Relay Wiring Test; Relay Activation - Siemens HydroRanger 200 HMI Operating Instructions Manual

2.8.1.6. OFF Setpoint
Sets the process point at which the relay is de-activated.
2.8.1.11. Relay Logic
Affects relay reaction. Reverses the logic (normally-open to normally-closed or vice
versa).
2.8.2.3. Relay Fail-safe
Changes how individual relays react to a failsafe condition on the instrument.

Relay wiring test

3.2.5. Relay Logic Test
Checks the application wiring by forcing a relay control function, such as a level alarm or
pump control setpoint. Ensure all the relay programming and wiring works properly.
Please verify that ON and OFF respond correctly. Use this parameter as a final test once
all of the relay programming is done.

Relay activation

The flexibility of the relay functions ensures that the HydroRanger 200 HMI can support
relay wiring for different systems and applications. Use the following as a guide to the
most common parameters.
Relay setpoints and functionality
The setpoint can be an ON or OFF setpoint related to a process variable, or a timed
setpoint based on interval and duration.
Functions affected by setpoint are configured by parameters that determine the
application requirements such as timing.
function requirements. Other function parameters:
2.8.2.8. 1 . Delay Between Starts
•
2.8.2.8.2. Power Resumption Delay
•
2. 1 0. 1 .3. Relay Duration
•
Relay logic is modified
Normal operating conditions mean that alarm relays are energized and pumps are de-
energized. This can be reversed using
Page 68 HydroRanger 200 HMI – OPERATING INSTRUCTIONS
2.8.1.4. Relay Function
2.8. 1 . 1 1. Relay Logic
.
(page 141) sets the
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