6.5.13 Timer description - reciprocating compressors
1. Start-start delay
States the number of seconds that must pass before the compressor can be restarted after a
start. If the compressor stops before the timer has reached 0, the timer will block restart.
1. For compressors configured with Rotatune=No, the timer can be set down to 600 sec-
onds
2. For compressors configured with Rotatune=Yes, the timer can be set down to 60 sec-
onds
2. Stop-start delay
States the number of seconds that must pass before the compressor can be restarted after
stop. This function is not used in Manual mode.
3. Start delay
When Unisab III is in Automatic or Remote, the compressor start will be delayed for the sta-
ted number of seconds.
4. Stop delay
When Unisab III is in Automatic or Remote and the compressor is at its lowest capacity stage,
the timer will start counting down and stop the compressor at 0.
5. Suction ramp
This timer indicates how fast the compressor is allowed to lower its suction pressure 1°C/R. If
the value is set for 0, this function will be disabled.
6. Delay up
Indicates the time that passes between the loading of stages at increasing capacity in Auto-
matic or Remote mode.
7. Delay down
Indicates the time that passes between the unloading of stages at decreasing capacity in Au-
tomatic or Remote mode.
8. Take-over max.
Only used in connection with Multisab. See the Unisab III sequence manual.
9. Take-over delay
Only used in connection with Multisab. See the Unisab III sequence manual.
10. Intermediate pressure low
During start-up the alarm for low intermediate pressure is delayed for the stated time. No de-
lay during normal operation.
Set-up
Engineering manual - Unisab III 1.10
001930 en 2014.09
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