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VLTS
Volute-Thermostat Fault
Yaskawa · iQpump1000
¿Qué significa VLTS ?
This fault occurs when a digital input assigned to the volute/thermostat input (H1-0o = 88 or 89) is active, or if both volute/thermostat inputs are programmed simultaneously. Auto-restart is controlled by parameter L5-53.
Causas comunes
- The digital input assigned to the volute/thermostat input (H1-0o = 88 or 89) is active
- Both volute/thermostat inputs are programmed simultaneously (H1-0o = 88 and 89)
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Check the wiring to the volute or motor thermostat
- 2
Allow the volute or motor to cool
- 3
Program only one digital input to either H1-0o = 88 or H1-0o = 89
- 4
Review parameter L5-53 (Volute-TStat Retry Selection) for auto-restart settings
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Yaskawa iQpump1000