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Troubleshooting
LED Indications
NETWORK MODULE
(OFF)
Siemens Apogee P1 Communications Interface
Cause/Symptom
No power at the drive.
Technology Box/Option not installed
correctly.
Hardware fault.
HVAC10 Size 1 WARNING:
Remove the terminal cover and the
Technology Box whilst connected to
see the drive's HEALTH and RUN
LEDs.
BEWARE OF ELECTRIC SHOCK.
The self-test has failed.
Incorrect Technology Box/Option
fitted or selected.
Set-up fault. A TEC OPTION
parameter is out-of-range.
NOT READY/DISABLED:
Initialising.
IDLE:
No data is being received from
Network Control Module.
SOFT TIMEOUT:
Drive not addressed in the last 10
seconds.
OK
Remedy
Check and apply power to the drive.
Check connections between Technology
Box/Option and drive. On the HVAC10 Size 1,
check the ribbon cable.
If HEALTH and RUN LEDS are OFF, replace the
drive, else replace the Technology Box/Option.
Replace the Technology Box/Option.
Fit the correct Technology Box/Option or select the
matching value for the TYPE parameter in the TEC
OPTION function block. (TYPE = RS485).
Select the correct value for the parameter in the
TEC OPTION function block.
If this condition persists for longer than 10 seconds
check wiring to RXA and RXB terminals. It may be
transposed.
Enable the PLC/SCADA application program.
Check that switch SW1:1 is ON, i.e. selected for 2-
wire operation.
Check power for all equipment on the network,
e.g. RS232 to RS485 converter or repeater.
Check the PLC/SCADA program is running.
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