Mitsubishi Electric FR-A720-00030-NA Instruction Manual page 504

(6) Motor temperature monitor output (when using a dedicated vector motor with thermistor
and FR-A7AZ)
The change applies to the December 2010 production or later.
When using a dedicated vector motor with thermistor (SF-V5RUT/A) and FR-A7AZ, motor temperature monitoring
is available from PU, DU, terminal AM, terminal FM, RS-485 communication, output options and communication options. (Set
Pr. 407 Motor temperature detection filter  "9999")
Parameter
Number
52 DU/PU main display data selection
54 FM terminal function selection
158 AM terminal function selection
306 Analog output signal selection
*1
Analog meter voltage output
310
*1
selection
838 DA1 terminal function selection
*2
*1 Read/write is enabled when using FR-A7AY.
*2 Read/write is enabled when using FR-A7AZ.
Refer to the following when monitoring motor temperature from communications.
Communications
Mitsubishi inverter protocol
(computer link communication)
Modbus-RTU communication
FR-A7ND (DeviceNet)
Communication option
Set the following parameter to adjust the motor temperature on the full scale.
Parameter
Number
751 * Reference motor temperature
* Read/write is enabled when using FR-A7AZ.
Output from terminal FM (AM)
Terminal FM (AM)
output
1440 pulses/s (10V)
Outputs 0 when
motor temperature
is below 0 C
-50 C
REMARKS
 Motor temperature monitor outputs present motor temperature even when the inverter is stopped, running or at a fault.

 When Pr. 407
"9999", motor temperature monitor is not activated and the output remains 0 mA or 0V.
Name
FR-A7NC (CC-Link)
FR-A7NL (LonWorks)
FR-A7NP (Profibus)
FR-A7NF (FL remote)
Name
Pr. 751 200 C
Setting range of Pr. 751
Initial
Initial signal
Value
0, 5 to 14, 17 to 20, 22 to 25,
0
32 to 35, 39, 46, 50 to 57, 100
1 to 3, 5 to 14, 17, 18, 21, 24,
1
32 to 34, 46, 50, 52, 53
1 to 3, 5 to 14, 17, 18, 21, 24,
1
32 to 34, 46, 50, 52, 53
1 to 3, 5 to 14, 17, 18, 21, 24,
2
32 to 34, 46, 50, 52, 53
1 to 3, 5 to 14, 17, 18, 21, 24,
2
32 to 34, 46, 50, 52, 53
1 to 3, 5 to 14, 17, 18, 21, 24,
2
32 to 34, 36, 46, 50, 52, 53
Special monitor selection No. write data: H2E
nviInvMonCode: H002E
Class: 0x80, Instance: 1, Attribute: 56
PPO type support specification PNU: P1.46
(PNU number 1, Sub-Index number 46)
PPO type non-support specification IND: 0000H PNU: 2DH
Initial Setting
Value Range
150°C 1 to 200°C Set the motor temperature on the full scale.
Output from terminal DA1
Terminal DA1
output
10V
Motor
temperature
46: Motor temperature
monitor
Monitor reading
Register: 40246
Monitor code: H2E
H100001EA
Description
Pr. 751 200 C
Motor
temperature
Setting range of Pr. 751
-10V
Setting Range
493