13
5.1. General
Errors (”Errxxx“ or ”Error Exxx“) always causes to shut-down of the TMP, the fan, the heating
and the backing pump.
➡
After the error is removed depress key
.
–> The unit is again ready to operate.
Warnings (”Wrnxxx“ or ”Warning Fxxx“) are only displayed and do not cause components to be
shut down.
5.2. Errors During Self-Testing
The following errors can occur during self-testing performed when the DCU is switched on:
4.7. LED Display
The red LED (error status) and green LED (operations status) on the front panel can take on the
following conditions:
Red LED
Illuminates:
Collective error messages
Flashes:
Warning
Green LED
Illuminates:
Mains power unit OK, pumping station ON
Flashes:
Mains power unit OK, pumping station OFF
Blinks:
Mains power failure
4.8. Serial Interface
The serial Interface RS 485 is only used for connecting the pump controller at the vacuum pump.
The description of the interface protocol you can find in the operating instruction PM 800 488 BN.
5. Error Codes
D
Diissp
plla
ayy
E
Errrro
orr
P
Po
ossssiib
blle
e a
ac
cttiio
on
n
** Error E021 **
•
Wrong pump identification resistance
•
Mains OFF-ON
•
Inform PFEIFFER-Service
** Error E040 **
•
Hardware error: external RAM defective
•
Inform PFEIFFER-Service
** Error E042 **
•
Hardware error: EPROM checksum
•
Inform PFEIFFER-Service
** Error E090 **
•
Insufficient RAM
•
Inform PFEIFFER-Service
•
The DCU is connected to the wrong
•
Connect correct
pump electronic
pump electronic
** Error E698 **
•
The connected drive unit does not respond
•
Check communication lead bet-
ween electronic drive unit and
DCU, switch on electronic drive
unit
Summary of Contents for DCU 001
Page 17: ...17 Notizen Notes ...
Page 19: ...19 ...
