Chapter 9 Monitoring; Operating Status Monitoring - Larsen & Toubro C*2000 Series User Manual

9 Monitoring

9.1 Operating status monitoring

 Output current
Group Code
Drive group
CUr
Inverter output current can be monitored in Cur.
Motor RPM

Group
Drive group
Function group 2
Motor rpm can be monitored in rPM,. This rpm is the synchronous one imposed on the motor.

 When H40 is set to 0 (V/F control), the Inverter output frequency (f) is displayed in rPM using the formula
below. Motor slip is not considered.
 In case that H49 code is 1 (PID control), Feed back amount is converted into frequency.
 H31: Enter the number of rated motor poles on the nameplate.
 H74: This parameter is used to change the motor speed display to mechanical speed.
 Inverter DC Link Voltage
Group
Drive group
Inverter DC link voltage can be monitored in dCL.

 times the value of input voltage is displayed while motor is at a stop.
2
Cx2000 AC Drive
Name
Output current
Code Name
rPM Motor RPM
H31 Number of motor poles
H49 PID control select
H74 Gain for Motor rpm display -
120 f
RPM
H 31
Code Name
dCL Inverter DC Link Voltage
Set Value Range
-
Set Value Range
-
- 2 ~ 12
- 0 ~ 1
1 ~ 1000
H 74
100
Set Value Range
-

Chapter 9 Monitoring

Default Unit
Default Unit
4
0
100 %
Default Unit
9-1