Mitsubishi Electric FR-F740 EC Instruction Manual page 114

PU operation mode
Possible faults:
● 50Hz for the RH, 30Hz for the RL and 10Hz for the RL are not output when they are turned on.
– Check for the setting of Pr. 4, Pr. 5, and Pr. 6 once again.
– Check for the setting of Pr. 1 "Maximum frequency" and Pr. 2 "Minimum frequency" once
again. (Refer to section 5.3.)
– Check that Pr. 180 "RL terminal function selection" = "0", Pr. 181 "RM terminal function
selection" = "2", Pr.182 "RH terminal function selection" and Pr. 59 "Remote function
selection" = "0" (all are initial values).
● FWD (or REV) lamp is not lit.
– Check that wiring is correct.
– Check for the Pr. 79 setting once again. (Pr. 79 must be set to "4".) (Refer to section 5.7.)
NOTE Refer to section 4.6.2 to change the running frequency at each terminal in Pr. 4 "Multi-speed
setting (highspeed)", Pr. 5 "Multi-speed setting (middle speed)", and Pr. 6 "Multi-speed set-
ting (low speed)".
4 - 22
Operation