Operating Instructions
Table Of Contents
- 1. Siemens BT300 - Startup
- 2. Keypad of the drive
- 3. Siemens Application
- 3.1 Specific functions of the Siemens application
- 3.2 Example of control connections
- 3.3 Application - Quick setup parameter group
- 3.4 Monitor group
- 3.5 Application parameter lists
- 3.5.1 Parameter programming
- 3.5.2 Column explanations
- 3.5.3 Group 3.1: Motor settings
- 3.5.4 Group 3.2: Start/Stop setup
- 3.5.5 Group 3.3: Control reference settings
- 3.5.6 Group 3.4: Ramp & Brakes Setup
- 3.5.7 Group 3.5: I/O Configuration
- 3.5.8 Group 3.6: Fieldbus Data Mapping
- 3.5.9 Group 3.7: Prohibited Frequencies
- 3.5.10 Group 3.8: Limit supervisions
- 3.5.11 Group 3.9: Protections
- 3.5.12 Group 3.10: Automatic reset
- 3.5.13 Group 3.11: Timer functions
- 3.5.14 Group 3.12: PID-controller 1
- 3.5.15 Group 3.13: PID-controller 2
- 3.5.16 Group 3.14: Multi-pump
- 3.5.17 Group 3.16: Fire mode
- 3.5.18 Group 3.17: Application settings
- 3.6 HVAC Application - Additional parameter information
- 3.7 Application - Fault tracing
Siemens Industry, Inc. • 84 Siemens Application
24-hour support +1-800-877-7545 (Dial 2)
Figure 26. Setting of minimum load.
Underload protection: Time limit (P3.9.18)
This time can be set between 2.0 and 600.0 s.
This is the maximum time allowed for an underload state to exist. An internal up/down counter counts
the accumulated underload time. If the underload counter value goes above this limit the protection will
cause a trip according to parameter P3.9.15). If the drive is stopped the underload counter is reset to
zero. See Figure 27 and page 52.
Figure 27. Underload time counter function.
Automatic reset (P3.10.1)
Activate the Automatic reset after fault with this parameter.
NOTE: Automatic reset is allowed for certain faults only. By giving the parameters P3.10.6 to P3.10.13
the value 0 or 1 you can either allow or deny the automatic reset after the respective faults.
Par.
P3.9.16
11102.emf
Par.
P3.9.17
f
5 Hz
Under load area
Tor q ue
Fiel dweakening
point
Par. P3.9.18
11103.emf
Tr i p ar ea
Ti m e
Under load time counter
Under load
No underl.
Trip/warning
par. P3.9.15