N5 Modbus RTU Online Manual

Pin configuration

Overview

Connector Function
X1 Ethernet
X2 Encoder and Hall sensor connection
X3 Digital/analog inputs and outputs
X4 Brake connection
X5 Motor connection
X6 Voltage supply
X7 External logic supply, input voltage +24 V DC
Voltage supply for encoder, input voltage +24 V DC
X8 RS-485 IN
X9 RS-485 OUT
S1 Hex coding switch for Modbus address, 16s place (e.g., 0xF 0)
S2 Hex coding switch for Modbus address, 1s place (e.g., 0x0F)
S3 PIN1 150 ohm termination resistor (switch set to ON)
  PIN2 reserved
L1 Power LED

Connector X1 – Ethernet

Pin 1 is marked with an asterisk "*".

Connector X2 – encoder/Hall sensor

Note:

Two types of encoder/Hall sensor are supported:

  1. Encoder/Hall sensor with 5 V supply voltage. In this case, nothing is to be connected to connector X7; object 2059h must be set to the value "0" (factory setting).
  2. Encoder/Hall sensor with 24 V supply voltage. In this case, you must connect a voltage of 24 V DC to connector X7 (see Connector X7 – voltage supply for encoder/Hall sensor, external logic supply) and set object 2059h to the value "1".

Pin 1 and Pin 2 are marked in the diagram.

PIN Function Note
1 GND
2 Vcc +5 V DC (standard) or +24 V DC, output voltage switchable via software with object 2059h.
3 A 5/24 V signal, max. 1 MHz
4 B 5/24 V signal, max. 1 MHz
5 A\ 5/24 V signal, max. 1 MHz
6 B\ 5/24 V signal, max. 1 MHz
7 I 5/24 V signal
8 I\ 5/24 V signal
9 Hall 1 5/24 V signal, max. 1 MHz
10 Hall 2 5/24 V signal, max. 1 MHz
11 Hall 3 5/24 V signal, max. 1 MHz
12 Shielding Shielding

It must be ensured that the encoder reaches the switching thresholds specified below. Otherwise, an additional external circuit is necessary.

Type Switching thresholds
On Off
Single-ended 5 V > 3.8 V < 0.26 V
Differential 5 V > 3.8 V < 0.26 V
     
Single-ended 24 V > 14.42 V < 4.16 V
Differential 24 V > 14.42 V < 4.16 V

The internal circuit of the encoder inputs is visualised in the following image.

Connector X3 – inputs and outputs

Pin 1 is marked with an asterisk "*".

PIN Function Note
1 GND
2 Input 1 Digital input, 5 V / 24 V, switchable via software with object 3240h
3 Input 2 Digital input, 5 V / 24 V, switchable via software with object 3240h
4 Input 3 Digital input, 5 V / 24 V, switchable via software with object 3240h, directional input in clock/direction mode
5 Input 4 Digital input, 5 V / 24 V, switchable via software with object 3240h, clock input in clock/direction mode
6 Input 5 Digital input, 5 V to 24 V, not switchable via software
7 Input 6 Digital input, 5 V to 24 V, not switchable via software
8 Analogue input 1 -10 V…+10 V or 0…20 mA, switchable via software with object 3221h
9 Analogue input 2 -10 V…+10 V or 0…20 mA, switchable via software with object 3221h
10 Output 1 Digital output, open drain, max. 24 V/0.5 A
11 Output 2 Digital output, open drain, max. 24 V/0.5 A
12 Shielding Shielding
The following switching thresholds apply for inputs 1 to 4:
Max. Voltage Switching thresholds
Safe switch on Safe switch off
5 V > 3.8 V < 0.26 V
24 V > 14.42 V < 4.16 V
The following switching thresholds apply for inputs 5 and 6 (wide-range inputs from 5-24 V):
Switching thresholds
On Off
> 3.25 V < approx. 2 V
Connection data min max
Conductor cross section solid min. 0.14 mm2 0.5 mm2
Conductor cross section flexible min. 0.14 mm2 0.5 mm2
Conductor cross section flexible, with ferrule without plastic sleeve min. 0.25 mm2 0.5 mm2
Conductor cross section AWG min. 26 20
Minimum AWG according to UL/CUL 28 20

Connector X4 – brake connection

Pin 1 is marked with an asterisk "*".

PIN Function Note
1 Brake + Internally connected to +UB
2 Brake - PWM-controlled open drain output, max. 1.5 A
Connection data min max
Conductor cross section solid min. 0.14 mm2 0.5 mm2
Conductor cross section flexible min. 0.14 mm2 0.5 mm2
Conductor cross section flexible, with ferrule without plastic sleeve min. 0.25 mm2 0.5 mm2
Conductor cross section AWG min. 26 20
Minimum AWG according to UL/CUL 28 20

Connector X5 – motor connection

Pin 1 is marked with an asterisk "*".

PIN

Function

Stepper

Function

BLDC

Note
1 Shielding Shielding Shielding
2 A U
3 A\ V
4 B W
5 B\ Not used
6 Shielding Shielding Shielding
Connection data min max
Conductor cross section solid 0.2 mm2 2.5 mm2
Conductor cross section flexible 0.2 mm2 2.5 mm2
Conductor cross section flexible, with ferrule without plastic sleeve 0.25 mm2 2.5 mm2
Conductor cross section flexible, with ferrule with plastic sleeve 0.25 mm2 1.5 mm2
Conductor cross section AWG 24 12
2 conductors with same cross section, stranded, TWIN ferrules with plastic sleeve 0.5 mm2 1.5 mm2
Minimum AWG according to UL/CUL 26 12

Connector X6 – voltage supply

Voltage source

The operating or supply voltage supplies a battery, a transformer with rectification and filtering, or a switching power supply.

