Bms Controller; Wiring Check - Profire Energy PF3100 Troubleshooting Manual

PF3100 TROUBLESHOOTING – SOLUTIONS TO COMMON PROBLEMS
4.3

BMS Controller

4.3.1 Wiring Check

Connection
Power wiring
Earth Ground
Valves
TCV Output
Dry Inputs
4-20 Inputs
Description
Make sure the power supplied to the BMS is either 12 or 24VDC. This should be
connected between 12-24VDC and the common terminal.
This terminal is internally connected to board common. Connect this to earth ground.
Connect the valve + to one side of the solenoid, connect valve – to the other side. Do not
ground the valve -. The valve should match the power rating of the system, for example if
it's a 12VDC system, use a 12VDC valve.
TCV out – is internally connected to GND. It can be used as a ground reference of the
output signal. TCV out+ is a current source output. The maximum voltage out of this port
is the same as the power supply to the board (12 or 24V).
When wiring an external current sink wire the TCV out+ to the signal input of the device.
Reference the device to ground via the TCV out- terminal.
Dry inputs include: Start, ESD, Proof of Closure, Aux In, Pressure and Level (Pressure and
level are dry inputs when configured as such in the UI). These are digital inputs and take
a 0V low and 12 or 24VDC high signal.
The signal input is the negative terminal. Protected power for the input is available from
the positive terminal.
To correctly use these inputs wire them from the positive terminal through a dry contact
and back into the negative terminal. The contact may be a relay or a switch.
The positive terminal is current limited to 100mA.
Both the Pressure and Level can be configured as 4-20 inputs. Power is provided from the
positive terminal. This can be used to power an external sensor. The voltage out of this
terminal matches the system voltage as either 12 or 24VDC. The output is limited to
100mA of current.
The negative terminal is the signal input. The input is reference to ground.
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V1.1
Nov 29, 2016
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