Psu Connection Overview - Bosch PSU 5000 Series Instructions For Assembly And Operation Manual

Electrical
connection

11.1 PSU connection overview

Mains supply
(U1, V1, W1, PE)
X11 - - from PSG:
-- current sensor signal
-- temperature detector
X11 - - from electrodes:
-- electrode voltage
Cooling water
(inlet/outlet;
cf. Section 10.1, "Di-
mensions of PSU" and
10.3, "Cooling")
11--2
PSU 5000 / PSG 3000
Instructions for Assembly and Operation
X5 - - to/from weld timer
-- 5 kHz firing signal
-- temperature contact
-- weld timer power supply
-- 27 VAC synchronization voltage
X12 - - to weld timer
-- transfer of the actual current value with
SSU operation
-- signal response of welding current
X12 - - from weld timer
-- analog input signal for controlling the
inverter (in connection with weld time sig-
nal at X22); cf. Section 8.2
X22 - - from weld timer
-- weld time signal for controlling the in-
verter (in connection with analog input
signal at X12)
X22 - - 24 VDC supply
-- 24VDC input (from external power supply
unit)
X22 - - to fan control
-- 24VDC output (temperature--controlled)
X21 - - to/from PLC:
-- "Reset" signal
-- 24V for I/O
-- "Stop current" signal (ext. enable)
-- binary encoded fault codes
(cf. Section 7, "Monitoring and
diagnostics")
to PSG; heat
(U, V)
1070 078 224- -108