Note:
  • EMC: For a DC power supply line longer than 30 m or when using the motor on a DC bus, additional interference-suppression and protection measures are necessary.
  • An EMI filter is to be inserted in the DC supply line as close as possible to the controller/motor.
  • Long data or supply lines are to be routed through ferrites.

Connections

Pin 1 is marked with an asterisk "*".

PIN Function Note
1 Shielding Shielding
2 +UB
  • For version N5-1 (low current): 12 V -5%…72 V +4% DC
  • For version N5-2 (high current) and up to hardware version w007: 12 V - 48 V ±5% DC
  • For version N5-2 (high current) and hardware version w007b and higher: 12 V -5%…57,4 V DC
3 GND
Connection data min max
Conductor cross section, rigid 0.2 mm2 2.5 mm2
Conductor cross section, flexible 0.2 mm2 2.5 mm2
Conductor cross section, flexible, min. Wire-end sleeve without plastic sleeve 0.25 mm2 2.5 mm2
Conductor cross section, flexible, min. Wire-end sleeve min. Plastic sleeve 0.25 mm2 1.5 mm2
Conductor cross section, AWG 24 12
2 conductors of the same cross section, flexible, min. TWIN-AEH with plastic sleeve 0.5 mm2 1.5 mm2
AWG acc. to UL/CUL 26 12

Permissible operating voltage

Depending on the version, the maximum operating voltage is:

If the input voltage of the controller exceeds this threshold value, the motor is switched off and an error triggered. The integrated ballast circuit (25 W power) is activated above:

  • N5-1 (low current): 75 V DC
  • N5-2 (high current) and up to hardware version w007: 50.5 V DC
  • N5-2 (high current) and hardware version w007b and higher: 57.5 V DC.

The minimum operating voltage is 10 V DC. If the input voltage of the controller falls below this threshold value, the motor is switched off and an error triggered.

A charging capacitor of at least 4700 µF / 50 V (approx. 1000 µF per ampere rated current) must be connected to the supply voltage to avoid exceeding the permissible operating voltage (e.g., during braking).

Connector X7 – voltage supply for encoder/Hall sensor, external logic supply

Functionality

The voltage supply at X7 must be connected under one of the following conditions:
  1. A 24 V encoder/Hall sensor is used. In this case, a voltage of 24 V DC must be connected to X7 and bit 0 in object 2059h set to the value "1".
  2. A logic voltage supply is necessary for the controller to ensure continued access to the following functions should the power supply be lost at connector X6 (see "Connector X6 – voltage supply"):
    • Logical functionality of the controller
    • Controller communication
    • Encoder
    Note: The windings of the motor are not supplied by the logic supply.
    In this case, a voltage of 24 V DC must be connected to X7. With a 24 V encoder, object 2059h must be set to the value "1". In the case of a 5 V encoder, object 2059h is to be set to the value "0".
    Note:
    • Damage to the encoder due to high voltage!
    • The encoder/Hallsensor can be damaged if the object 2059h is wrongly configured.
    • ► Make sure that Bit 0 of the object 2059h is not set before connecting an encoder/Hallsensor with a rated voltage lower than 24 V.

Connection

Pin 1 is marked with an asterisk "*".

PIN Function Note
1 +UB Logic/encoder +24 V DC, supply voltage for logic and encoder/Hall sensor
2 GND
Connection data min max
Conductor cross section, rigid, min. 0.14 mm2 0.5 mm2
Conductor cross section, flexible, min. 0.14 mm2 0.5 mm2
Conductor cross section, flexible, min. Wire-end sleeve without plastic sleeve, min. 0.25 mm2 0.5 mm2
Conductor cross section, min. AWG 26 20
Min. AWG acc. to UL/CUL 28 20

Connector X8 – RS-485 IN

Pin 1 is marked with an asterisk "*".

PIN Function Note
1 n.c.  
2 n.c.  
3 n.c.  
4 D1 (RS-485 +)  
5 D0 (RS-485 -)  
6 n.c.  
7 n.c.  
8 Common Signal and power supply common

Connector X9 – RS-485 OUT

Pin 1 is marked with an asterisk "*".

PIN Function Note
1 n.c.  
2 n.c.  
3 n.c.  
4 D1 (RS-485 +)  
5 D0 (RS-485 -)  
6 n.c.  
7 n.c.  
8 Common Signal and power supply common

Switch S1 – Hex coding switch for Modbus slave address and baud rate

For setting the slave address and baud rate. See chapter Communication settings.

The value of this switch is multiplied by 16 and added to the value of switch S2; this switch thereby sets the 16s place.

Switch S2 - Hex coding switch for Modbus slave address and baud rate

For setting the slave address and baud rate. See chapter Communication settings.

The value of this switch is added to the value of switch S1; this switch thereby sets the 1s place.

Example

  Switch S1 is set to the value "1h", switch S2 to the value "Fh"; the result is the value "1Fh".

Switch S3 – 150 ohm termination resistor

This DIP switch (PIN 1, marked with an asterisk "*") switches the termination of 150 Ω between RS-485+ and RS-485- on or off.

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