User’s Manual
23
TEST
switch required for threshold voltage adjustments and system
calibration. This display panel has 1000V of electrical isolation from the drive
system.
The function of each indicator is described below.
PWR
(P
OWER
)
The GREEN
POWER
LED is
ON
if power is applied to the system.
RTR
(R
IDE
-T
HRU
R
EADY
)
The GREEN
RIDE-THRU READY
LED is
ON
if the module is operating
properly.
RTA
(R
IDE
-T
HRU
A
CTIVE
)
The AMBER
RIDE-THRU ACTIVE
LED is
ON
if the module is regulating
the DC bus voltage under an input line dip condition.
OT
(O
VER
-T
EMP
)
The RED
OVERTEMP
LED is
ON
if the heatsink temperature exceeds
70
C.
TEST
S
YSTEM
S
WITCH
The Test System push-button switch will cause the Ride-Thru section to
raise the DC bus dip setpoint by 17%. The inverter input current will drop
and the Ride-Thru current will start. This test will run and the DC bus dip
setpoint will remain raised for as long as the switch is pressed. For
parallel units test should connect to both units using a double pole relay.
4.2.3.1. B
US
V
OLTAGE
M
ETER
The Bus Voltage Meter indicates the Ride-Thru DC bus voltage. The
voltmeter can be driven from the 3534I2 board or the 3660M1 board
depending on application parameters. Each of these boards uses a
voltage divider connected across the DC bus to drive the panel meter.
The Voltmeter will read slightly lower than the drive bus when idle.
4.2.3.2. B
US
C
URRENT
M
ETER
The Bus Current Meter indicates the positive DC bus current supplied by
the Ride-Thru module. For voltage-isolated panels, the current is sensed
by a Hall Effect device and the meter is driven from the 3534I2 board.
4.2.3.3. A
CTIVE
C
YCLES
C
OUNTER
The Active Cycles Counter indicates the number of times the Ride-Thru
module has been active since this counter was last reset. The counter is
battery powered and therefore does not lose its count during a power
outage. The counter may be reset to zero by pressing the Reset push-
button. This button is located to the right on the front face of the counter.
4.2.3.4. T
OTAL
RTA
C
YCLES
C
OUNTER
The Total RTA Cycles Counter indicates the lifetime total number of times
the Ride-Thru module has been active. The counter is battery powered
and therefore does not lose its count during a power outage. This counter
is not affected by the Reset push-button located to the right on the front
face of the counter. To reset the Total RTA Cycles Counter please
consult Bonitron Engineering.
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