ZES ZIMMER LMG450, User Manual

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Z E S ZIMMER Electronic Systems GmbH Chapter 13
261
±
(0.5*error
Hmax
+ 0.02% from H
max
/kHz)
This errors are valid if the amplitude of the harmonics are higher than 0.1% of the full scale
peak value.
Phase error
±
(0.15° + 0.25° / kHz)
This errors are valid if the amplitude of the harmonics are higher than 0.1% of the full scale
peak value.
13.9 Processing signal interface (option L45-O3 )
The processing signal interface can have one or two boards, each with the same inputs and
outputs. The following functional groups are isolated against each other (for details please
refer 14.6, ‘Functional block diagram processing signal interface’). The allowed working
voltage is 25V between the groups. The testing voltage is 500V.
The analogue inputs and outputs have nominal
±
10V signal range, but in fact they are able to
handle 11V resp. 12V.
•
Four analogue outputs with
±
10V. The outputs are updated with each measuring cycle for
normal values. The four analogue outputs have one common ground (AOut_GND) which is
isolated from all other grounds.
•
Four analogue inputs with
±
10V. This values are displayed after each measuring cycle. The
four analogue inputs have one common ground (AIn_GND) which is isolated from all other
grounds.
•
Four digital outputs (open collector outputs). They are updated with each measuring cycle.
The four digital outputs have one common ground (DOut_GND) which is isolated from all
other grounds.
•
Four digital inputs. The four digital inputs have one common ground (DIn_GND) which is
isolated from all other grounds.
•
Two frequency inputs. They can measure frequency and direction of a rotation speed
converter. The two frequency inputs have one common ground which is isolated from all
other grounds but common to the ground of the auxiliary supply (Aux_F_GND). F_In1 is
used to measure the frequency, F_In2 to detect the direction.
•
Auxiliary supply. Here you can get an auxiliary voltage of
±
5V. The ground is common
with the ground of the frequency inputs (Aux_F_GND).