SI-IO

Description

Unidrive M’s extended I/O interface module increases the number

of I/O points on a drive. All connections from the option module

to the drive are made via the drive connector. Connections from

external equipment to the SI-I/O are made via a 3-way pluggable

screw connector for the two relays and an 11-way pluggable screw

connector for the digital and analog I/O.

Features include:

• 4 x Digital inputs/outputs

• 3 x Analog inputs (default) / Digital inputs

• 1 x Analog output (default)* / Digital input

• 2 x Relays

Digital I/O

By default, the SI-I/O Module is set up for four programmable

digital inputs/outputs. By configuring the analog I/O as

digital inputs, it is possible for the SI-I/O module to have four

programmable inputs/outputs and also four digital inputs.

The functionality of these terminals is as follows:

• The logic sense selected can be positive (default) or negative

• The logic state of each input is monitored by a read-only

parameter

• The logic state can be inverted

• The digital input can be programmed to any suitable

destination bit parameter

• The digital output can be sourced from any suitable bit

parameter

• The outputs can operate either as a push-pull or an open

collector output

The SI-I/O has a maximum output current of 250 mA at 24 V

across all four digital outputs.

Analog I/O

By default, the SI-I/O is set-up for three single-ended analog

inputs and one analog output or one high resolution* differential

analog input*, one single-ended analog input and one analog

output.

Analog inputs 1 and 2 can only be configured as ±10 Vdc voltage

inputs or digital inputs. When both are configured as analog

voltage inputs, they can be used as a single high resolution

differential analog input.

Analog input 3 can operate in voltage mode (±10 Vdc), current

mode (0 to 20 mA) or as a digital input.

Analog output 1* can operate in voltage mode (±10 Vdc),

current mode (0 to 20 mA) or as a digital input.

Relays

The two relays can be used to convey the logic state of any

suitable parameter to external equipment. The logic state is

processed as follows:

• A suitable source parameter is assigned to each relay

• The logic state can be inverted

• The state of the relay is monitored by a parameter

Compatible with Unidrive M200/M201/M300/M400/M600/M700/M701/M702