English Operating Instruction
10.6 Set-up of the limit value switch
The limit value switch has to be configured by the software ISpac Wizard. The following scheme illustrates different ways to set-up the thresholds of the relay contacts A and B.
The scheme is an example, other set-ups are possible:
Limit value A
Limit value A - Hysteresis
Limit value B +Hysteresis
Limit value B
Set-up in the ISpac Wizard:
„closes if value > limit value“
„opens if value > limit value“ t
„closes if value < limit value“
„opens if value < limit value“
In case of a detected line fault the relays are de-energized means the contacts are open.
10.7 Reset lockout function
The reset lockout function has to be configured by the software ISpac Wizard. The relay contact is remaining in the working position (i.e. NO contact remains closed) even if the process value is returning to value which is below or above the set point. The reset lockout function avoids that the operator miss a detected threshold event.
Selection
“inactivate”
Description
Default set-up – function disabled
“active - PWRST”
(new with Rev.B
01.04)
“active”
Function as described above. The selected operating mode (“open” or “closes” see chapter 10.6.) is kept even if the trigger is not available. The re-closing lockout function is reset by actuating the
DIP switch LF1 or LF2 (ON-OFF-ON or OFF-ON-OFF) or a short disruption of the power supply.
The limit value contact holds the status defined in chapter 7.6 means e.g. “opens if value > limit value, that the contact opens in case of power supply failure.
Function is only available for operating mode „ opens if value > limit value” or „opens if value < limit value“. The re-closing lockout function is still in place even if the power supply is disrupted.
The re-closing lockout function is ONLY reset by actuating the DIP switch LF1 or LF2 (ON-OFF-
ON or OFF-ON-OFF). The limit value contact opens in any case if a line fault is detected.
11 Operation and operational states
Before commissioning the device, please ensure that:
• the device has been installed in the correct slot and in accordance with the standards
• the device is not damaged
• the cables are connected properly
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