Troubleshooting - Delta Electronics AH500 Manual

A H 5 00 M o ti on C on tr ol M od ul e Ma nua l
 Set P0-02 to 16#120. If the servo drive is connected successfully, the value shown on the
display of the servo drive will be 16#80. If the value shown on the display is 16#06, users
have to check whether there is a servo drive whose station address is 16#01.
 Writing a program
Write T_DMCControllnit in a program for AH20MC-5A.
In this example, after the PLC used begins to operate, the servo drive whose station address is
1 will be initialized first. After the initialization of the servo drive whose station address is 1 is
complete, the value shown on the display of the servo drive will be 16#111, the servo drive will
be operable, and the servo drive will be ON.
* When the motion control function block T_DMCControllnit is used, only one servo drive can be
initialized at a time.

14.8 Troubleshooting

Problem
The DMCNET connection LED
indicator on an AH500 series
motion control module is not ON.
The value of bit 0~bit 3 in SR1073
(SR1173, SR1273...) is 0.
The value of a parameter in a
servo drive is incorrect.
After a value is written into a servo
drive, no response is received in a
specified amount of time.
After P0-02 in a servo drive is set
to 16#120, the value shown on the
display of the servo drive is 16#06.
1 4 - 1 8
Check whether a networking cable is connected to the
AH500 series motion control module correctly, and check
whether a terminal resistor is connected correctly.
Users have to instruct the servo drive used to reset NMT by
means of bit 0~bit 3 in SR1072 (SR1172, SR1272...). If the
servo drive is still not connected, the users have to check
whether the cables connected to the hardware used are
loose, and check whether a terminal resistor is connected.
Check whether the parameter can be set when the servo is
ON/OFF, and check whether the data type set is correct.
Check whether the servo drive can be connected correctly.
1. Check whether there is a servo drive whose node ID is
1 on the DMCNET created.
2. Check whether the cables connected to the hardware
used are loose.
Remedy