Control Wiring - Emerson Control Techniques Focus 3N User Manual

Single phase, uni-directional non-regenerative dc drive
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TERMIN
P
in Number
1
+24 Vdc Supply :
for it to be used to power external circuits. External use will void warranty.
2
Tie Point:
the Motor Thermal or Stop button connection.
3
Run Input: When +24 Vdc is applied to this terminal, the Run relay picks
up, the Speed loop and the Current loop are enabled, and the clamp on
the SCR firing circuits is released.
4
Run Relay Contact Output:
0.5amps @ 120VAC for non-inductive loads. It can be used as the seal-in
contact in a three-wire run circuit or as the run contact feedback in a two-
wire system.
5
Run Relay Contact :
6
Run Relay Contact:
120VAC for non-inductive loads.
7
Jog Input:
accel / decel circuit is electronically disconnected from the speed loop and
the jog speed command (from the jog speed pot) is electronically switched
in. This
(mainta
Run/J
og connections already shown on page 30.
8
Jog Potentiometer Supply voltage input
connected to the +10 Vdc (TB2-9) speed pot supply when jog is required.
9
+10 Vdc Spee
therefore the rec
10
Standard Speed command input
the wiper of t
11
Unused:
Page 26

Control Wiring

AL CONNECTIONS (TB2) & DESCRI
Powers the logic inputs to the drive. It is not intended
It has no internal connections and is used as a tie point for
Relay common connection.
Normally Closed connection. Rated: 0.5amps @
When +24 Vdc is applied to this input, the output of the
jog speed command can be configured as a Thread speed
ined jog speed) by jumpering terminals TB2-3 & 4 in addition to the
d pot / Jog supply vo
ommended Jog Pot valu
he speed pot wiper. Input imp
This terminal is not used with the non-regen F3N drives.
PTIONS
Normally Open connection.
:
This terminal is typically
ltage
:
Maximum load is 5ma
e would be 5K ohms
: Typically this input is connected to
edance: 20Kohm.
Rated:

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