ZENITH 140 INSTRUCTION MANUAL
92
When a relay is being used for a pump by time function, then the sixth
parameter will determine the maximum time the pump will be allowed to
run before it is switched off and the next pump takes over.
P215, P225, P235, P245, P255, 265 - Relay Setpoint 3
This parameter determines the Maximum Time the pump will be allowed to
run before being switched “OFF” and is entered in minutes.
The pump will switch off either at its “OFF” level Relay Setpoint 2 (P214,
224, 234, 244, 254) or its Maximum Run Time Relay Setpoint 3 (P215,
225, 235, 245, 255), whichever occurs first.
P219, P229, P239, P249, P259, 269 - Relay Max.Rate
This parameter will allow a pump or general control relay to be switched
at a pre-determined Rate of change of Level, irrespective of the “ON” level
setpoint P213, 223, 233, 243, 253, 263. Once a pump or general control relay
has been switched “ON” by the pre-determined Rate of Change, it will
remain energised until the level reaches the “OFF” level setpoint P214, 224,
234, 244, 254, 264.
Max. Rate is entered in Measurement Units (P104) per minute and can be
entered as either positive (increasing level) or negative (decreasing level)
values.
Common Relay parameters
P216, 226, 236, 246, 256, 266 – Relay Allocation
This parameter determines which input the relay will act on. You can set it to
the transducer (default), or the optional auxiliary (current) input, or an
average of the two. In most cases, this will not need to be changed from the
default.
To Next Page
Loading...
Need help?
General