Installation And Mounting Of The Si-Safety Module; Connecting The Sensor Power Supply; Connection Of Digital Inputs Smf11 To Smf42 And E0.5 - Emerson Unidrive M Installation And Operating Manual

4.2

Installation and mounting of the SI-Safety module

The module can be mounted on any of the solution module slots on the drive.
The module must be electrically isolated during installation work.
WARNING
The control circuits are isolated from the power circuits in the drive by basic insulation
(single insulation) only. The installer must ensure that the external control circuits are
insulated from human contact by at least one layer of insulation (supplementary
insulation) rated for use at the AC supply voltage.
WARNING
4.3

Connecting the sensor power supply

The SI-Safety module supports sensor supply voltages of 5 V, 8 V, 10 V, 20 V and 24 V
which are monitored internally in accordance with the selected configuration.
For every sensor system, the relevant supply voltage must be connected to the HDMI
bush and then configured in accordance with the sensor dialogue for the 'CTSafePro'
tool.
The drive can be used to provide the encoder supply (an encoder adapter module is
available from Control Techniques to simplify this wiring configuration). Alternatively the
supply can be connected directly to an HDMI connector. Refer to Table 4-3 Encoder
interface HDMI on Page 39
The supply for encoder 2 can alternatively be connected directly to the SI-Safety
module I/O connector. Refer to Table 4-2 Input output interface on Page 37.
The sensor power supply requires protection of 2 A maximum.
Table 4-1 details the monitoring of the supply voltage in accordance with the selected
nominal voltage.
Table 4-1 Supply voltage monitoring
Nominal voltage
4.4

Connection of digital inputs SMF11 to SMF42 and E0.5

The input limitation to PELV\SELV devices is:
• DC devices: 120 V
• AC devices: 25 V
The SI-Safety module has four dual channel safety inputs (SMF11/12, 21/22, 31/32, 41/
42) and one single channel safety input. These inputs are suitable for the connection of
one or two channel inputs with and without clocking action, i.e. without cross-fault
checking.
The inputs must have a 'High' level of 24 Vdc (+11 Vdc to +30 Vdc) and a 'Low' level of
(-3 Vdc to +5 Vdc, Type 1 in accordance with EN 61131-2). These inputs are provided
with internal input filters.
SI-Safety Installation & Operating Manual
Issue Number: 1
5 V
8 V
10 V
15 V
24 V
Minimum voltage
4.4 V
7 V
8 V
12 V
20 V
Maximum voltage
5.6 V
9 V
12 V
18 V
29 V
35