Notes For North American Installations; Important - ABB DCS550 Guide Rapide

Notes For North American Installations

1. EMC conformity is not usually required in North America.
In most cases, the section "Notes on EMC" can be bypassed.
In this manual, you will see references to DIN, EN and VDE
standards. These are European standards and, generally, do
not apply to North America. It is, however, the responsibility of
the user to determine which standards need to be followed.
2. If using a DC contactor, you must connect an auxiliary
contact to a digital input of your choice and set para. Main-
ContAck accordingly. Set the following parameters:
MainContAck (10.21) =
DO8BitNo (14.16) =
MainContCtrlMode (21.16)=
Set these parameters AFTER macros are loaded but BEFORE
the drive is commissioned.
Digital output 8 (DO-8) must be used to turn the DC con-
tactor on and off.
DC contactor US:
DC contactor US K1.1 is a special designed contactor with 2x
NO contacts for C1 and D1 connection and 1x NC contact for
connection of Dynamic Brake resistor RB.
The contactor should be controlled by signal 6.03 Bit 10.
The acknowledge can be connected to parameter:
Overview of the Installation and Commissioning Process
Step 1:
Check converter for damage. Contact ABB Technical Support
if damage is found. In North America, call 1-800-435-7365
(1-800-HELP-365)
Step 2:
Select supporting hardware for the converter:
For specific recommendations for fuses, reactors, and con-
tactors, see the DCS550 Manual or technical catalog.
Circuit breaker or disconnect:
Current rating
Where: I
DC
Fuses:
AC Line Fuses: To properly protect the converter, semi-
conductor fuses on the incoming AC power line are required
in all cases.
DI-1 (or any input you
choose for the DC cont.
auxiliary contact)
10
DCcontact (3)
10.21 MainContAck
10.23 DCBreakAck
= I * 0.816 * 1.25 (min)
DC
= I * 0.816 * 2.50 (max)
DC
= nominal DC motor current
3. If using Dynamic Braking, the drive allows you to select
the stopping method under three different situations. Param-
eters 21.02, 21.03 and 21.04 select the stopping method for
loss of the OnOff, run command (StartStop, Jog1, Jog2, etc.),
and E-Stop input, respectively.
Each can be set to:
• RampStop • TorqueLimit
• CoastStop • DynBraking
In order to command the drive to perform a DB stop, one or
more of these parameters must be set to DynBraking. Most
users will want the drive to ramp stop when OnOff or a run
command (StartStop, Jog1, Jog2, etc.) input is cleared, and
dynamically brake when the E-Stop input is cleared. In that
case, use the following settings:
• Off1Mode (21.02)
• StopMode (21.03)
• E StopMode (21.04)
However, any case is allowed and the final decision is left to
the user.
Other parameters control stops during faults.
See:
LocalLossCtrl (30.27) ComLossCtrl
FaultStopMode (30.30) SpeedFbFltMode (30.36)
If using EMF feedback with dynamic braking, set:
• DynBrakeDly (50.11) = t
Where: t = the time (sec) it normally takes the motor to
stop during dynamic braking
DC Output Fuses: Fuses between the motor and the con-
verter are required for all regenerative (4-Q) converters.
This is to protect the motor and converter if a commutation
fault should occur. NOTE: DC output fuses are the same type
and size as AC line fuses.
Line reactor:
All thyristor-based dc converters cause notching in the AC
line due to motor commutation. A properly sized line reactor
will mitigate the effect on the line. Unless the converter uses
a dedicated isolation transformer, each converter requires its
own line reactor.
AC or DC contactor:
A contactor is required to safely disconnect the motor from
the incoming power when the converter is off. The contac-
tor can be installed between the line and the converter (an
AC contactor) or between the converter and the motor (a DC
contactor). Do not use both.
IMPORTANT: Other equipment may be necessary de-
pending on application and local codes.
3ADW000395R0100 DCS550 Quick guide edisf a 3ADW000395R0100 DCS550 Quick guide edisf a
= RampStop
= RampStop
= DynBraking
(30.28)
15 15