Specifications
Specifications
Dimensions
Dimensions
Connector Pin Diagram
9870 Rear Panel
| 9870 REAR PANEL |
| TERMINAL | FUNCTION | DESCRIPTION |
| A | Sensor Signal Input Terminals | Terminal bank for connecting strain gauge transducers and TEDS sensors. |
| B | D/A Output Terminals | |
| C | Control Signal Input Terminals | |
| D | Comparison Output Terminals | Connect judgment outputs. |
| E | AC Adapter Jack | Connect an AC adapter. |
| • Refer to the 9870 High-Speed High Performance TEDS Ready Indicator Installation & User Manual, page 24 for information about compatible plugs. DC IN 12V |
DC IN 12V  |
| ! Do not connect both an AC adapter and a power supply to the DC power supply input terminal. |
| F | DC Power Supply Input Terminals | Connect a DC power supply. The voltage range is 12–24 V DC. |
| G | Frame Grounding Connector | FG connector for DC power supply. |
| ! Always be sure to connect the FG connector. |
Sensor Signal Input Terminals
| 9870 SENSOR SIGNAL INPUT TERMINALS |
| TERMINAL NUMBER | FUNCTION |
| 1 | + SENSE/TEDS (F) |
| 2 | - SENSE/GND (G) |
| 3 | + EXCITATION (A) |
| 4 | - SIGNAL (B) |
| 5 | - EXCITATION (C) |
| 6 | + SIGNAL (D) |
| 7 | SHIELD |
- Terminals 1 and 2 are data terminals for use by both remote sense and TEDS sensors. Before connecting the sensor, set which type will be connected in advance using the Remote Sense/TEDS setting on the Calibration menu page. If “Remote Sense disabled/TEDS enabled” is selected, calibration will occur automatically if a TEDS enabled sensor is connected.
- Select “Remote Sense enabled/TEDS disabled”, if a sensor with Remote Sense is connected.
- If using a sensor with 4 wires only (No TEDS or Remote Sense), Terminals 1 and 2 can be left open.
*Note: Never combine Sense and TEDS wires in Terminals 1 and 2.
D/A Output Connectors
These can output either voltage or current. They cannot output both at the same time. Set voltage or current in System Settings D/A Converter D/A Output Mode. Refer to the 9870 High-Speed High Performance TEDS Ready Indicator Installation & User Manual, Page 73.
| 9870 D/A OUTPUT CONNECTORS |
| TERMINAL NUMBER | SIGNAL NAME | EXPLANATION |
| 9 | V-OUT | D/A Voltage Output |
| 10 | I-OUT | D/A Current Output |
| 11 | COM | D/A Output Common Terminal |
- The D/A output is isolated from this unit’s circuits.
Control Signal Input Terminal
| 9870 CONTROL SIGNAL INPUT TERMINAL |
| TERMINAL NUMBER | SIGNAL NAME | EXPLANATION |
| 12 | CLEAR | This turns on when a hold is cleared in any hold mode except sample hold. Set whether or not CLEAR Signals are active or inactive in Hold Function Setting → CLEAR Signal. |
| 13 | JUDGE | Judgment output using judgment output control signals only functions when this is ON. Set whether or not JUDGE signals are active or inactive in Comparison Setting → JUDGE Signal. |
| 14 | HOLD | Holds function using hold start signals when this is ON. Disable this by selecting OFF in Hold Function Setting → Hold Mode. |
| 15 | D/Z | Sets the indicator value digitally to 0. This is active when both System Settings → Lock → Cal. Value Lock and Condition Setting → Digital Zero → Enable Digital Zero are set to ON. |
| 16 | SEL1 | If System Settings Setting → Memory is set to “by signal”, the SEL1 and SEL2 terminals can be used to select the active Setting Memory. Refer to the 9870 High-Speed High Performance TEDS Ready Indicator Installation & User Manual “9-1. Setting Memory” on page 71. |
| 17 | SEL2 |
| 18 | COM | This is the control input signal common terminal. |
- The control input signal is isolated from the unit’s circuits by a photocoupler.
- Signals are input to each terminal by shorting and opening with 18 COM. A current of about 20mA results from shorting. When using a transistor, select one with a resistance of at least 10 V and elements that allow the flow of at least 40 mA when on.
- You can confirm the status of the input signal on the screen shown in “6-6. Control Input Check” on page 48 of the 9870 High-Speed High Performance TEDS Ready Indicator Installation & User Manual.
Comparison Output Connectors
| 9870 COMPARISON OUTPUT CONNECTORS |
| TERMINAL NUMBER | SIGNAL NAME | EXPLANATION |
| 19 | LL | Low low limit judgment output |
| 20 | LO | Low limit judgment output |
| 21 | HH | High high limit judgment output |
| 22 | HI | High limit judgment output |
| 23 | OK | OK judgment output |
| 24 | COM | Comparison output common terminal |
- The comparison output is isolated from the unit’s circuits by a photocoupler. Open collector output (NPN, current sync) 20mA/30V maximum collector current
- For the operation of each signal, refer to the 9870 High-Speed High Performance TEDS Ready Indicator Installation & User Manual “7. Comparison Setting” on page 49.
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