Specifications

LA Series Linear Servo Amplifier Technical Reference Manual
29
12 Test Points
Five user test points are provided on the amplifier, TP1-TP5. They are located at the top of the
amplifier, between JP2 and the Pushbutton switch.
TP1 – I Out – This test point provides an analog voltage proportional to the current output of the amplifier.
The scaling for this output is either 10 amps per volt (LA-200 and LA-407) or 3.3 amps per volt (LA-525).
Note that this value is the absolute value of instantaneous current from the phase with the highest
magnitude of current. This is the same signal that is output on J1 pin 5.
TP2 – Heatsink Temperature – This test point provides an analog voltage proportional to the heatsink
temperature, measured in the middle of the heatsink. This output is scaled at 10°C per volt.
TP3 – Common – This test point provides convenient access to amplifier common (ground).
TP4 – Command Phase A – This test point is connected to user Command Phase A voltage. The voltage
at this pin is scaled to ¼ of the Command Phase A input voltage.
TP5 - Command Phase B– This test point is connected to user Command Phase B voltage. The voltage at
this pin is scaled to ¼ of the Command Phase B input voltage.