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Illustration 5.9
1. Jog Forward
2. Jog Reverse
3. Normal Operation
Table 5.7
To activate jog operation, use a programmable input (
3-3
Input A Function
).
To stop a jog operation, perform either of the following:
•
Remove the jog command
•
Press the OFF button on the LCP
•
Activate Emergency Stop using the LCP
programmable inputs
Jog will recommence at the end of a restart delay if the
jog command is still present. All other commands except
the above will be ignored during jog operation.
NOTE
Jog will operate in 2-wire mode regardless of the state of
the remote Start, Stop and Reset inputs.
NOTE
Jog is only available for the primary motor (for more
information on primary and secondary sets, see Secondary
motor set. Soft start and soft stop are not available during
jog operation.
CAUTION
Slow speed running is not intended for continuous
operation due to reduced motor cooling. Jog changes the
motor's heating profile and reduced the accuracy of the
motor thermal model. Do not rely on motor overload
protection to protection to protect the motor during jog
operation.
5.6 Inside Delta Operation
AAC, Jog and Brake functions are not supported in inside
delta (six-wire) operation. If these functions are
programmed when the starter is connected inside delta
the behaviour is as given below:
AAC Start The starter performs a Constant Current Start.
AAC Stop The starter performs a TVR Soft Stop if Stop Time is
>0 secs. If Stop Time is set to 9 secs the starter
performs a Coast to Stop.
Jog
The starter issues a warning with the error message
Unsupported Option.
Brake
The starter performs a Coast to Stop.
Table 5.8
NOTE
When connected in inside delta, current imbalance is the
only phase loss protection that is active during run. Do not
disable current imbalance protection during inside delta
operation.
NOTE
Inside delta operation is only possible with mains voltage
≤
600 VAC.
5.7 Typical Start Currents
Use this information to determine the appropriate start
current for your application.
NOTE
These start current requirements are appropriate and
typical in most circumstances, However, the performance
and start torque requirements of motors and machines do
vary. For further assistance, contact your local supplier.
Application Examples
MCD 500 Operating Instruction
MG17K402 - VLT
®
is a registered Danfoss trademark
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