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Terminal Identification
The terminals for signal, AC power and motor connections are shown in
Figure 3-2. Separate ground connections are provided for power and
motor grounds.
Potentiometers
P1 − P6
S1 DIP Switch
AC Line Connections
A power disconnect should be installed between the input power service and
the control for a fail-safe method to disconnect power. The control will remain
in a powered-up condition until all input power is removed from the control and
the internal bus voltage is discharged.
Protective Devices
Recommended fuse sizes are based on the following:
115% of maximum continuous current for time delay.
150% of maximum continuous current for Fast or Very Fast action.
Note: These general size recommendations do not consider harmonic currents or
ambient temperatures greater than 40°C.
Be sure a suitable input power protection device is installed. Use the
recommended fuses listed in Tables 3-4 and 3-5 (Wire Size and Protection
Devices). Input and output wire size is based on the use of copper conductor
wire rated at 75 °C. The table is specified for NEMA B motors.
Fast Action Fuses:
Very Fast Action
Fuses:
Time Delay Fuses:
3-3 Receiving and Installation
Figure 3-2 Terminal Identification
POWER
FAULT
50
40
60
FWD
30
70
REV
20
80
10
90
STOP
0
100
% Speed
P1
P2
P3
P4
P5
P6
1
L1 L2 L3
R2 R1
B−
T1 T2 T3
Power
Motor
GND
GND
115/230VAC, Buss KTN
460VAC, Buss KTS
115/230VAC, Buss JJN
460VAC, Buss JJS
115/230VAC, Buss FRN
460VAC, Buss FRS
J4 Control Terminal Strip
J5 Power Terminal Strip
MN715P
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