JUMO 202550 Operating Instructions Manual page 99

Term Parameter Explanation
Pull-in Ond
delay
Pulse frequency Fr
Pulse frequency C211
controller
Pulse width tr
Pulse width C211
controller
The time required for the corresponding relay contact to be
activated when the switching condition is fulfilled. Brief
excursions above or below the setpoint will be ignored by the
controller.
Maximum pulse frequency (only for a pulse frequency
controller)
The value selected is determined by the technical requirements
of the equipment operated by the controller (solenoid valves,
dosing pumps etc.).
The value is limited by the minimum pulse width:
Pulse frequency [1/min]< (60 / minimum ON time [sec])
The repetition rate of the pulses depends on the output level
and the controller parameters: proportional band Pb,
derivative time dt, reset time rt, pulse frequency Fr and
output level limits Y1 or Y2.
The output signal from a pulse frequency controller can, for
instance, be used to operate magnetic dosing pumps.
For pulse frequency control, otherwise as minimum ON time
The width of the pulses depends on the output level and the
controller parameters: proportional band Pb, derivative time
dt, reset time rt, pulse period CY and output level limits Y1
or Y2 .
The output signal from a pulse width controller can, for
instance, be used to operate solenoid valves.
33 Glossary
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