PD200X4 V2 Manual
15
Modified 13/01/2021
Signal
Pin
Function
Inputs
1, 2, 3, 4
Input for channels 1, 2, 3, 4 (+/-15V max)
Voltage Monitor 5, 6, 7, 8
Voltage monitor for channels 1, 2, 3, 4. Gain = 1/20 V/V
Current Monitor 9, 10, 11, 12 Current monitor for channels 1, 2, 3, 4. Gain = 1 V/A
Disable
13
A voltage b3V and +24V shuts down the amplifier
Fault
14
+5V when a fault occurs on any channel
Temp
15
Internal heatsink temperature
Ground
Shield
Ground for all signals
Table 7. Auxiliary signals pinout
14
Voltage Limits
The output voltage range can be restricted to an arbitrary positive and negative value using two
potentiometers on the front panel. To set the voltage limit:
Remove loads connected to the outputs
Apply a 100-Hz sine wave to the input of channel 1 with an amplitude that covers the full range
of the amplifier. For example, with a 0V to +200V model, apply a 0V to +10V input.
Measure the output voltage of channel 1 with an oscilloscope and confirm the full voltage
range is achieved. If there is any clipping of the sine wave, the voltage limits may have already
been set, and may need resetting by winding the potentiometers in the direction of the
arrows.
To limit either the negative or the positive voltage, turn the potentiometer in the opposite
direction to the arrow, until the voltage is limited to the desired level.
