Relay-Related Parameters - Siemens HydroRanger 200 HMI Operating Instructions Manual

Operating
7.3 Relays
7.3.7

Relay-related parameters

Some parameters affect how relays react during normal conditions:
Setpoint
ON and OFF
setpoints
Preset Applica-
tions (2.8.1.3.)
(Page 194)
Relay Function
(2.8.1.4.)
(Page 195)
ON Setpoint
(2.8.1.5.)
(Page 197)
OFF Setpoint
(2.8.1.6.)
(Page 197)
Relay Logic
(2.8.1.11.)
(Page 199)
Relay Fail-safe
(2.8.2.3.)
(Page 201)
Relay wiring test
98
When a setpoint is reached, the corresponding action is taken. The setpoint can
be an ON or OFF setpoint related to a process variable.
Sets the process point at which the relay is activated (ON setpoint) then reset
(OFF setpoint). These setpoints are set separately for each pump within each
pump control, and for each alarm type.
Sets the device to a preset application. These preset applications quickly set up
the device with a minimum number of parameters.
Sets the default state differently, depending on whether the relay is programmed
as an alarm or a control. The alarm function de-energizes the relay coils. During
normal operation (no alarms), the relay coils are energized. The control function
energizes the relay coils. When the instrument is at rest (no controls operating)
the relay coils are de-energized.
Sets the process point at which the relay is activated.
Sets the process point at which the relay is de-activated.
Affects relay reaction. Reverses the logic (normally-open to normally-closed or
vice versa).
Changes how individual relays react to a fail-safe condition on the instrument.
Relay Logic Checks the application wiring by forcing a relay control function,
Test (3.2.7.) such as a level alarm or pump control setpoint. Ensure all the
(Page 255) relay programming and wiring works properly.
Verify that ON and OFF respond correctly. Use this parameter
as a final test once all of the relay programming is done.
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC