64
APEX615n Installation Guide
Problem Cause Solution
No RS-232C
Communication
1. Improper RS-232C Interface or
communication parameters
2. RS-232C disabled
3. In daisy chain, unit may not be set to
proper address
1. See
RS-232C Troubleshooting
section
2. Enable RS-232C with the E command (all units if daisy-chained)
3. Verify proper application of the ADDR command
No Torque/Force 1. Improper wiring
2. No power to motor
3. Shutdown issued
1. Check wiring to the motor, as well as other system wiring
2. Check power at motor
3. Enable drive with DRIVE1
Power-up Program does
not execute
1. ENABLE IN input is not grounded to
GND
2. STARTP program is not defined
1. Ground ENABLE IN to GND and reset or cycle power
2. Check the response to the STARTP command. If no program is
reported, define the STARTP program and reset
Program access denied:
receive the message
*ACCESS DENIED when
trying to use the DEF, DEL,
ERASE, INFNC, or
MEMORY commands
1. Program security function has been
enabled (INFNCi-Q) and the
program access input has not been
activated
1a. Activate the assigned program access input, perform your
programming changes, then deactivate the program access input.
1b. Refer to the instructions in the INFNC command description in the
6000 Series Software Reference
Program execution: stops
at the INFEN1 command
1. INFEN1 enables drive fault
monitoring, but the drive fault level
(DRFLVL) command is set
incorrectly for the drive being used.
1. Issue the correct DRFLVL command for your drive (refer to the
DRFLVL command)
Program execution: the
first time a program is run,
the move distances are
incorrect. Upon
downloading the program
the second time, move
distances are correct.
1. Scaling parameters were not issued
when the program was downloaded;
or scaling parameters have been
changed since the program was
defined
1. Issue the scaling parameters (SCALE1, SCLA, SCLD, SCLV) before
saving any programs
Programmable inputs not
working
1. IN-P or AUXP (input pullup) not
connected
2. If external power supply is used, the
grounds must be connected together
3. Improper wiring
1a. When inputs will be pulled down to 0V by an external device,
connect IN-P and/or AUX-P to +5V or to another positive supply
1b. When inputs will be pulled up to 5V or higher by an external device,
connect IN-P and/or AUX-P to 0V
2. Connect external power supply’s ground to ISO GND
3. Check wiring for opens, shorts, and mis-wired connections
Programmable outputs not
working
1. Output connected such that it must
source current (pull to positive
voltage)
2. OUT-P not connected to +5V or
other positive voltage source
3. If external power supply is used, the
grounds must be connected together
4. Improper wiring
1. Outputs are open-collector and can only sink current–change wiring.
2. Connect OUT-P to +5V supplied or other voltage in system
3. Connect external power supply’s ground to ground ISO GND
4. Check wiring for opens, shorts, and mis-wired connections
Trigger, home, or end-of-
travel inputs not working.
1. If external power supply is used, the
grounds must be connected together.
2. Improper wiring.
1. Connect external power supply's ground to APEX615n's ground .
2.a. Check wiring for opens, shorts, and mis-wired connections.
2.b. When inputs are pulled down to 0V by an external device, connect
AUX-P to +5V supplied or to an external +5-24V supply (but not to
both).
2.c. When inputs are pulled to 5-24V by external device, connect AUX-P
to 0V.
2.d. Make sure a 5-24V power source is connected to the V_I/O terminal.
Wrong Direction—
Stable
1. Phase of encoder reversed 1. Switch CHA+ with CHA- connection from APEX615n to encoder
Wrong Direction—
Unstable
1. Not tuned properly
2. Phase of encoder reversed
1. Refer to Chapter 4 for tuning instructions
2. Switch CHA+ with CHA- connection from APEX615n to encoder
Wrong Speed or Distance 1. Wrong resolution setting
2. Wrong scaling value
1. Encoder feedback: Check and set resolution on APEX615n with
ERES set to 4096.
2. Check the scaling parameters (SCALE1, SCLA, SCLD, SCLV)
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