Using contactors – Rockwell Automation 20P PowerFlex Digital DC Drive User Manual
Page 31
Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
31
Installation and Wiring
Chapter 1
Using Contactors
When using an AC input contactor, the IEC AC1 rating of the contactor must
be equal to the rated thermal (RMS) current value at the main input of the drive.
Drive configurations for AC or DC contactors, with or without a dynamic brake,
are as follows (see Typical Power Wiring Diagrams on page
for wiring
examples):
•
When only an AC contactor is used:
❏
[ContactorControl] to 1 “AC Cntctr” (default
value)
(1)
❏
Set one [Relay Out x Sel] parameter and one [Digital Inx Sel]
parameter to “Contactor” (default value for parameters
[Relay
Out 1 Sel] and
[Digital In8 Sel])
•
When only a DC contactor is used:
❏
[ContactorControl] to 3 “DC Cntctr”
(1)
❏
Set one [Relay Out x Sel] parameter and one [Digital Inx Sel] to
“Contactor” (default value for parameters
[Relay Out 1 Sel] and
[Digital In8 Sel])
•
When an AC contactor and dynamic brake contactor are used:
❏
[ContactorControl] to “AC Cntctr+DB”
(1)
❏
Set one [Relay Out x Sel] parameter (
[Relay Out 2 Sel]) to “Contactor” and the other relay output to
“ContactorDB”
❏
Set one [Digital Inx Sel] parameter to “Contactor” (default value for
parameter
[Digital In8 Sel])
•
When a DC contactor and dynamic brake contactor are used:
❏
[ContactorControl] to “DC Cntctr+DB”
(1)
❏
Set one [Relay Out x Sel] parameter (
[Relay Out 2 Sel]) to “Contactor” and the other relay output to
“ContactorDB”
❏
Set one [Digital Inx Sel] parameter to “Contactor” (default value for
parameter
[Digital In8 Sel])
•
When a contactor is NOT used:
❏
[ContactorControl] to “None”
(1)
❏
Do NOT set either [Relay Out x Sel] parameter to “Contactor” or
“ContactorDB”
❏
Do NOT set any [Digital Inx Sel] parameter to “Contactor”
(1) Par 1391 [ContactorControl] is contained in the “Advanced” parameter configuration group. See How Parameters are Organized on
page
for more information.