Dosage; Dosage Contacts Su/Si - Applied Precision RS 2130 User Manual

The SU/SI output of the device can be used for performing time or energy dosage in combination with
a power source, as used during so-called 'dial-tests' or 'register tests' of electricity meters.
SU and SI are passive relay contacts, which can be used to control the switch-on and switch-off of
voltages and currents of the power source in a meter test bench. They can be steered directly by
commands or by the reference meter during dosage functions. The contacts are normally closed in all
functions except during dosage function, where they are opened at start and closed at the end,
depending on the defined initial and end status of the contacts.
SU and SI are potential free contacts located on device in Control connector. During energy and time
dosage operations are these contacts used to control a power source or to control the switching of
current and voltage.
output pulses (RS485 levels)
INx ... input TTL signals
OUTx ... output TTL signals
IMPx ... output impulses: RS485 levels
GND ... TTL signals ground
SUx ... voltage dosage contacts (max. 125V,1A)
SIx ... current dosage contacts (max. 125V,1A)
(Note: all pins galvanically isolated:
optical and relay isolation)
46

5.18 Dosage

5.18.1 Dosage contacts SU/SI

Loading capacity of the contacts: max. 125V, 1A
Udosage relay
Idosage relay
RS-UG91-EN
Reference Standard RS 2x30, RS 1x30
OUT0
IMP+
OUT1
IMP-
OUT2
IN0
OUT3
IN1
SU1
IN2
SU2
IN3
SI1
GND
SI2
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