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4. Function
4.1. Operation and operating modes
4.1.1. Status LEDs
The EMM visualizes the operating states
with total five (5) LEDs. The function of the
LEDs depends on the NAMUR
recommendation NE 44.
After the rated surge supply voltage is
applied, all LEDs light up once as LED test.
The general device status is displayed with
a green LED.
An internal or external error (process
error: overcurrent, asymmetry, phase
failure) is signaled with a red LED. The
device is then switched off safely.
Error acknowledgement is necessary for
exiting this state (external error).
All internal errors cannot be
acknowledged and are saved in
flash.
The device then cannot be put
into operation again.
The left or right rotation of the drive is
displayed with a yellow LED.
4.1.2. Error acknowledgment
There are four error acknowledgement
options:
• Manual (reset button):
An acknowledgement is triggered by actuating the reset button on the front side of the device. After
approx 2 s, the reset button is actuated again and the EMM again has an error.
• Manual (remote acknowledgement):
A remote acknowledgement operating point can be realized with a connection of a button (N/O contact)
to IN4. Acknowledgement is triggered as soon as a positive edge is detected at the input. If a negative
edge is not detected after approx 2 s, the EMM has the error again since possibility of a manipulation
or a defect in the acknowledgement circuit cannot be ruled out.
• Manual (software): Operating software can be used for acknowledgement.
• Automatic: Automatic acknowledgement can be parameterized for certain errors.
4.1.3. Feedback
All unused outputs of the EMM are present for feedbacks. The behavior of the feedback outputs is
determined by means of parameterization.
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LED PWR
Device status
(green)
Off
No supply voltage (rated control supply
voltage).
On
Supply voltage (rated
control supply voltage) present
LED DAT
Communication
(green)
Off
No data traffic.
On
Cyclic data traffic
Flashing
Acyclic data traffic
LED ERR (red) Device or process error
Off
No error
Permanently on Internal device error
Flashing
External error in the activation or the
periphery. (Maintenance requirement,
NE 44, see "Error acknowledgement")
LED L (yellow)
Process messages
LED R (yellow)
Off
No message present
Permanently on Drive switched on:
Left rotation (L) or right rotation (R)
Both flashing
There is a message
4.2. Parameterization
The provided configuration software CONTACTRON-DTM-IFS is required to "parameterize" and
"visualize" the EMM. The USB programming adapter IFS-USB-PROG-ADAPTER (Order No.: 2811271)
is also required.
Use of the configuration software for:
• Display and recording of operating data for further processing in databases.
• Definition of switching output types, such as:
digital outputs without switching function, direct starter, reversing starter, star delta starter, circuit
breaker, dual-speed starters, etc.
Inputs IN1 to IN3 are specifically assigned to functions (motor function or digital output).
Input is specifically assigned to remote reset.
4.2.1. Configuration, settings: Switching output, inputs static
Digital outputs: Inputs IN1...IN3:
No function (logical link on request)
Input IN4:
Reset
Outputs O1...O4:
Freely parameterizable
Direct starter:
Input IN1:
Start / Stop
Input IN2...IN3:
No function (logical link on request)
Input IN4:
Reset
Output O1:
Contactor start / stop
Outputs O2...O4:
Freely parameterizable
Reversing
Input IN1:
Right
starter:
Input IN2:
Left
Input IN3:
No function (logical link on request)
Input IN4:
Reset
Output O1:
Right contactor
Output O2:
Left contactor
Outputs O3...O4:
Freely parameterizable
Star delta:
Input IN1:
Start / Stop
Input IN2...IN3:
No function (logical link on request)
Input IN4:
Reset
Output O1:
Mains contactor
Output O2:
Delta contactor
Output O3:
Star contactor
Output O4:
Freely parameterizable
Star delta
Input IN1:
Right
reverser:
Input IN2:
Left
Input IN3:
No function (logical link on request)
Input IN4:
Reset
Output O1:
Mains contactor (right)
Output O2:
Mains contactor (left)
Output O3:
Delta contactor
Output O4:
Star contactor
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