Features; Special Features - Bosch Rexroth PRC 7 00-L /W 1000 Serie Typspezifische Anleitung

36/46 Bosch Rexroth AG | Electric Drives and Controls
Connection / Pin Inputs
XGM1 / 7, 8, 9 Secondary voltage
XGM2 / 5, 6 Analog pressure input
XGM3 / 6, 7 Analog force input
Connection / Pin Outputs
XDS1 / 13, 14 Undervoltage release, Shunt release
XGM2 / 1, 2 Analog pressure output
XGM3 / 5, 9, 10 „ Operate" force sensor
Tab.9: Other outputs
7

Features

Schedule standard 1000 Hz (schedule parameters in milliseconds)
(Details refer to Tab1. Required and supplementary documentation,
Rexroth PRC7000 Process Resistance Welding Control Instructions).
7.1

Special features

The welding controller features the following specifics:
• Timer has been prepared for networking with an Profinet module (on-board)
• Number of electrodes: 32 (electrode no.: 0 to electrode no.: 31)
• The time within the current has to exceed a minimum threshold is adjustable. If
this threshold is not exceeded on average, the sequence is stopped and an
error message occurs.
• The "Stop circuit open / no 24 V" fault is automatically reset.
• The DC link voltage is always verified, the fault message is automatically reset.
• Due to timer-internal routines, the minimal preweld/squeeze time is 16 ms.
• The time within the current has to exceed a minimum threshold is adjustable.
If this threshold is not exceeded on average, the sequence is stopped and an
error message occurs.
When calling up welding programs with electrode numbers 1 through 9, output
KSR selection 1 is simultaneously activated.
When calling up welding programs with electrode numbers 10 through 19, output
KSR selection 2 is simultaneously activated.
When calling up welding programs with electrode numbers 20 through 29, output
KSR selection 3 is simultaneously activated.
For all other electrode numbers, the KSR selection outputs are not changed.
At the end of the squeeze time the discrete input X2.4 is checked. The program
can move on to the weld time when the input becomes high.
The input „ Operate force sensor" status is retransmitted to the analog output
„ Operate force sensor" (X9.1, 0 = 0V, 1 = 10V).
R911404358 | PRC 7x00-Lx/Wx-1000