Page 174 - PHU_User Manual_EN_Rev A
P. 174
PHU Series User Manual
External Operation and Status Monitoring
Background The analog control connector can also be used to
monitor the status operation and alarm status of
the instrument.
The pins are isolated from the power supply
internal circuitry by photo couplers. Status Com
(Pin 15), Status Com (Pin 16) and Status Com
(Pin23) are photo coupler emitter outputs, whilst
pins 17 to 22 are photo coupler collector outputs.
A maximum of 30V and 8mA can be applied to
each pin. The Status Com pin is floating with an
isolation voltage of 60V.
Pinout Name and Pin Description
STATUS 15 Common (photo coupler
COM 16 emitter) for status signals 17
23 to 22.
OUT ON 17 Low when the output is on.
STATUS
PWR ON 18 Active low.
STATUS
ALM 19 Low when any of the
STATUS protection modes are tripped.
Active low.
CV STATUS 20 Low when CV mode is active.
CC STATUS 21 Low when CC mode is active.
CP STATUS 22 Low when CP mode is active.
Schematic
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