User Manual EA4709 / EA4718
ElectroCraft
®
E-Mail: [email protected] www.electrocraft.com May 2009
32
7.2 Digital
Outputs
/Error: Monitoring Output
Whenever a system failure occurs (i.e. overtemperature or hall error), the
/Error
output
responds (LO position), and the green LED on the front panel is switch off. The drive output
stage is switched off and the error will not reset until the user resets the drive by switching
the enable input. If the error occurs again the problem still exists.
The output is applicable in three different modes:
A) As Open-Collector, LO active, TTL-compatible or up to +30 V industrial logic.
B) As Push-Pull output with an output impedance = 50 Ohm, when connecting the
upper voltage signal to input
Verror
. With
Verror
= +24 V, an SPS with
photocoupler inputs can directly be controlled.
C) Together with a bridge between the
+5V
output and
Verror
input, applicable as
Push-Pull-output for a connection to TTL or CMOS-Logics without external upper
voltage signal.
Additional information about the schematic refer chapter 3.2.
Range of Output Voltage
0.6 V –(
Verror
– 0.6 V) with
Verror
= +5 V to +30 V
Output Impedance
50 Ohm
Permanent Output Current
100 mA max., source and sink
Note:
The logical state of this output is clearly visible by the green
Power /Error
LED on
the front panel.
