ZIEHL-ABEGG ECblue MK090 I Series, Assembly Instructions Manual

Page: 23 / 35

5.11 Open-Collector output “ A1 ” (status / tacho)
Open-Collector pulse output for status display or speed display.
Status display (function for factory setting)
Depending on the operating state of the device, the output “ A1 ” is switched to
GND potential for a certain number of pulses.
The status of the device can be displayed by this digitally coded signal.
With the output voltage
“ +10 V ” a standard LED / low-power LED can be
controlled by using a pull-up resistor.
This lights when the output
“ A1 Status Out OC ” (OC = Open-Collector) is on GND
potential.
The details of which pull-up resistor needs to be used depend on the speci
fi
cation
on the LED that is used.
Explanation of
fl ash codes Diagnostic / Status Out with fl ash code.
Pull Up
10V A1
GND
06.11.2013
i_ecblue_a1_status_oc.eps
200...300 Ω
Tacho out
Alternatively, via output “ A1 ” , the current motor speed can be output.
The frequency (duty cycle 50 : 50) that can be measured by a pull-up resistor at
the output
“ A1 ” corresponds to the motor speed.
Example: 10 Hz x 60 = 600 rpm
Pull Up
10 V
A 1
GND
Hz
n = f x 60
5 kΩ
06.11.2013
i_ecblue_a1_tacho_oc.eps
200...300 Ω
A1 more speci fi cations Technical data!
5.12 Open-Collector output “ A2 ” (operation)
Via the output
“
A2 Operation Out OC
”
an operating indication is possible.
With the output voltage “ +10 V ” a standard LED / low-power LED can be
controlled by using a pull-up resistor.
This lights when the output
“ A2 Operation Out OC ” (OC = Open-Collector) is on
GND potential.
By fault the output
“
A2
”
is switched to GND potential.
The details of which pull-up resistor needs to be used depend on the speci fi cation
on the LED that is used.
Pull Up
10 V A 2
GND
06.11.2013
i_ecblue_a2_operation_oc.
200...300 Ω
5.13 Potential at control voltage connections
The connections for the control voltage (< 30 V) relate to the common GND potential (exception: relay
contacts are potential-free). There is a potential isolation between the connections for the control
voltage and the PE conductor. It must be ensured that the maximum external voltage at the con-
nections for the control voltage cannot exceed 30 V (between the
“ GND ” and “ PE ” conductor
terminals). A connection to the PE conductor potential can be made if required; fi t a bridge between
the “ GND ” terminal and the “ PE ” connection (terminal for shield).
Assembly instructions ECblue Electrical installation
L-BAL-F056-GB 1939 Index 003 Part.-No. 00700562-GB
23/35