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Trip Amplifier 2/209
Hardware description
3.4
Commissioning
The following checks are recommended prior to start-up.
1. Output relay: observe the voltage and current ratings of the relay or electronic
output.
2. Input
–
Ensure that the measuring circuit is not subjected to overvoltages.
–
Check the input connections and the corresponding jumper setting if the factory
setting is not required.
–
For multiple analog inputs check that galvanic isolation is used where
appropriate (e. g. if several signals are also transmitted to another multiple input
device).
3. Power supply: check the supply voltage (see section "Technical data")
nn
T
Most device settings will be carried out in Software. Check the setting using the
parameter list. This can be addressed via the PC menu
Example
PC menu (details see disk)
Place jumper X5 in position 4–5 for programming.
Connect the device to COM1 or COM2 RS 232 serial data links on your PC. Set your PC
MENU to COM1 or COM2 accordingly via <ALT><C>.
Use the command <ALT><U> to read all data from the device and then printing it
(1 A4 page)
1. LOAD DATA from the device (<ALT><L>).
2. Check constants (<F4> ... <ESC>).
3. Check the program (<F5> ... <ESC>).
Before attempting any changes the old parameters should be stored on disk using
<ALT><W> (see PC HELP TEXT). After effecting the changes these must be stored in
the device using <ALT><S>. Again a back-up copy on disk or WINCHESTER under a
suitable file name is recommended.
After these checks the unit can be plugged into its rack position. Devices are calibrated
ex works. Recalibration is therefore not normally required (see section "Calibration").
A simple functional test can be carried out as for conventional trip amplifiers by
connecting input signal sources to check the relays trip at the setpoint.
4 digits plus sign, status line with one alpha
character plus 2 numerals
EN
13
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