bonitron M3528M4, Customer Reference Manual

Page: 16 / 24

M3528M4
16
Output relays open. The Fault will latch until the unit cools down and the user
pushes the reset button on the front panel.
4.2.2.
C
ONNECTORS
4.2.2.1.
TB1 -1 (F
USE
)
This terminal connects the input side of the fuse for monitoring. A voltage
higher than 10VDC on this pin between TB1-1 and TB1-12 will indicate a good
fuse.
4.2.2.2.
TB1 - 2
THRU
12 (B
ATTERY
M
ONITOR
)
These terminals measure the voltage across each individual cell. The nominal
voltage is 12VDC. If the voltage between adjacent pins is not between 9 volts
and 15.1 volts, a fault will be indicated.
4.2.2.3.
TB2 - 1&2 (P
OWER
C
ONNECTOR
)
This is the control power input for the board. This can be from a separate
24VDC power supply; or the first two batteries of the string can be used as a
local supply by connecting to Terminals TB5-7 & 8. Be aware that this can
cause unbalanced battery voltages if the batteries are not being constantly
charged.
4.2.2.4.
TB3 - 1
THRU
10 - B
ATTERY
C
ELL
G
OOD
Each of these outputs indicates that each individual battery’s voltage is within
range. When the voltage falls outside the range, the input will go low.
4.2.2.5.
TB3 - 11 N
OT
O
VER
T
EMPERATURE
This output indicates that there is not an overtemperature alarm. It is
controlled by the temperature input at TB4-1 & 3.
4.2.2.6.
TB3 - 12 N
OT
B
LOWN
F
USE
This output indicates that there is no blown fuse.
4.2.2.7.
TB3 - 13 N
OT
U
NDERVOLTAGE
This output is normally high, and indicates that there is no undervoltage fault
on any battery.
4.2.2.8.
TB3 - 14 N
OT
O
VERVOLTAGE
This output is normally high, and indicates that there is no overvoltage fault
on any battery.
4.2.2.9.
TB3 - 15 (R
ESET
S
IGNAL
)
Closing a contact between TB3-15 and TB3-16 will reset any faults. The input
is open base pulled up internally to 24VDC.
4.2.2.10.
TB3 - 16 (24V C
OM
)
Signal common for all outputs on TB3.
4.2.2.11.
TB4 - 1&3 (T
HERMOSTAT
I
NPUT
)
Accepts normally closed thermostat terminals.
4.2.2.12.
TB5 - 1&2 (S
TATUS
S
IGNAL
O
UTPUT
)
The isolated overvoltage signal output connector is connected to a normally
open held closed relay.