Emerson E300 Series - Page 72

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72 E300 Design Guide
Issue Number: 1
24 Digital I/O 1
25
Digital I/O 2
26 Digital I/O 3
Terminal 24 default function V threshold 1 output
Terminal 25 default function Brake control output
Terminal 26 default function V3 Speed Reference
Type Positive or negative logic digital inputs, positive logic voltage source outputs
Input / output mode controlled by... Parameters F24, F25 and F26
Voltage range 0 V to + 24 V
Operating as an input
Logic mode controlled by... Parameter F02
Absolute maximum applied voltage range - 3 V to + 30 V
Operating as an output
Nominal maximum output current
100 mA (Digital I/O 1 & 2 combined),
100 mA (Digital I/O 3 & + 24 V User output combined)
Maximum output current 100 mA, 200 mA (total including all Digital I/O)
27 Digital Input 4
28 Digital Input 5
Terminal 27 default function FAST disable input
Terminal 28 default function
Direction input
Type Negative or positive logic digital inputs
Logic mode controlled by... Parameter F02
Voltage range 0 V to + 24 V
Absolute maximum applied voltage range - 3 V to + 30 V
29 Digital Input 6
Terminal 29 default function V1 Speed Reference
Type Negative or positive logic digital inputs
Logic mode controlled by... Parameter F02
Voltage range 0 V to + 24 V
Absolute maximum applied voltage range - 3 V to + 30 V
30 0V common
Function Common connection control terminals 21 to 31
31
Safe Torque Off (STO), Drive enable
Type Positive logic only digital input
Voltage range 0 V to + 24 V
Absolute maximum applied voltage + 30 V
The Safe Torque Off (STO) function may be used in a safety-related application in preventing the drive from generating torque in the motor to a high
level of integrity. The system designer is responsible for ensuring that the complete system is safe and designed correctly according to the relevant
safety standards. If the Safe Torque Off (STO) function is not required, this terminal is the Drive enable.
41
Relay contacts
42
Default function Drive OK indicator
Contact voltage rating 240 Vac, Installation over-voltage category II
Contact maximum current rating 2 A AC 240 V, 4 A DC 30 V resistive load, 0.5 A DC 30 V inductive load (L/R = 40 ms)
Contact minimum recommended rating 12 V 100 mA
Contact type Normally open
Default contact condition Closed when power applied and drive OK
Update period 4 ms