Diagnostic Mode - Mitsubishi Electric MELSERVO MR-J2-A Product Specifications And Installation Manual

2. OPERATION

2-3-3 Diagnostic mode

Name
Sequence
External I/O signal
display
Output signal forced
output
Jog feed
Test
Positioning
operation
operation
mode
Motor-
less
operation
Software version Low
Software version High
Automatic VC offset
Display
CN1B CN1B CN1B
9 8 7
Input signals
Output signals
CN1A CN1B
14 18
Not ready.
Indicates that the servo amplifier is being initialized or an alarm
has
Ready.
Indicates that the servo was switched on after completion of
initialization and the servo amplifier is ready to operate.
CN1A CN1B CN1B CN1B CN1B CN1B
8 14 5 17 15 16
CN1B CN1B CN1B CN1A CN1A
4 6 19 18 19
The digital output signal can be forced on/off. For more information,
refer to (2) in this section.
The servo motor can be jogged without pulse train input. During jog
feed, the servo amplifier acts as speed control servo.
The status display values of the droop pulses, cumulative command
pulses and command pulse frequency do not change.
For details, refer to (3) in this section.
The set-up software (MRZJW3-SETUP31) is re-
quired for positioning operation. This operation
NOTICE
cannot be performed from the operation section
of the servo amplifier.
The servo motor can be positioned without pulse train input.
Without connection of the servo motor, the servo amplifier
provides output signals and displays the status as if the servo
motor is running actually in response to the external input
signal. This function can be used to make a sequence check on
the host positioning unit, etc.
For more information, refer to 2), (3) in this section.
Indicates the version of the software.
Indicates the system number of the software.
If offset voltages in the analog circuits inside and outside the
servo amplifier cause the servo motor to rotate slowly at the
analog speed command (VC) or analog speed limit (VLA) of 0V,
this function automatically makes zero-adjustment of offset
voltages. Press once, set the first digit numerical value to 1
SET
using the button or
UP DOWN
automatic VC offset function valid. When this function is
executed, the automatically offset value is set to parameter No.
29.
If the input voltage of VC or VLA is ±0.4V or higher, this function
cannot be used.
2– 20
Description
Indicates the ON-OFF states of the
external I/O signals.
The upper segments correspond to
the input signals and the lower
segments to the output signals.
Lit: ON
Extinguished: OFF
The I/O signals can
be changed using
NOTICE
parameters
No. 43 to 49.
, and press again to make the
SET