Panasonic GD Series User Manual

Thank you very much for using Panasonic products. Please read this
Instruction Manual carefully and thoroughly for the correct and opti-
mum use of this product. Kindly keep this manual in a convenient
place for quick reference.
OUTLINE
1
●
This product detects double feeds of metal sheets, lead frames, etc.
The sensitivity is easily set by teaching with actual samples.
●
●
●
Never use this product as a sensing device for personnel protection.
In case of using sensing devices for personnel protection, use products which meet laws and standards, such as
OSHA, ANSI or IEC etc., for personnel protection applicable in each region or country.
Make sure to use the sensor heads and controllers in the specified combinations. If they are used in any other com-
bination, the sensor heads may get damaged.
WARNING
FUNCTIONAL DESCRIPTION
2
POWER
ALM.
OUT-1
OUT-2
PANEL
EXT.
RS232C
NORM.
OFD.
RUN
SET
0-ADJ.
SET-2
SENS.
CH-SELECT
TIMER
SET-MODE
SET-1
CH
①②③④⑤⑥⑦
⑮⑭⑬⑫⑪
⑧
⑨
⑩
⑦
⑧
・
・
Lights up when OUT-2 is OFF.
Blinks twice on completion of zero adjustment (0-ADJ.) or
SET-2 setting in SET mode.
Sensing level indicator
(Yellow × 1, Green × 6)
・
・
・
Seven LEDs show the sensing level.
LEDs light up one after the other during teaching.
All LEDs blink at the same time if the teaching fails.
・More the number, thicker or larger the object sheets are,
more are the LEDs which light up.
Description Function
・
Sets the two-sheet threshold level (larger number of sheets).
・ Sets the one-sheet threshold level (smaller number of sheets).
・Calibrates zero level under sheet non-existing condition.
Channel display⑨
⑩
・The channel can be selected by the channel shift key when
CH-SELECT is set at PANEL.
・Switches between RUN mode and SET mode.
□RUN: Detection takes place.
□SET: Set-up is done.
・Switches timer mode.
□NORM. mode: Timer not used.
□OFD. mode: Delay timer (50ms approx.) used.
Channel shift key
⑪ SET-2 key
⑫ SET-1 key
⑬
Zero adjustment (0-ADJ.) key
⑭ SET-MODE key
⑮ TIMER key
・Shows the present channel (1 to 8).
・
・
Blinks during SET mode.
The decimal point informs whether the set level data has
been stored.
・
・
When an error occurs, the display indicates the error code.
Refer to '●Self-diagnosis (Alarm) function' in ' EX-
PLANATION OF FUNCTIONS'.
6
Decimal point
Lights up
Turns off
Stored
Not stored
Description Function
－ Panel cover①
Power indicator (Green)②
Sensing mode indicator
(Green, Yellow)
⑤
⑥
Channel select key
(CH-SELECT)
③
Self-diagnosis indicator
(Red)
・Lights up when the power is ON.
④
・SET mode: Lights up under normal condition.
RUN mode: Lights up on error.
・
・
Lights up when OUT-1 is OFF.
Blinks twice on completion of zero adjustment (0-ADJ.) or
SET-1 setting in SET mode.
Comparative output-1
(OUT-1) indicator (Green)
・
・
Specifies whether channel selection is by panel operation,
by external channel select inputs, or through RS-232C com-
munication.
□PANEL: Selection is by channel select key.
□LOCK: Locks channel selection. In case of GD-C2, this is
also the setting for channel selection by external
device through RS-232C.
□EXT.: Selection is by external channel select inputs.
The table below gives the key and external input operation
for each channel selection method.
GD-C2:
RS-232C
○: Operable
Panel keysExternal inputs
Operation
RUN / SET selection
Mode
PANEL
LOCK
(RS-232C)
EXT.
○(Note) ○(Note) ○(Note)
Timer mode selection ○○○
SET-1 ○○○
SET-2 ○○○
0-ADJ. ○○○
RUN / SET ○○○
SET-1 ○○○
SET-2 ○○○
IN-0 ○
IN-1 ○
IN-2 ○
Channel shift ○
Note: The RUN / SET selection with the SET-MODE key on
the panel is effective only when the RUN / SET selec-
tion input is High (RUN mode).
・
・
Indicates the sensing mode.
Refer to '●Sensing Mode' in ' EXPLANATION OF
FUNCTIONS'.
・
・
Lights up green: Normal sensing mode
Lights up yellow: Precise sensing mode
6
Comparative output-2
(OUT-2) indicator (Red)
MJE-GD(03) No.0030-70V
INSTRUCTION MANUAL
Metal-sheet Double-feed Detector
GD Series

