Emerson unidrive m200 - Section 6 - Alarm & Faults; Electronic Bypass Keypad Alarms and Faults

32 Electronic Bypass Controller Installation and Commissioning Guide
Section 6 - Alarm & Faults
There are two different locations a fault or alarm will be displayed:
1. The electronic bypass keypad
2. The VFD keypad
6.1 Electronic Bypass Keypad Alarms and Faults
There are four (4) Alarm LEDs on the electronic bypass keypad indicating the faults
that may occur. They are as follows:
1. Motor Overload: Indicates that the manual motor overload relay has tripped.
Check that overload relay is properly set for motors full load Ampere rating. Check
for excessive motor current and load.
2. Safety: Indicates that an external safety interlock is in the open position.
If a safety input is not used, check the bypass terminal block for a jumper between
terminals TB2-3 and TB2-8. If a safety input is used, verify that the safety contact
is closed.
I
ncom
i
n
g
P
owe
r
P
ower
On
1
Select O
p
eration Mode
RUN
(
1
)
Rest mechanical overload inside enclosure
2
S
elect Run Mode
I
n
p
u
t
C
ontacto
r
By
pass
C
ontacto
r
O
ut
p
ut
C
ontacto
r
P
ress
O
FF
/
RE
S
ET once to cancel RUN mode
P
ress OFF/RESET twice to cancel OPERATION mode
TE
ST
HAND
VFD
AU
T
O
O
F
F
RESET
RESET
BYPASS
BYPASS
VFD
F
M
Alarm Display
Motor (1)
Overload
External
Safety
Fire
Alarm
VFD
Fault