Inverter Ready" Led; Weld Time" Led; Max. Pulse Width Reached" Display; X21 Pin Assignment - Bosch PSU 5000 Series Instructions For Assembly And Operation Manual

Monitoring and
diagnostics

7.1 "Inverter ready" LED

7.2 "Weld time" LED

7.3 "Max. pulse width reached" display

7.4 X21 pin assignment

7---2
PSU 5000 / PSG 3000
Instructions for Assembly and Operation
The LED is lighted when
-- no inverter fault message is active
-- the "Stop current" input signal is not active. The function of "Stop current" cor-
responds to an inverted "external enable" signal.
0V at X21/pin 6:
+24V at X21/pin 6:
The LED is lighted when
-- 5 kHz firing pulses arrive from the timer (at X5, pins 6 and 7), or
-- the "weld time" input signal (at X22, see Section 8) is high
The decimal point of the seven--segment display is lighted when
-- the maximum pulse width is reached. In control operation, this display appears
only when the commanded current cannot be reached. In this case, the inverter
must have worked at the limit for at least 5 consecutive mains cycles.
Please note: The inverter continues working despite this display. It is not switched
off!
up to 10 m: 0.75 mm
X21
up to 75 m: 1.5 mm
1
2
3
4
5
6
7
8
For the encoding of outputs A1 to A4, please refer to page 7--5.
output stage is switched on
output stage is blocked.
2
2
O1
O2
O3
O4
ext. reset
Stop Current (+24V: output stage blocked)
0 V Voltage supply for signal outputs
(24V, max. 2A)
+24V
all inputs: 24 VDC, 20 mA
all outputs: 24 VDC, max. 100 mA
Signal outputs for
fault code (e.g. for
evaluation by a
PLC)
1070 078 224--- 108