Power Brick Controller User Manual
Special Functions & Troubleshooting
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PTC Motor Thermal Input
The PTC motor thermal Input (pin #8 of X1-X8 connectors) is typically used to bring in motor over-
temperature thermistor signal(s) into the Power Brick Controller. Proper action can then be taken to safely
stop operation if the motor is overheated.
Caution
No automatic action is taken by the Power Brick Controller when the
PTC input is triggered, it is the user’s responsibility to trap it (i.e. in a
background PLC) and insert safety logic to stop the motor and / or
alert the operator.
The PTC input (pin #8) is typically wired to ground (pin #12) in series
with the motor PTC thermistor:
In normal mode operation, the circuit is open and PTC (pin #8) is
pulled up to +5 VDC internally, this corresponds to a setting of 1
in software.
If the motor is overheated, the circuit is closed and PTC (pin #8) is
pulled down to ground (pin #12), this corresponds to a setting of 0
in software.
Motor
PTC thermistor
Note
If the PTC function is not used, this input can be used as general
purpose relay input.
PTR
Ch1PTC->PowerBrick[
0
].GpioData[
0
].
24.1
;
// Channel 1 PTC Input, X1
PTR
Ch2PTC->PowerBrick[
0
].GpioData[
0
].
25.1
;
// Channel 2 PTC Input, X2
PTR
Ch3PTC->PowerBrick[
0
].GpioData[
0
].
26.1
;
// Channel 3 PTC Input, X3
PTR
Ch4PTC->PowerBrick[
0
].GpioData[
0
].
27.1
;
// Channel 4 PTC Input, X4
PTR
Ch5PTC->PowerBrick[
1
].GpioData[
0
].
24.1
;
// Channel 5 PTC Input, X5
PTR
Ch6PTC->PowerBrick[
1
].GpioData[
0
].
25.1
;
// Channel 6 PTC Input, X6
PTR
Ch7PTC->PowerBrick[
1
].GpioData[
0
].
26.1
;
// Channel 7 PTC Input, X7
PTR
Ch8PTC->PowerBrick[
1
].GpioData[
0
].
27.1
;
// Channel 8 PTC Input, X8
