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7
Monitoring and diagnostics
1070 078 224--- 108
PSU 5000 / PSG 3000
Instructions for Assembly and Operation
ATTENTION!
Danger of injury and/or damage to property through missing or inappropriate inter-
!
pretation of fault messages! If the inverter is not controlled by a Bosch timer it must
be ensured that closing of the floating contact between terminals 4 and 5 or opening
of the connection between terminals 5 and 10 of the X5 terminal connector at the
inverter stops the timer!
The inverter already provides the following functions:
-- Indication of the "inverter ready" state by green LED
-- Indication of the weld time (incoming firing pulses) by green LED
-- Indication of the "maximum pulse width reached" condition by the decimal point
on the seven--segment display "?"
-- Change--over of diode monitoring from 2 diodes per branch to one diode (with
DIP switch)
-- Reset fault messages: external (at X21) or through reset button
-- Indication of fault numbers on the seven--segment display "?"
-- Encoded output of fault messages with output signals (at X21). For encoding,
see section 7.5.
The following partial view of the inverter indicates only those elements which are
relevant for the functions mentioned above. For further elements, please refer to
the "Controlling the inverter" and "Electrical connection" sections.
Monitoring and
Ready message, green LED
Weld time, green LED
Diagnostics display (For an explanation of
the fault messages, cf. page 7- -3)
Max. pulse width
(message per decimal point)
Reset button
Behind the cover:
measuring points,
internal DIP switch banks S1, S2, S3 and
slot for future options
Diode monitoring:
selectable on DIP switch bank S1,
switches 6 and 7
X21: ext. reset, ext. enable, fault code (to
PLC), internal voltage supply output (24
VDC, max. 2A)
diagnostics
7---1
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