Mitsubishi Electronics 520 540 Air Conditioner User Manual


 
159
2
FUNCTIONS
Communication parameters
[Explanation of table]
External : Operation is valid only from external terminal signal.
Computer : Operation is valid only from computer.
Combined : Operation is valid from either of external terminal and computer.
: Operation is invalid from either of external terminal and computer.
2.15.3 Link startup mode selection (n10 )
The parameter numbers in parentheses are those for use with the parameter unit (FR-
PU04).
RH, RM,
RL, REX
selection
function
Remote setting
(RH, RM, RL)
Computer External Computer External
Pr. 59 =
"1", "2"
15-speed selection (REX)

MRS
selection
function
PU operation interlock
(MRS)
External External External External Pr. 79 = "7"
CAUTION
When Pr. 79 "operation mode selection" is set to "7" (PU operation interlock
function), only the external terminal is made valid independently of the n8 and
n9 settings because the MRS terminal is shared.
The operation mode at power on and at power restoration after instantaneous
power failure can be selected.
Set "1" in n10 to select the computer link operation mode.
After a link start, parameter write is enabled with a program.
Parameter Name
Factory
Setting
Setting
Range
Remarks
n10 (340)
Link startup
mode selection
0 0, 1 Setting is enabled when Pr. 30 = "1"
Operation
location
selection
n8 (Pr. 338) "operation
command source"
0:
Computer
0:
Computer
1:
External
1:
External
Remarks
n9 (Pr. 339) "speed
command source"
0:
Computer
1:
External
0:
Computer
1:
External