LENZE EVF9337-EV EVF9337-EV EVF9337-EV EVF9337-EV EVF9337-EV EVF9337-EV

Short-circuit detection is not possible for low output values. The output voltages must
therefore be under -0.1 V or over +0.1 V.
Wire break detection
The diagnostics for wire break can be configured for the current output type. Wire break
detection is not possible for low output values; the output currents must therefore be below -
0.2 mA or above +0.2 mA.You specify the properties of the digital on-board I/O during parameter assignment with
STEP 7 (TIA Portal). The tables below list the parameters that can be set for inputs and
outputs, respectively.
When parameters are assigned in the user program, they are transferred to the digital onboard
I/O via data records with the WRREC instruction, see section Parameter assignment
and structure of the parameter data records of the digital on-board I/O (Page 156).
The use of a digital input by a technology channel
When a digital input is in use by a technology channel (HSC, PTO or PWM) the
corresponding digital input channel remains fully usable without any restriction.
Use of a digital output by a technology channel
When a digital output is in use by a technology channel (HSC, PTO or PWM), the following
restrictions apply to the use of the corresponding digital output channel:
● Output values for the digital output channel are not effective. The output values are
specified by the technology channel.
● The CPU STOP behavior configured for the digital output channel is not effective. The
reaction of the output to CPU Stop is specified by the technology channel.
● With activated value status (Quality Information) for the DI16/DQ16 submodule, the QI bit
for the digital output channel shows the value 0 (= Status "Bad").
● The current state of the digital output is not returned to the process image output. In the
PTO operating mode, you can only observe the switching operations of the assigned
digital outputs directly at the output. In the PWM operating mode and with high-speed
counters (HSC), you can observe the current state additionally via the feedback interface.
Note, however, that high frequencies may no longer be observed under certain
circumstances due to an excessively low sampling rate.When the digital output is controlled by a technology
channel (HSC, PTO or PWM), this parameter is
not effective. In this case, the technology channel
specifies the reaction of the digital output to CPU
STOP.
• Turn off
• Keep last value
• Output substitute value 1
Turn off Yes
1) All parameters can be set for on a channel-specific basisEach port has a LINK RX/TX LED. The table below shows the various "LED scenarios" of
the CPU ports.
Table 6- 2 Meaning of the LED
LINK TX/RX LED Meaning
LED off
There is no Ethernet connection between the PROFINET interface of the PROFINET device
and the communication partner.
No data is currently being sent/received via the PROFINET interface.
There is no LINK connection.
LED flashes green
The "LED flashing test" is being performed.
LED lit green
There is an Ethernet connection between the PROFINET interface of your PROFINET device
and a communication partner.
LED flickers yellow
Data is currently being received from or sent to a communications partner on Ethernet via
the PROFINET interface of the PROFINET device
The following tables explain the meaning of the status and error displays. Corrective
measures for diagnostic alarms can be found in the section Interrupts and diagnostics of the
analog on-board I/O (Page 119).No voltage or voltage too low. • Turn on the CPU and/or the system power
supply modules.
Flashes Off
Analog on-board I/O starts up and flashes until
valid parameter assignment.
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On Off
Parameters have been set for the analog onboard
I/O.
On Flashes
Indicates module errors (at least one error is
present on one channel, e.g. wire break).
Evaluate the diagnostics and eliminate the error
(e.g. wire break).During ramp-up, the firmware of the CPU checks the consistency of the calibration data of
the analog on-board I/O stored by the SIEMENS production. The yellow MAINT LED lights
up if the firmware detects an inconsistency (e.g. an invalid value) or missing calibration data.
The MAINT LED is located next to the red ERROR LED on the analog on-board I/O.
Note that the MAINT LED on the analog on-board I/O is only intended for troubleshooting by
SIEMENS. In normal conditions, the MAINT LED should not light up. However, if this is the
case, please contact SIEMENS "mySupport" on the Internet The figure below shows the LED displays (status and error displays) of the digital on-board
I/O. Corrective measures for diagnostics alarms can be found in the section Interrupts and
diagnostics (Page 119).The following tables explain the meaning of the status and error displays.
RUN/ERROR LED
Table 6- 5 RUN/ERROR status and error displays
LED Meaning Remedy
RUN ERROR
Off Off
No voltage or voltage too low. • Turn on the CPU.
• Check whether too many modules are inserted.
Flashes Off
Digital on-board I/O starts up.
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On Off
Digital on-board I/O is ready for operation.
On Flashes
A diagnostics interrupt is pending. Supply voltage
missing.
Check supply voltage L+.For information on the topic of "Interrupts", refer to the STEP 7 (TIA Portal) online help.