power leads to the drive’s line fuses, or to a
stop switch as shown in Figure 1 (recommended).
Warning
Dynamic braking, inhibit operation and decelerating to a
stop (shorting S1 to S2) may not stop a drive that is
malfunctioning. Removing line voltage (both L1 and L2)
is the only recommended method for emergency stopping.
For this reason, Minarik strongly recommends the
installation of a master power switch in the voltage
input line, as shown in Figure 1. The switch contacts
should be rated at a minimum of 200% of motor
nameplate current and 250 volts.

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3MM23071A-0862 Installation Guide
Figure 1. Power and Line Fusing Connections
LINE
FUSE
LINE
FUSE
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4 MM23071A-0862 Installation Guide
Motor, speed adjust potentiometer and field output
connections
Connect the the speed adjust potentiometer, field output
and a DC motor to the drive’s printed circuit board
(PCB) as shown in Figure 2 (page 6).
Refer to User’s Manual 250-0091 for alternative speed
adjust potentiometer and signal input (e.g., voltage
follower) connections.
Speed adjust potentiometer connections
Connect the provided speed adjust potentiometer to S1,
S2 and S3 as shown in Figure 2 (page 6).
Twist the speed adjust potentiometer leads to avoid
picking up unwanted electrical noise. If speed adjust
potentiometer wires are longer than 18 in. (0.5 m), use
shielded cable. Keep speed adjust potentiometer leads
separate from power leads (L1, L2, F1, F2, A1, A2).
Motor connections
Minarik drives supply motor voltage from A1 and A2
terminals. It is assumed throughout this manual that,
when A1 is positive with respect to A2 , the motor will
rotate clockwise (CW) while looking at the output shaft
protruding from the front of the motor. If this is opposite
of the desired rotation, simply reverse the wiring of A1
and A2 with each other.
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Connect a DC motor to PCB terminals A1 and A2 as
shown in Figure 2 (page 6). Ensure that the motor
voltage rating is consistent with the drive’s output
voltage.
Field output connections
5MM23071A-0862 Installation Guide
Warning
The field output is for shunt wound motors only. Do not
make any connections to F1 and F2 when using a
permanent magnet motor.

See Table 1 for field output connections. Use 18 AWG
wire to connect field output teminals F1 and F2 to a
shunt wound motor.
Table 1. Field Output Connections
Line Voltage Approximate Connect Motor
(VAC) Field Voltage (VDC) Field To
115 50 F1 and L1
115 100 F1 and F2
230 100 F1 and L1
230 200 F1 and F2
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6 MM23071A-0862 Installation Guide
Figure 2. Motor, Field and
Speed Adjust Potentiometer Connections
NOTES:
1. POWER CONNECTIONS OMITTED FOR CLARITY. REFER TO FIGURE 1
ON PAGE 3 FOR POWER CONNECTIONS.
2. REFER TO TABLE 1 ON PAGE 5 FOR ALTERNATE FIELD
CONNECTIONS. DO NOT CONNECT FIELD OUTPUT IF USING
PERMANENT MAGNET MOTOR.
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7MM23071A-0862 Installation Guide
Operation
Refer to User’s Manual 250-0091 for detailed operating
information.
Before applying power
• Verify that no conductive material is present on the
printed circuit board.
• Ensure that voltage select switch SW501 and
armature voltage select switch SW502 are set to the
proper positions.
Startup and shutdown
1. Turn the speed adjust potentiometer full
counterclockwise (CCW).
2. Apply AC line voltage.
3. Slowly advance the speed adjust potentiometer
clockwise (CW). The motor slowly accelerates as
the potentiometer is turned CW. Continue until the
desired speed is reached.
4. Set the speed adjust potentiometer to zero. The
motor will decelerate to a stop.
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8 MM23071A-0862 Installation Guide
901 East Thompson Avenue
Glendale, California 91201-2011
Tel: (800) MINARIK (646-2745)
Fax: [phone]
www.minarikcorp.com
Document Number 250-0335, Revision 0
PrintedintheU.S.A–6/01
$12.00 North America, $13.00 Outside North America
Warranty information
This product is covered by Minarik’s unconditional
warranty. Refer to User’s Manual 250-0091 or contact
your Minarik representative for more information.
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