10. Other information - Cooling
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– WTS-300-E - V4.1 - 20.01.2022
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10.10 Fault messages low pressure (F80)
Based on the setting for low pressure monitoring (section 10.8), a fault message can
also be generated as follows:
Function assignment digital input [A21..A33] => 20 (fault input low pressure)
Parameter [P90] - Setting 1 + 2
- digital pressure switch required
- independent of the low-pressure monitoring
Parameter [P90] - Setting 3..30
If a low-pressure message stands longer than the time set after the finishing of the
low pressure monitoring [P89] with the compressor switched on, fault (F80) is dis-
played.
- digital pressure switch or analogue pressure sensor required
- depending on low pressure monitoring (only possible if [P89] > 0)
10.11 Fault Messages High Pressure (F81)
Via parameter [P91], the signal of an external high-pressure switch can be generated
as fault message.
Function assignment digital input [A21..A33] => 21 (fault high-pressure)
Parameter [P91] - Setting 1 + 2
- independent of the low-pressure monitoring
