Connector Pin Diagram
I/O Connector
The I/O connector on the rear panel is the 15 pin female D connector labeled I/O. It contains the Logic I/O, Analog outputs, and 5V supply voltage. The table below shows the pinout. Typical input and output connections follow. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
15 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | LOGIC OUT 1 |
2 | LOGIC OUT 2 |
3 | LOGIC OUT 3 |
4 | LOGIC OUT 4 |
5 | LOGIC OUT 5 |
6 | LOGIC OUT 6 |
7 | LOGIC IN 1 |
8 | LOGIC IN 2 |
9 | LOGIC IN 3 |
10 | LOGIC IN 4 |
11 | 5VDC |
12 | LOGIC GND |
13 | ANA GND |
14 | ANA OUT 1 |
15 | ANA OUT 2 |
Note: A 15 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness. Typical Logic Input Sources
Logic Inputs
TTL compatible Low-true Schmitt trigger Pull-up Resistor:
47k (internal)
Typical Logic Output Loads
Logic Outputs
Open collector Low-true Operating Voltage:
24V max
Sink Current:
300mA max
Ext +5VDC
Load Current:
250mA max
Model ACUA Connector
Transducer connectors on the rear panel are the two 9 pin female D connectors labeled CH1 and CH2. The pinout is dependent on the type of modules installed. The table below shows the pinout for the Model ACUA (AC Strain Gage Amplifier). A drawing of a typical cable follows. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
CAL FB is CAL Feedback
ACUA 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | SHIELD |
2 | ANA GND |
3 | - INPUT |
4 | + INPUT |
5 | CAL FB |
6 | + EXCITATION |
7 | + SENSE |
8 | - SENSE |
9 | - EXCITATION |
! CAUTION: The COM connector is also a 9 pin female D connector. For systems purchased without cables, a 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical AC Strain Gage Transducer Cable
6 Wire Cable (recommended for most high accuracy applications)
Excitation:
3Vrms, 3030Hz
Excitation Load:
80 to 2000
Input Sensitivity:
0.5 to 5mV/V
Max Cable Length:
500ft (load••100Ω)
200ft (load<100Ω)
Model LVDA Connector
Transducer connectors on the rear panel are the two 9 pin female D connectors labeled CH1 and CH2. The pinout is dependent on the type of modules installed. The table below shows the pinout for the Model LVDA (LVDT Amplifier). A drawing of a typical cable follows. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
CAL FB is CAL Feedback
LVDA 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | SHIELD |
2 | ANA GND |
3 | - INPUT |
4 | + INPUT |
5 | RESERVED |
6 | + EXCITATION |
7 | + SENSE |
8 | - SENSE |
9 | - EXCITATION |
! CAUTION: The COM connector is also a 9 pin female D connector. For systems purchased without cables, a 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical LVDT Transducer Cable
Model LVDA
Excitation:
2Vrms 2.5, 3, 5, or 10kHz
Excitation Load:
•80Ω
Input Sensitivity:
100 to 1000mV/V
Max Cable Length:
50ft
Model DCSA Connector
Transducer connectors on the rear panel are the two 9 pin female D connectors labeled CH1 and CH2. The pinout is dependent on the type of modules installed. The table below shows the pinout for the Model DCSA (DC Strain Gage Amplifier). A drawing of a typical cable follows. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
CAL FB is CAL Feedback
ACUA 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | SHIELD |
2 | ANA GND |
3 | - INPUT |
4 | + INPUT |
5 | CAL FB |
6 | + EXCITATION |
7 | + SENSE |
8 | - SENSE |
9 | - EXCITATION |
! CAUTION: The COM connector is also a 9 pin female D connector. For systems purchased without cables, a 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical DC Strain Gage Transducer Cable
6 Wire Cable (recommended for most high accuracy applications)
Model DCSA
Excitation:
5 or 10VDC
Excitation Load:
80 to 2000Ω (5V) 170 to 2000Ω (10V)
Input Sensitivity:
1 to 4.5mV/V
Max Cable Length:
500ft
Model DCVA Connector
Transducer connectors on the rear panel are the two 9 pin female D connectors labeled CH1 and CH2. The pinout is dependent on the type of modules installed. The table below shows the pinout for the Model DCVA (DC Voltage Amplifier). A drawing of a typical cable follows. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
+CAL (NO) and -CAL (NO) are normally open contacts that short to CAL COM during Remote (+) and (-) CAL operations, respectively.