Panasonic GD Series Specifications

General

Category	Security Sensors
Brand	Panasonic
Detection Method	Passive Infrared
Detection Angle	110 degrees
Humidity Range	95% RH or less (no condensation)

Summary

OUTLINE

FUNCTIONAL DESCRIPTION

Panel cover

Protective cover for accessing the product's interface and controls.

Power indicator (Green)

Indicates when the unit is powered on, confirming operational status.

Channel select key (CH-SELECT)

Key used to specify channel selection method: Panel, Lock, or External inputs.

Self-diagnosis indicator (Red)

Indicates the unit's status: lights up under normal conditions, flashes on error.

Sensing mode indicator (Green, Yellow)

Indicates the current sensing mode: Green for normal, Yellow for precise.

Comparative output-1 (OUT-1) indicator (Green)

Lights up when the OUT-1 output is OFF, indicating no detection.

Comparative output-2 (OUT-2) indicator (Red)

Lights up when the OUT-2 output is OFF, indicating no detection.

Sensing level indicator (Yellow x 1, Green x 6)

Seven LEDs showing the sensing level, indicating object thickness or quantity.

Channel display

Shows the present channel (1 to 8) and blinks during SET mode.

Channel shift key

Used to select channels when the selection method is set to PANEL.

SET-2 key

Sets the two-sheet threshold level, which is the higher sensitivity level.

SET-1 key

Sets the one-sheet threshold level, which is the lower sensitivity level.

Zero adjustment (0-ADJ.) key

Calibrates the zero level under no-sheet condition.

SET-MODE key

Switches between RUN mode (detection) and SET mode (setup).

TIMER key

Switches between NORM. mode (no timer) and OFD. mode (50ms delay timer).

MOUNTING

Mounting of sensor heads

Instructions for attaching sensor heads, including fixing points and torque.

Distance from nearby metals

Specifies minimum distances to metal for optimal sensing performance.

Embedding in metal

Guidelines for clearances when sensor heads are partially embedded in metal.

Interference prevention

Minimum separation distances to prevent interference between sensor heads.

Mounting of controller

Methods for mounting the controller unit on a DIN rail or panel.

CONNECTION

SENSITIVITY SETTING

Teaching through operation panel

Procedure for setting sensitivity using the device's control panel keys.

Teaching by external input

Method for setting sensitivity using external input signals.

EXPLANATION OF FUNCTIONS

Sensing mode

Describes normal and precise sensing modes, automatically selected by object characteristics.

Two-sheet threshold level shift function

Enables shifting the two-sheet threshold level for stable detection.

Timer function

Details the 50ms delay timer for output signals, useful for slow response devices.

Self-diagnosis (Alarm) function

Explains how the unit diagnoses itself, indicating errors via indicators and display.

Response time and ALL-LOCK function

ALL-LOCK function

Locks all keys on the operation panel when activated by the channel shift key.

RS-232C DATA TRANSMISSION (GD-C2 only)

Parameter setting

Configuration of RS-232C communication parameters using DIP switches.

Command

Details of write and read commands for data communication via RS-232C.

CAUTIONS

SPECIFICATIONS

Sensor heads

Technical specifications for sensor heads, including sensing range and materials.

Controllers

Technical specifications for controllers, including supply voltage and output types.