MKS PR 4000 F, Instruction Manual

Page: 47 / 69

PR4000F Chapter 4: Operation
39
4.9 Limit switches and relays
The two relays on the hardware may be assigned flexible to the channels and different signal
sources. The logic of the limit switches is configurable and also is the hysterisis (i.e. dead band). A
switch delay is not available.
The PR4000F provides 5 modes of trip limit operation:
SLEEP
In this mode the trip limits are not active.
LIMIT
In LIMIT mode the signal L is triggered if the actual input is below LL and the signal U is triggered if
the actual input is above UL.
BAND
In BAND mode the signal L is triggered if actual input is below set point minus LL.
And the signal U is triggered if actual input is above set point plus UL.
MLIMIT
Same as Limit mode but including memory capability. The memory can be reset with RESET .
MBAND
Same as Band mode but including memory capability. The memory can be reset with RESET .