Frequency Command With Sign (Pr. 541) - Mitsubishi Electric FR-A7NC E kit-SC Instruction Manual

INVERTER SETTING
4.6.3

Frequency command with sign (Pr. 541)

By frequency command with sign, the start command (forward rotation/reverse rotation) can do inverted
operation.
Make a selection of the sign for the frequency command from RWw1.
Parameter Numbers
541
Pr.541
Sign
Setting
0 Not used 0 to 40000
1 With -32768 to 32767 (two's complement) -327.68 to 327.67Hz
Relationship between the start command and sign (Pr.541 = "1")
Start Command Sign of the Frequency Command
Forward rotation
Reverse rotation
REMARKS
• When Pr.541 = 1(with sign)
• When EEPROM write is specified with the RYE, write mode error (error code H01) will occur.
• When concurrent execution of both RYD and RYE is enabled (when a value other than 0 is set in Pr.544) and both
RYD and RYE are turned ON, RYD has precedence.
• When power is turned ON (inverter reset), the initial setting status of the sign bit is "positive" and the set
frequency is "0Hz". (The motor does not run at the frequency set before turning OFF the power (inverter reset).)
• When set frequency is written with the instruction code of HED and HEE, the sign of the frequency command is
not changed.
38
Name
Frequency command sign selection (CC-Link)
Setting Range
+
-
+
-
Initial Value Setting Range
0
Actual Frequency Command
0 to 400.00Hz
Actual Run Command
Forward rotation
Reverse rotation
Reverse rotation
Forward rotation
0, 1