Outputs; With Monitoring; Weld Enable; 7.1.10 Digital Pressure Input - Bosch Rexroth PSI 6 757 Serie Typspezifische Anleitung

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Features
7.1.7

Outputs

• Output O21 "Warning limit consecutively violated" will be set if the
corresponding error occurs and stays high until the reset of the error.
• Output O22 "Proportional valve pressure reached" is a reflection of the discrete
Input "Pressure input 24VDC".
• Output O24 „Phase monitoring" will be set, if the tolerance of the intermediate
circuit voltage is exceeded.
• The outputs O25 "Overcurrent on primary side", O26 "Current sensor error",
O27 "Voltage sensor error" and O29 "Inverter Overtemperature" will be set if the
corresponding errors occur and stay high until the reset of the respective error.
• Output O26 "Current sensor error" will be set, if:
- Measuring loop is open
- Short circuit of measuring loop
- Error "current to small" occurs
- Error "current to small consecutively" occurs
- Error "No current l" occurs
- UI-regulation:
- a contact time violation occurs
- a measuring circuit error occurs
- a reference curve error occurs
• Output O27 "Voltage sensor error" will be set, if V/C-Measuring is switched on
and the measured voltage is below the limitation.
• Output O30 "Spot selection error" will be set, if the selected spot does not
correspond to a program.
The output "Spot selection error" is also set, if via the spot selection a program
will be addressed which has sequence off. The output is set at the start of the
relevant spot/program.
7.1.8

With monitoring

Output "With monitoring" will be set, if the monitoring of the current sensor is
active and the monitoring of the voltage sensor is active and the adaptive
monitoring is active.
7.1.9

Weld Enable

If the input "Weld Enable" is low during the start of a sequence of a welding
program with active weld, an error message occurs. The execution of the
sequence is not possible.
If the Input becomes low during the sequence, the sequence is continued.
Exception:
If the timer wait during the sequence of a weld program with active weld in the
squeeze time on a pressure feedback
and the input "weld enable" goes to low in this time,
then the sequence will be aborted immediately and an error message sent.

7.1.10 Digital pressure input

If the pressure input is not high until 5 seconds after „Start", then will be an error
„No weld pressure" generated.
R911332355 | PSI 6xxx.757