YASKAWA iQpump Series Programming Manual page 182

Parameter Name
Parameter Modbus
Digital Operator
No. Address
Display
Terminal S7 Function
H1-05
0404H Selection
Terminal S7 Sel
182
Description
83: Thermostat Fault,
Function Active in Auto Mode.
Closed: Drive will trip on "Thermostat Fault".
Open: Thermostat fault not active.
Open: Low Water Level Fault.
84: Pre-charge
Closed: Disables pre-charge function.
Open: Pre-charge function enabled.
85: Low Water Level
Function Active in Auto Mode during normal operation, also used with
pre-charge function.
Function logic depends on parameter P1-15 (Low Water Input).
P1-15 = 0 (Closed @ Low Water).
Closed: Low Water Level Fault.
Open: Reservoir/Tank is filled to normal level.
P1-15 = 1 (Open @ Low Water).
Closed: Reservoir/Tank is filled to normal level.
Pre-charge function: Function uses low water level input as "Tank/
Reservoir" feedback to indicate water level reached.
86: Fixed Speed Auto
Function Active in Auto Mode Only, Pre-Charge and Thrust Bearing
function have a higher priority. When fixed speed auto is active
(closed) drive disabled Sleep Mode and Lead/Lag operation.
Closed: Drive runs at P3-02 frequency, PI Control disabled
Open: Drive runs normal operation auto mode.
87: Thermostat Fault, Normally Closed
Function Active in Auto Mode.
Closed: Thermostat fault not active.
Open: Drive will trip on "Thermostat Fault".
Setting
Range
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YASKAWA TM.iQp.02 iQpump Drive Programming Manual
Factory Menu
Setting Location
0 to 87 84 Programming
Page
No.
47