IAI RCM-P6AC, Instruction Manual

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9.
Troubleshooting
Fieldbus Communication
227
RCP6S
Chapter 9 Troubleshooting
9.1 Action to Be Taken upon Occurrence of Problem
Upon occurrence of a problem, take an appropriate action according to the procedure below in
order to ensure quick recovery and prevent recurrence of the problem.
1) Check the status indicator LEDs on each controller.
{
: Illuminating, ×: OFF, : Flashing
LED Color Operation Status
Power is OFF
× -
Servo OFF
Alarm (operation available lebel or more)
Red
Emergency stop
Red During crash detection
Green Servo ON
Green Automatic Servo is OFF
(Note 1)
Orange In initializing process when the power is turned on
Note 1: Automatic servo-off signal: [Refer to 6.1 Automatic Servo-off and Full Servo
Functions]
2) Check whether an alarm occurs on the host controller (PLC, etc.).
3) Check the voltage of the main power supply (24V DC).
4) Check the voltage of power supply for the fieldbus.
5) Check the voltage of the power supply for brake (For the actuator with the brake).
6) Alarm Check
(Note 2)
Check the alarm code on the teaching tool such as PC software.
7) Check the connectors for disconnection or connection error.
8) Check the cables for connection error, disconnection or pinching.
Before performing a continuity check, turn off the power (to prevent electric shocks) and
disconnect the cables of measuring instruments (to prevent accidental power connection
due to sneak current path).
9) Check the I/O signals.
Using the host controller (PLC, etc.) or a teaching tool such as PC software, check the
presence of inconsistency in I/O signal conditions.
10) Check the noise elimination measures (grounding, installation of surge killer, etc.).
11) Check the events leading to the occurrence of problem
(Note 3)
, as well as the operating
condition at the time of occurrence.
12) Analyze the cause.
13) Treatment
Note 2: The alarms applicable for this function are those stated in Section 9.3 Gateway
Alarm or 9.4 Driver Alarm. Any error which may occur in a teaching tool such as
the PC software is not included.
Note 3: If of gateway parameter setting tool set to current time, it is possible to know the
date and time at which the alarm occurred. Refer to [3.8.3 (5) Clock Setting] for
how to set up the date and time.
The date and time data set once is retained for about 10 days if the power supply
of the controller is OFF. Unless the setting is conducted or the clock data is lost,
the clock shows 00/01/01 00:00:00 when the power is turned ON.
Even if the date and time data is lost, the generated error code is retained.
Notice: In troubleshooting, exclude normal portions from suspicious targets to narrow
down the causes. Check 1) to 11) described above before contacting us.
ME0349-4B