Rockwell Automation 1503FC IntelliVAC Contactor Control Module - Series E - Manual (Page 27)

3-14 Installation and Wiring
1503-UM053B-EN-P – June 2013
Figure 3.7 – Two-Wire Control
Three-Wire Control
If using three-wire control, the CLOSE contactor input is maintained
high using two contacts. Momentarily opening this input will cause the
IntelliVAC to open the contactor. Momentarily closing the START
contact will provide a CLOSE command to IntelliVAC (given that all
permissives are satisfied).
In this configuration, the STATUS output acts as a seal-in contact. If a
fault occurs, in addition to cycling control power over to the IntelliVAC
module, the CLOSE command must be removed for a minimum of 4
seconds before being re-applied. Refer to Figure 3.8.
A T T E N T I O N A T T E N T I O N
For Emergency Stop applications requiring
removal of power, a contact should be placed in
the “L1” control power rung to the IntelliVAC.
If the TDUV feature is used, the contactor will
not open until the programmed TDUV time
has expired.
* Refer to Table 3.A for recommended fuse sizing.
MOV
3 2
1
EC
-
+
4
TCO
12
11
AUX CCO
5
6
L1 L2/N G
+ -
STOP
START
OVERLOAD
CONTROL
POWER
FUSE
*
M-IV
9 10
CLOSE
M-IV
15 16
CONTACTOR
STATUS
M
M-IV
M
CAPACITOR
(OPTIONAL)
CONTROL POWER
EMERGENCY STOP
(when required)
Figure 3.8 – Three-Wire Control