Nidec COMMANDER S100, User Manual

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Safety
information
Product
information
Mechanical
installation
Electrical
installation
Getting
started
Running the
motor
Drive
parameters
Communications Diagnostics Technical data
UL Listing
Information
102
Commander S100 User Guide
8.2 Parameter update rates & fast access
parameters
The drive typically updates read only parameters (parameters in menu
1) by writing to them every 220 ms. Parameters in other menus are
typically read by the drive every 400 ms. Parameters related to
diagnostics, such as
Error (P1.29) and Parameter 1 Saved Value on
Error (P1.26) are updated when the error occurs.
Parameters that perform an action, such as Frequency Reference
Configuration (P2.03) and Default Drive (P4.01) will perform their action
when the setting is changed.
A select few have faster update rates than the typical values mentioned
above, making them ideal targets to be read/written to over MODBUS.
Table 8-13 indicates these parameters and their update rate. When
writing to parameters over MODBUS the changes are not saved
automatically, use
Save Parameters (P4.19) to save any changes made
using communications.
Table 8-13 Parameter update rates
Parameter
Update
Rate
ms
P1.04 Motor RPM 20
P1.05 Drive State 1
P1.09 Alarm Indicators 1
P1.10 Drive Status Indicators 1
P1.11 Sequencer Input and Output Indicators 1
P1.12 Run & Direction Indicators 1
P1.13 Ramp Input 1
P1.14 Ramp Output 20
P1.15 T2 Analog Input 1 Percentage 4
P1.16 T4 Analog Input 2 Percentage 4
P1.17 T15 Frequency Input Percentage 4
P1.18 Up/Down Percentage 4
P1.19 PID Percentage 4
P1.20 PID Status Indicators 4
P1.21 PID Error 4
P1.25 Digital IO Indicators 2
P2.13 Jog Frequency 20
P2.15 Up/Down Percentage Time to Maximum 4
P2.16 Preset Frequency 1 20
P2.17 Preset Frequency 2 20
P2.18 Preset Frequency 3 20
P2.19 Preset Frequency 4 20
P2.20 Frequency Reference 1 to 4 Switch 20
P2.21 Frequency Reference 1 20
P2.22 Frequency Reference 2 20
P2.23 Frequency Reference 3 20
P2.24 Frequency Reference 4 20
P2.25 Skip Frequency 20
P2.26 Skip Frequency Band 20
P2.27 Fire Mode Frequency 20
P4.07 Keypad Run and Stop Function Select 1
P4.13 Hold Drive Healthy on Auto Reset Attempts 1
P4.17 Drive Enable 1
P4.18 Binary Control Word 1
P5.01 PID Fixed Reference Setpoint 1 4
P5.02 PID Fixed Reference Setpoint 2 4
P5.07 PID Proportional Gain 4
P5.08 PID Integral Gain 4
P5.13 Threshold Detector Level 4
P5.14 Threshold Detector Hysteresis 4
P5.15 Threshold Detector Delay 4
P5.16 Threshold Detector Output Invert 4
P5.18 PID Negative Limit Enable 4
P6.07 T6 Analog Output Scaling 4
P6.11 T11 Frequency/PWM Output Scaling 4
P6.21 T2 Analog Input 1 Minimum Input 4
P6.22 T2 Analog Input 1 Percentage at Minimum Input 4
P6.23 T2 Analog Input 1 Maximum Input 4
P6.24 T2 Analog Input 1 Percentage at Maximum Input 4
P6.25 T4 Analog Input 2 Minimum Input 4
P6.26 T4 Analog Input 2 Percentage at Minimum Input 4
P6.27 T4 Analog Input 2 Maximum Input 4
P6.28 T4 Analog Input 2 Percentage at Maximum Input 4
P6.29 T15 Frequency Input Minimum Input 4
P6.30 T15 Frequency Input Percentage at Minimum Input 4
P6.31 T15 Frequency Input Maximum Input 4
P6.32 T15 Frequency Input Percentage at Maximum Input 4
Parameter
Update
Rate
ms