Unitronics Samba SM70-J-TA22 Installation Manual page 5

Samba™ PLC+ HMI
Wiring
 Do not touch live wires.
 Install an external circuit breaker. Guard against short-circuiting in external wiring.
 Use appropriate circuit protection devices.
 Unused pins should not be connected. Ignoring this directive may damage the device.
 Double-check all wiring before turning on the power supply.
 To avoid damaging the wire, do not exceed a maximum torque of 0.5 N·m (5 kgf·cm).
 Do not use tin, solder, or any substance on stripped wire that might cause the wire
Caution
strand to break.
 Install at maximum distance from high-voltage cables and power equipment.
Wiring Procedure
Use crimp terminals for wiring; use 3.31 mm² –0.13 mm² wire (12-26 AWG):
1. Strip the wire to a length of 7±0.5mm (0.270–0.300").
2. Unscrew the terminal to its widest position before inserting a wire.
3. Insert the wire completely into the terminal to ensure a proper connection.
4. Tighten enough to keep the wire from pulling free.
 Input or output cables should not be run through the same multi-core cable or share the same wire.
 Allow for voltage drop and noise interference with I/O lines used over an extended distance.
Use wire that is properly sized for the load.
 The controller and I/O signals must be connected to the same 0V signal.
I/Os
SM35/43/70-J-TA22 models comprise a total 12 inputs, 8 digital outputs and 2 analog outputs.
Input functionality can be adapted as follows:
All 12 inputs may be used as digital inputs. They may be wired in a group via a single jumper
as either npn or pnp.
In addition, according to jumper settings and appropriate wiring:
- Inputs 5 and 6 can function as either digital or analog inputs.
- Input 0 can function as a high-speed counter, as part of a shaft-encoder, or as a normal
digital input.
- Input 1 can function as either a counter reset, normal digital input, or as part of a
shaft-encoder.
- If input 0 is set as a high-speed counter (without reset), input 1 can function
as a normal digital input.
- Inputs 7-8 and 9-10 can function as digital, thermocouple, or PT100 inputs; Input 11 can also
serve as the CM signal for PT100.
Unitronics 5