DCVA 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | + INPUT |
2 | - INPUT |
3 | GND |
4 | + CAL (NO) |
5 | - CAL (NO) |
6 | +15VDC |
7 | GND |
8 | +5VDC |
9 | CAL COM |
! CAUTION: The COM connector is also a 9 pin female D connector. For systems purchased without cables, a 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical DC Voltage Transducer Cable
6 Wire Cable (recommended for most high accuracy applications)
Model DCVA
Excitation:
5V@250mA* or 15V@100mA*
Input Sensitivity:
±1 to ±10V
Max Cable Length:
2000ft
Model DCIA Connector
Transducer connectors on the rear panel are the two 9 pin female D connectors labeled CH1 and CH2. The pinout is dependent on the type of modules installed. The table below shows the pinout for the Model DCIA (DC Current Amplifier). Drawings of typical cables follow. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
DCIA 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | + INPUT |
2 | - INPUT |
3 | GND |
4 | RESERVED |
5 | RESERVED |
6 | +15VDC |
7 | GND |
8 | RESERVED |
9 | RESERVED |
! CAUTION: The COM connector is also a 9 pin female D connector. For systems purchased without cables, a 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical Transmitter (2 wire) Cable
Model DCIA
Excitation:
15V@30mA
Input Ranges:
4-20mA, 12±8mA, 0±10mA, 0±20mA
Max Cable Length:
2000ft
Typical Transmitter (4 wire) Cable
Model DCIA
Excitation:
15V@30mA
Input Ranges:
4-20mA, 12±8mA, 0±10mA, 0±20mA
Max Cable Length:
2000ft
*If transmitter has single-ended output then connect – input (pin 2) to GND at transmitter. Do not make this connection at DCIA connector. Instead, run separate wires for Power GND and Output GND as shown in diagram.
Model CTUA Connector
Transducer connectors on the rear panel are the two 9 pin female D connectors labeled CH1 and CH2. The pinout is dependent on the type of modules installed. The table below shows the pinout for the Model CTUA (Frequency Input Module). Drawings of typical cables follow. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
CTUA 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | INPUT A (+) |
2 | INPUT B (-) |
3 | INPUT B (-) |
4 | GND |
5 | RESERVED |
6 | +12VDC |
7 | ANA GND |
8 | +5VDC |
9 | RESERVED |
! CAUTION: The COM connector is also a 9 pin female D connector. For systems purchased without cables, a 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical Passive Speed Pickup Cable
Model CTUA
Excitation Supplies:
5V@250mA* or 12V@125mA
Input Types:
Differential or Single-ended
Input Thresholds:
10,20,50,100mVp-p or TTL
Max Cable Length:
2000ft
Typical Zero Velocity Speed Pickup Cable
Model CTUA
Excitation Supplies:
5V@250mA* or 12V@125mA
Input Types:
Differential or Single-ended
Input Thresholds:
10,20,50,100mVp-p or TTL
Max Cable Length:
2000ft
To be compatible with other systems, some Zero Velocity Speed Pickup cables have Common going to Input B (pin 2) and a jumper going from Input B (pin 3) to GND (pin 4). These cables are compatible with the Model CTUA, also.
Typical Zero Velocity Speed Pickup Cable
Model CTUA
Excitation Supplies:
5V@250mA* or 12V@125mA
Input Types:
Differential or Single-ended
Input Thresholds:
10,20,50,100mVp-p or TTL
Max Cable Length:
2000ft
*Both excitation voltages can be used simultaneously with the following restrictions.
(5V current) +4.8 x (12V current) •• 700mA, 5V current •• 250mA, 12V current •• 125mA
Model UDCA Connector
Transducer connectors on the rear panel are the two 9 pin female D connectors labeled CH1 and CH2. The pinout is dependent on the type of modules installed. The table below shows the pinout for the Model UDCA (Encoder/Totalizer Module). Drawings of typical cables follow. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals.
UDCA 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | INPUT A |
2 | INPUT B |
3 | INPUT B |
4 | GND |
5 | RESET |
6 | +12VDC |
7 | ANA GND |
8 | +5VDC |
9 | RESET ARM |
! CAUTION: The COM connector is also a 9 pin female D connector. For systems purchased without cables, a 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical Rotary Encoder (with Index Pulse) Cable
Model UDCA
Excitation Supplies:
5V@250mA* or 12V@125mA*
Input Types:
Single-ended
Count Modes:
1X, 2X, 4X, Events
Max Cable Length:
500ft
To have Index Pulse reset the Model UDCA counter once per revolution, make sure the Reset Signal setting is TTL Low resets or TTL High resets depending on the polarity of the Index Pulse.
If Reset Signal setting is ignore, then the Reset signal (pin 5) does not reset the counter. Index Pulse can still be connected.
The counter can also be reset via RESET key (see RESET Key – Reset UDCA Counter in CHAN SETTINGS) and/or Logic I/O (see Reset Count in LOGIC I/O).
