IAI America PDR-101-MW - Manual (Page 79)

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7.2.1 Errors Occurring when Turning the Power Supply on
When the prescribed power is supplied to the main power supply of P-Driver, the RDY LED of the status
indicator turns on.
+
Contact us if the RDY LED does not turn on even if the prescribed power is supplied (please check the
voltage).
7.2.2 Errors Without Alarm Display
The ALM LED of the status indicator on the front of P-Driver is not lit. No alarm has been generated even
with the PC software connected.
(1) The Actuator does not Operate
YES
YES
YES
YES
NO
NO
NO
NO
The actuator does not operate
Is the pulse-train
output interface of the
host controller a
differential line driver?
Is the RDY LED lit?
Is the RUN LED lit?
Is each signal of the
I/O interface, including
the pulse train,
operating normally?
Set the command pulse-train mode properly
using the corresponding parameter.
Contact IAI.
The servo is not turned on.
Check the connection of the power supply of
I/O interface (24 VDC) and the I/O cable.
Check the pull-up resistance value in
the case of an open collector.
Check the input signals.