Table 8 Diagnostic Leds - Vaisala PR-23 Series User Manual

PR-23 Series User Guide
Table 8 Diagnostic LEDs
LED
Front panel
Green LED
Transmitter processor card PR‑10500
2 yellow LEDs
Transmitter motherboard PR‑10600
Yellow LED (D17)
Green LED (D16)
Green LED (D26)
2 green LEDs (D23, D25)
H1 interface card PR‑10701
Green LED (LD1)
Green LED (LD1)
Red LED (LD2)
Red LED (LD2)
Green LED (LD3)
Green LED (LD3)
Red LED (LD4)
Red LED (LD4)
A lit red LED on PR‑10701 always indicates a problem. Red LEDs are always turned off in
normal operation, whether any sensors are connected or not.
90
Status Indication
Lit DTR power is on; processor card
PR‑10500 is active.
Blinking Processor card OK.
Blinking Motherboard processor working.
Lit Processor card converts 24 V / 3 V.
Lit Isolating DC / DC conversion OK.
Lit Corresponding relay (RLY1 / RLY2)
has power.
Lit Sensor A current correct,
20 ... 60 mA.
blinking Sensor A is being reset.
Blinking Sensor A current is too high and
the card is trying to reconnect with
correct current.
Lit Sensor A current is too high and
power supply to Sensor A has been
switched off.
Lit Sensor B current is correct,
20 ... 60 mA.
blinking Sensor B is being reset.
Blinking Sensor B current is too high and
the card is trying to reconnect with
correct current.
Lit Sensor B current is too high and
power supply to Sensor B has been
switched off.
IM-EN-PR23-E
See section
Blank display
(page 88)