Typical Encoder (with Reset Switch) Cable
Model UDCA
Excitation Supplies:
5V@250mA* or 12V@125mA*
Input Types:
Single-ended
Count Modes:
1X, 2X, 4X, Events
Max Cable Length:
500ft
The momentary switch resets the Model UDCA counter. Make sure the Reset Signal setting is TTL Low resets.
The counter can also be reset via RESET key (see RESET Key – Reset UDCA Counter in CHAN SETTINGS) and/or Logic I/O (see Reset Count in LOGIC I/O).
*Both excitation voltages can be used simultaneously with the following restrictions.
(5V current) +4.8 x (12V current) •• 700mA, 5V current •• 250mA, 12V current •• 125mA
Typical Reset and Reset Arm Sources
Make sure Reset Signal and/or ResetArm Sig settings are each set to the proper polarity.
Typical Input A (Event) Sources
Make sure Count Mode setting is Event (Input A) and Count Edge setting is set to the proper edge.
Model COM Connector
The RS232/485/422 communications connector on the rear panel is the 9 female D connector labeled COM. The table below shows the pinout. Drawings of typical cables follow. Refer to the 9850 Torque Transducer and Load Cell Indicator Manual Appendix H, Page 161 for specifications of the signals and Appendix F, Page 143 for serial communication commands.
COM 9 PIN FEMALE CONNECTOR PINOUT |
PIN | FUNCTION |
1 | +TXD |
2 | TXD |
3 | RXD |
4 | RESERVED |
5 | GND |
6 | - TXD |
7 | RESERVED |
8 | + RXD |
9 | - RXD |
! CAUTION: CH1 and CH2 connectors are also 9 pin female D connectors. A 9 pin male mating connector with hood is provided with unit. It includes various size grommets for different cable thickness.
Typical RS485 Cable
GND connection is used to keep common mode voltage to a safe range at receivers. If GND is not connected, reliability and noise immunity are sacrificed.
9850 COM port
- Set BAUD Rate, # of Data Bits, and Parity to desired values.
- Make sure each 9850 instrument has a unique Unit ID. See Unit ID in COM OPTIONS.
Computer COM port
- Make sure BAUD Rate, # of Data Bits, and Parity are set the same as those for the 9850 instrument(s).
- Set # Stop Bits to 1.
- Disable handshaking (such as, RTS, XON/XOFF, etc).
- Enable RS485 driver always. See manual for RS485 adapter. Some adapters use RTS to enable drivers. In these cases, set up port to always turn on RTS.
Termination resistors (RT) should only be used with high data rates and long cable runs. A good rule of thumb is 2000ft at 38400 BAUD. Terminate with 120Ω at no more than two places; the computer and the 9850 at the furthest end. To use the termination resistors installed in the 9850, Refer to the 9850 Torque Transducer and Load Cell Indicator Manual RS485/422 Termination Jumpers in Appendix B, Page 121.
Bias resistors (RB) are used to maintain a proper idle voltage state when all drivers are inactive. Otherwise, the state of the signal is unknown.
As long as the computer communication port is set up to enable drivers (TXD) always when port is open, there is no need for bias resistors on the Receive Data lines (RXD) at the 9850 instrument(s).
But, since the drivers (TXD) on the 9850 instrument are only active when they are addressed, bias resistors are required on the Receive Data lines (RXD) at the computer. Typically, these are provided on the RS485 adapter.
There are two requirements for determining the value of RB. There must be at least 200mV from +RXD to -RXD, and the load of the RS485 drivers must be greater than 54Ω . The impedance of an RS485 receiver is 12kΩ . If the bias resistors are too large, noise immunity decreases with possible data loss. If the bias resistors are too small, the load on the driver increases. The value for the bias resistors depends on whether termination resistors (RT) are used.
If termination resistors (RT) are not used, RB must be between 28Ω and 144kΩ. A typical value for RB is 4.7kΩ.
If termination resistors (RT) are used, RB must be between 283Ω and 716Ω. A typical value for RB is 470Ω.
Typical RS232 Cable
GND connection is used to keep common mode voltage to a safe range at receivers. If GND is not connected, reliability and noise immunity are sacrificed.
9850 COM port
- Set BAUD Rate, # of Data Bits, and Parity to desired values.
- Even though only one instrument can be connected, the Unit ID is required for serial communication commands. See Unit ID in COM OPTIONS.
Computer COM port
- Make sure BAUD Rate, # of Data Bits, and Parity are set the same as those for the 9850 instrument.
- Set # Stop Bits to1.
- Disable handshaking (such as, RTS, XON/XOFF, etc).
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