YASKAWA iQpump Series Programming Manual page 62

Function: Thermostat Fault (Setting:87)
A digital input can be configured to indicate a Thermostat Fault from an external contact (H1-0x = 87). An open contact into the multi-
function input will enable the Thermostat Fault. After an initiation of a Thermostat Fault to disable the Thermostat Fault requires a closed
digital input contact, the drive run command to be open and reset the Thermostat Fault via the drive's reset button or fault reset input.
Note: An OPE12 fault will occur if H1-xx = 83 and 87. H1-xx cannot be programmed to "83" and "87" at the same time.
Figure 1.50
Figure 1.51
62
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-DRIVE-
Thermostat
THMS
U2-04 = 0.00 Hz
U2-05 = 0.00 A
Figure 50 Thermostat Fault on Operator
H1-04 = 87
(Thermostat FltNC)
Figure 51 Wiring Diagram
YASKAWA TM.iQp.02 iQpump Drive Programming Manual