
HG1T Small Teaching Pendant
Control
Units
Display
Lights
Display
Units
Safety
Products
Terminal
Blocks
Comm.
Terminals
AS-Interface
Relays &
Timers
Sockets
Circuit
Protectors
Power
Supplies
PLCs &
SmartRelay
Operator
Interfaces
Sensors
Control
Stations
Explosion
Protection
References
Flush
Silhouette
1259
Display Specifications
Display Device Transmissive STN Monochrome LCD (with
backlight)
Effective Display Area 95.96W ×31.96H mm
Display Resolution 192W ×64H pixels
Display Color
(Background and backlight)
Transmissive LCD with backlight:
Dark blue (Yellow green)
Operation Specifications
Membrane Switch Specifications
Method Tactile switch
No. of Switches 9 ×5 columns
Operating Force3Nmaximum
Life 500,000 operations minimum
Indicator LED1 to 15: Amber
Mechanical Switch Specifications
(Example: HG1T-SB12UH-A3)
Item Emergency Stop
Switch ∗1Enabling Switch ∗1
Code A E
Type No. HA1E-V2S2VR (IDEC) HE3B-M2 (IDEC)
Quantity 1 1
Contact Rating 24V DC, 1A ∗224VDC,50mA
Contact
Configuration 2NC 3-position contact ×2
(OFF-ON-OFF)
Item Illuminated Pushbutton
(Momentary) ∗3
Illuminated Pushbutton
(Momentary) ∗3
Code B1 B2
Type N o. LA1L- M1T14VR (IDEC) LA1L-M1T14VG (IDEC)
Quantity 1 1
Contact Rating 24V DC, 50 mA 24V DC, 50 mA
Contact
Configuration 1NO 1NO
LED Color Red Green
Item Selector Switch w/o Switch
Code C1 C2
Type No. LA1S -2T2 ( IDEC ) –
Quantity 1 –
Contact Rating 24V DC, 50 mA –
Contact
Configuration 1NO-1NC –
∗1: EN60947-1 compliant
∗2: With a larger applied current, the voltage drop tends to be bigger due to
resistance of the cable.
∗3: LED illumination can be controlled for up to 3 LEDs to turn on and off.
Dimensions
92.6
255
90
46.7
C2
AB2
B1
E
58.3 51.0
38.0
11.5 3.5
1.5
133
All dimensions in mm.
80
46.7
58.3
15
89.8
C1
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Interface Specifications
RS232C
Electrical Characteristics EIA RS232C compliant
Transmission Spee d 38400, 19200, 9600, 4800, 2400, 1200, 600,
300 bps
Synchronization Asynchronous
Communication Method Full duplex or half duplex
RS485
Electrical Characteristics EIA RS485 compliant
Transmission Spee d 38400, 19200, 9600, 4800, 2400, 1200, 600,
300 bps
Synchronization Asynchronous
Communication Method Half duplex
RS422
Electrical Characteristics EIA RS422 compliant
Transmission Spee d 38400, 19200, 9600, 4800, 2400, 1200, 600,
300 bps
Synchronization Asynchronous
Communication Method Full duplex
Note 1:
The HG1T is only available with RS232C/422 interface or
RS232C/485 interface, not available with RS422/485 interface.
RS232C, RS422, and RS485 cannot be used simultaneously.
Note 2: Precaution for communication conditions
Select communication specifications, such as transmission speed,
synchronization system, and communication method.
When a substantially high transmission rate is selected, performance
of the LCD indicator and other response are slower and the data can-
not be received correctly. Specify a proper transmission rate suited to
the application.
Connector Pin Assignment and Functions
D-sub 25-pin connector (plug)
(17JE-23250-02 made by DDK)
RS
232C/422
RS
232C/485 RS232C/422 RS232C/485
Pin
No. Name Function
1 FG Frame ground
2 RD2− TDB RS422
Receive data−
RS485
Communication data B
3 RD2+ TDA RS422
Receive data+
RS485
Communication data A
4 SD2− NC RS422 Send data− Unused
5 SD2+ NC RS422 Send data+ Unused
6 SG Communication signal ground
7 DR (CTS) RS232C communication control input
8 ER (RTS) RS232C communication control output
9 E_NO1 E enabling switch contact 1 (NO)
10 E_C1 E enabling switch contact 1 (COM)
11 A _ N C11 A emergency stop switch contact 1
terminal 1 (NC)
12 A_NC12 A emergency stop switch contact 1
terminal 2 (NC)
13 24V DC (–) Power supply 24V DC (–)
14 RD1 RS232C Receive data
15 SD1 RS232C Send data
16 B1_NO (Note) B1 illuminated pushbutton NO contact
17 B2_ NO (Note) B2 illuminated pushbutton NO contact
18 C1_NO (Note) C1 selector switch NO contact
19 C1_NC (Note) C1 selector switch NC contact
20 SG Communication signal ground
21 E_NO2 E enabling switch contact 2 (NO)
22 E_C2 E enabling switch contact 2 (COM)
23 A_NC21 A emergency stop switch contact 2
terminal 1 (NC)
24 A_NC22 A emergency stop switch contact 2
terminal 2 (NC)
25 24V DC (+) Power supply 24V DC (+)
Note: B1, B2, and C1 (COM) are connected to the power supply 24V DC (–)
pin inside of the HG1T.
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