Siemens SIRIUS 3RW55 - Monitoring

Functions
7.18 3RW5 HMI High Feature
SIRIUS 3RW55 soft starter
160 Manual, 08/2018, A5E35630887002A/RS-AB/002
7.18.5
Monitoring
7.18.5.1
Monitoring the measured values of the 3RW55 soft starter with the 3RW5 HMI
High Feature
Operating principle
The measured values are provided by the respective device functions. All measured values
are stored in the measured value memory which is not secure against voltage failure. These
values can be read out and evaluated by the 3RW5 HMI High Feature. You can specify up to
5 measured values, which are then shown on the status display.
Requirements
● You are in menu "Monitoring > Measured values".
Procedure
The "Phase currents (%)", "Phase currents (rms)", "Line-to-line voltages [V]" and "Power"
menus contain items which you can access by pressing "OK".
Measured value
Display
Description
Phase currents [%]
• I L1
• I L2
• I L3
• Average
The phase currents are displayed as a
percentage. You can monitor each phase
(L1/L2/L3) individually, or the average of all 3
phases.
Phase currents (rms)
• I L1
• I L2
• I L3
• Average
• I L1...I L3 max.
The phase currents are displayed in amperes.
You can monitor each phase (L1/L2/L3)
individually, the average of all 3 phases, or
the maximum value of each phase.
Asymmetry The maximum deviation of one phase current
relative to the average value of all 3 phase
currents.
Line-to-line voltages [V]
• U L1-L2
• U L2-L3
• U L3-L1
• Average
The motor voltage is shown in Volts. You can
monitor the respective motor voltage of each
phase as well as the average of the motor
voltage.
Power
Active power PL1..3
Indicates the current active power.
Power factor L1..3 Indicates the current power factor.
Torque
-
Line frequency
-