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READY INDICATION
(DISPLAY ILLUMINATED)
DOWN
BYPASS CONTROL
ESCAPE
esc
ENABLED LED
ENABLED
DRIVE AND BYPASS
SELECTED/FAULTED LED's
SELECTED
FAULTED
DRIVE
DRIVE/BYPASS
SELECT KEYS
MOTOR RUN
KEY/LED
Up Key
The On/Hand key can be used to manually
On/Hand Key
start the motor when the bypass has been
selected as the power source for the motor.
The Off/Reset key may be used to manually
stop the motor if the motor is running on
bypass power. The Off/Reset key also resets
most bypass Faults. It may take several
Off/Reset Key
minutes before the bypass can be reset after
an overload trip. If a bypass fault condition is
present, the second push of the Off/Reset
key puts the bypass in the Off mode.
The Auto key selects the Auto Start contact
or serial communications as the means for
Auto Key
starting and stopping the motor in the bypass
mode.
The Motor Run LED is illuminated red when
the bypass has lost its communications link
Motor Run LED
with the drive or when the motor or drive
protection functions have shut down the
drive.
The Drive key selects the drive as the power
Drive Key
source for the motor.
The Bypass key selects the bypass as the
Bypass Key
power source for the motor.
The Drive Selected LED is illuminated green
when the drive has been selected as the
power source for the motor and no drive fault
Drive Selected/
is present.
Fault LED
The Drive Fault LED is illuminated or flashes
red when the motor or bypass protective
functions have shut down the drive.
The Bypass Selected LED is illuminated
green when the bypass has been selected as
the power source for the motor and no
Bypass Selected/
bypass fault is present.
Fault LED
The Bypass Faulted LED is illuminated or
flashes red when the motor or bypass
protective functions have shut down the
bypass.
The Enabled LED is illuminated green under
the following conditions:
•
Both the safety interlock(s) and Run
Enable contacts are closed.
•
The Safety Interlock(s) contact are closed
Enabled LED
with no Start command present
The Enable LED flashes green if the Run
Enable contact(s) are closed and a start
command is present.
The Enable LED is illuminated red when the
Safety Interlock contact(s) are open.
Fig. 135 — Bypass Control Keypad Description
SMOKE CONTROL MODE
In the Smoke Control (Override 1) mode, the motor is powered by
AC line power through the bypass contactor. The source of the
Smoke Control command is DI 6 and is unaffected by external
stop commands. The VFD Keypad and the Bypass Keypad will
not accept user commands when the system is in Smoke Control
mode (the keypad user inputs are disabled). The user can switch to
the Smoke Control mode by closing the Smoke Control input con-
tact (DI 6). When the Smoke Control input contact is closed, the
system is forced to bypass and runs the motor. The Motor Run
LED flashes green when the system is in override. While in Smoke
BACK-LIT
LCD DISPLAY
UP
ENTER
ENT
ON/HAND KEY
HAND
OFF/RESET KEY
BYPASS
OFF/RESET
AUTO
AUTO KEY
MOTOR RUN LED
DESCRIPTION
Control, the system only responds to certain inputs. Normally,
when the Smoke Control input contact is switched from closed to
open, the system returns to the operating mode that existed prior to
entering Smoke Control and can once again be controlled using the
Drive and Bypass keys. The exception to this is when the Bypass
Override (Override 2) input contact is closed, in which case the
system switches to Bypass Override operation. See Fig. 136 for
typical wiring diagram.
Smoke Control Mode:
X2
1
2
3
4
Normal
5
damper
6
High pressure
7
fire
supply smoke
8
Freeze
9
return smoke
10
smoke
Field Wiring
Factory Wiring
Smoke Control Mode: Close contact on X2:10/fan starts regardless of
position of internal HOA switch and inputs X2:5 and X2:9/Inputs X2:6,
7 and 8 followed when configured. Internal overloads followed.
Fig. 136 — Smoke Detector Typical Wiring Diagram
PROGRAMMABLE RELAY CONTACT OUTPUTS
The ABB E-Clipse bypass has 5 programmable relay outputs as
standard, see Fig. 134. The default programming descriptions for
these relay outputs is described below.
BYPASS NOT FAULTED
The Bypass Not Faulted relay is energized during normal opera-
tion. The Bypass Not Faulted relay is de-energized when a bypass
fault has occurred.
SYSTEM RUNNING
The System Running relay is energized when the ABB E-Clipse
bypass System is running. The System Running relay provides an
output when the motor is running whether powered by the
ACH550 drive or the bypass.
SYSTEM STARTED
The System Started relay is energized when the ABB E-Clipse by-
pass system is started. Three conditions must be met in order for
the relay to energize:
1. A Start command must be present
2. The Safety Interlock input contact must be closed and
3. There can be no fault present in the system
BYPASS SELECTED
Relay output four is factory default programmed for Bypass Se-
lected. The relay will be energized anytime the user has placed the
system in Bypass Mode.
BYPASS AUTO
Relay Output five is factory default programmed for Bypass Auto.
The relay will be energized anytime the user has placed the bypass
in the Auto mode.
162
+24vdc
+24vdc
Digital input common
Ground
DI-1 Start / Stop (required field supplied)
DI-2 NOT SELECTED (Damper) Run Enable
DI-3 High priority Safety default (programmed)
DI-4 NOT SELECTED Emergency Shutdown
DI-5 NOT SELECTED (Low Priortiy Safety)
DI-6 SMOKE CONTROL
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