Series 642
TROUBLE SHOOTING
605593EC
Edition 2017-11-24
85/113
6
Trouble shooting
Failure
Check
Action
No dots lighted on display
-
24 V power supply ok?
-
Connect valve to power supply according to
«Electrical connection» and make sure that power
supply is working.
Module Status LED is off
-
DeviceNet
®
power supply
ok?
-
Connect valve to DeviceNet
®
according to
«DeviceNet
connection» and make sure that
power is provided.
Module Status LED is flashing
green
-
The controller needs commissioning due to
missing, incomplete or incorrect configuration.
Module Status LED is flashing
red
(recoverable fault)
-
Refer to ODVA
specification volume II,
release 2.0 (incl. errata
1) «IDENTITY OBJECT,
figure 6.2, state event
matrix for identity object»
-
Refer to ODVA specification volume II, release 2.0
(incl. errata 1) «IDENTITY OBJECT, figure 6.2,
state event matrix for identity object»
Module Status LED is red
(unrecoverable fault)
-
Refer to ODVA
specification volume II,
release 2.0 (incl. errata
1) «IDENTITY OBJECT,
figure 6.2, state event
matrix for identity object»
-
Refer to ODVA specification volume II, release 2.0
(incl. errata 1) «IDENTITY OBJECT, figure 6.2,
state event matrix for identity object»
Network Status LED is off
(Device is not on line)
-
DeviceNet
®
power supply
ok?
-
Connect valve to DeviceNet
®
according to
«DeviceNet
connection» and make sure that
power is provided.
Network Status LED is flashing
green
(on line but no connections in
the established state)
-
Allocate device to master
Network Status LED is flashing
red
(time out)
-
Are I/O connections in the
time out state?
-
Reestablish I/O connections.
Network Status LED is red
-
Failed communication device. The device has
detected an error that has rendered it incapable of
communicating on the network.
Controller does not respond to
DeviceNet
®
commands
-
Node number and
baudrate correct?
-
Proceed according to «Setup procedure,
DeviceNet
®
CONFIGURATION».
Controller does either not
respond or respond in an
unexpected way to DeviceNet
®
commands
-
Configuration correct?
-
Send FACTORY RESET and redo complete
configuration. Refer to «Explicit messaging control
commands, FACTORY RESET» and «Setup
procedure, DeviceNet
®
configuration» for details.
Read back from contoller is
wrong during polling
-
Check poll rate
-
Refer to «Setup procedure, DeviceNet®
configuration» for details.