6-20
Programming Your Application
605C Frequency Inverter
CURRENT LIMIT
This function block allows the user to set
the maximum level of line current or motor
load at which the Inverter is intended to
operate. If the measured level of current or
load exceeds the MOTOR I LIMIT value,
the Inverter attempts to shed motoring
current or load by reducing its output
frequency (reduce motor speed). Under
extreme conditions, the Inverter frequency can be reduced to zero.
If the measured level of current or load exceeds the REGEN I LIMIT, the Inverter attempts to
shed regenerating current or load by increasing its output frequency. Under extreme conditions,
the Inverter frequency can be increased up to the maximum speed setting. You can disable the
action of REGEN I LIMIT.
MMI Menu Map
1
SETUP PARAMETERS
2
FUNCTION BLOCKS
3
MOTOR CONTROL
4
CURRENT LIMIT
MOTOR I LIMIT
REGEN I LIMIT
FEEDBACK SOURCE
REGEN LIM ENABLE
CURRENT LIMITING
CURRENT LIMIT
LIMITING [370]
–
FALSE
150.00 % – [365] MOTOR I LIMIT
–
-150.00 %
–
[623] REGEN I LIMIT
–
CURRENT
–
[366] FEEDBACK SOURCE
–
TRUE
–
[686] REGEN LIM ENABLE
–
Parameter Descriptions
MOTOR I LIMIT
Range: 0.00 to 150.00 %
This parameter sets the level of motor current, as a % of FULL LOAD CALIB (refer to the
CURRENT FEEDBACK function block) at which the Inverter begins to reduce the Inverter
output frequency.
REGEN I LIMIT
Range: -150.00 to 0.00 %
This parameter sets the level of motor current, as a % of FULL LOAD CALIB (refer to the
CURRENT FEEDBACK function block) at which the Inverter begins to increase the Inverter
output frequency.
FEEDBACK SOURCE
Range: Enumerated - see below
This parameter determines the feedback source (measured value) for the current limit. The
feedback source determines the mode of current limit operation.
Enumerated Value
:
Feedback Source
0 : CURRENT
1 : LOAD
REGEN LIM ENABLE
Range: FALSE / TRUE
This parameter enables or disables REGEN I LIMIT.
LIMITING
Range: FALSE / TRUE
This diagnostic indicates whether the current limit is active (altering Inverter output frequency)
or inactive.
Summary of Contents for 605C
Page 16: ...1 4 Getting Started 605C Frequency Inverter ...
Page 22: ...2 6 An Overview of the Inverter 605C Frequency Inverter ...
Page 50: ...4 14 Operating the Inverter 605C Frequency Inverter ...
Page 66: ...5 16 The Operator Station 605C Frequency Inverter ...
Page 156: ...8 2 Routine Maintenance and Repair 605C Frequency Inverter ...
Page 184: ...10 22 Parameter Specification 605C Frequency Inverter ...
Page 212: ...13 6 Application Notes 605C Frequency Inverter ...
Page 214: ...14 2 Serial Communications 605C Frequency Inverter ...
Page 236: ......