ABB ACH580 Series User Manual page 47

38
Programming Advanced Override (Override 2)
Parameter
Parameter Name
Number
1701 OVERRIDE 2
1702 Permissive Override
PERMIS OVR
1703 Interlock 1 Override
INTLK1 OVR
1704 Interlock 2 Override
INTLK2 OVR
1706 Interlock 4 Override
INTLK4 OVR
1707 FAULTS OVR
1708 OVR2 MODE
1401 RO1 SELECT
1402 R1 ON DLY
1403 R1 OFF DLY
1410 RO4 SELECT
1
1411 R4 ON DLY
1
1412 R4 OFF DLY
1413 RO5 SELECT
1
1414 R5 ON DLY
1
1415 R5 OFF DLY
1) Indicates a parameter that is unchanged from its default value.
E-Clipse bypass functions overview
ACH580 E-Clipse bypass and packaged drive user manual
Parameter Value
Programming the E-Clipse Bypass for Advanced Override Operation
[1] DI5
as required
as required
as required
as required
as required
as required
[1] BYPASS
[2] VFD
[3] VFD/BYPASS
[4] STOP
[7] BYP NOT FLT
10.0 s (or as
required)
2.0 s
[12] OVERRIDE
0.0 s
0.0 s
[32] OVRD2 ENAB
0.0 s
0.0 s
Comments
Digital Input 5 of the E-Clipse Bypass is used to activate Override
operation for both the VFD and the E-Clipse Bypass.
Determines whether the E-Clipse's Run Permissive input can
interrupt Override operation. (The default value does not allow
Run Permissive to interrupt Override operation. If the damper
control interlock function is desired during Override operation, this
interlock must be ACKNOWLEDGED.)
Determines whether the Eclipse's Interlock 1 input can interrupt
Override operation. (The default value does not allow Interlock 1
to interrupt Override operation.)
Determines whether the Eclipse's Interlock 2 input can interrupt
Override operation. (The default value does not allow Interlock 2
to interrupt Override operation.)
Determines whether the Eclipse's Interlock 4 input can interrupt
Override operation. (The default value does not allow Interlock 4
to interrupt Override operation.)
Determines whether certain Eclipse Faults can interrupt Override
operation.
During Override 2 operation, the motor will only run at full speed in
bypass mode.
During Override 2 operation, the motor will only run at a controlled
speed from the ACH580 VFD. Parameter Group 70 in the
ACH580 VFD is used to program its operation.
If the VFD cannot run the motor, the motor will stop.
Requires additional control wiring between E-Clipse and ACH580
VFD.
During Override 2 operation, the system will first attempt to run
the motor from the ACH580 VFD, as programmed in Parameter
Group 70 of the ACH580 VFD.
If the VFD loses power or is in a fault condition, the system will
use the E-Clipse Bypass to run the motor at full speed in bypass
mode.
Requires additional control wiring between E-Clipse and ACH580
VFD. See the diagram on page 41.
During Override 2 operation, the motor will stop.
Relay 1 is used to delay the Override 2 command for the E-Clipse
Bypass during power-up of the system. This is to ensure that the
ACH580 VFD has had enough time to boot up before the system
goes into Override 2 Mode. (the value of parameter 1402 can be
adjusted as needed.)
When the E-Clipse Bypass is in the Override 1 or Override 2
mode, this relay will activate. Its normally open contacts are wired
to activate the Override function in the ACH580 VFD. This will
cause the VFD to display WARNING 2020, Override. It will also
lock out the ability to change the VFD's parameters or control it
externally.
Enables Override 2 operation for the VFD based on the
programming of E-Clipse parameters 1701 through 1708. The
normally open contact of this relay is wired to apply control voltage
to Digital Input 4 of the ACH580 VFD. This enables the VFD to run
in Override mode. The E-Clipse Bypass can stop the VFD during
Override 2 operation by opening this contact.