ABB ACS 580-OP Manual page 34

34
Warning! The instructions below are for general operations. System operation varies
by what options are included and how the drive parameters are set. See the
electrical drawings for this specific system for detailed information about system
operation.
Warning! Do NOT rotate the Manual/Off/Bypass switch while the motor is running.
This could cause damage to the drive system. Always stop the motor by
deenergizing the CR2 relay and Digital Input 6 (DI6). Then wait 10 seconds after the
motor comes to a stop before changing the selection of this switch.
System Overview
The two-contactor bypass (G310) feature in the drive system is used to run the drive
or bypass it for emergency operation of the motor. This is a manual bypass (except
with option G311), requiring a person to switch to and from bypass. The system
includes two electrically interlocked contactors, a motor overload relay and a door-
mounted Drive/Off/Bypass switch. The switch has three settings (DRIVE, OFF, and
BYPASS) and controls both contactors simultaneously. One contactor isolates line
power from the motor when in DRIVE mode. The other contactor isolates the drive
from the motor when in BYPASS mode.
Parameters
As shipped, the drive system uses the ABB Hand/Auto Macro with some parameter
modifications:
Parameter No. Parameter Name
20.11
21.03
Additional modifications depend on which options are included:
All with SS2 Hand/Off/Auto selector switch (option P919):
Parameter No. Parameter Name
19.17
20.08
With SS2, without PT1 Speed potentiometer (option G303):
Parameter No. Parameter Name
22.11
22.18
28.11
With SS2 and with PT1, above three parameters remain set to Hand/Auto macro
settings.
IMPORTANT: See the "as shipped" drawing for specific settings for your drive.
The following description of operation assumes the above parameters are set as
indicated.
ACS580-0P with Bypass
Run Enable Stop Mode
Stop Mode
Local Control Disable
Ext2 In1 Source
Ext1 Speed Ref1
Ext2 Speed Ref1
Ext1 Freq Ref1
Supplemental Installation Manual for ACS580-0P
Setting
1 = ramp
1 = ramp
Setting
1 = disabled
2 = DI1
Setting
18 = control panel (ref saved)
1 = AI1 scaled
18 = control panel (ref saved)