
USER MANUAL Document reference MAODS301/E
SpeedSys300 ODS301 overspeed detection system Edition 4 - May 2022
ii
REVISION RECORD SHEET
Edition Date
of issue
Written by /
modified by Description Signature
1 03.05.2021 Peter Ward Original edition. PW
2 25.06.2021 Peter Ward
Updated Figure 1-2, notably to include the bridge
(short-circuit) required on the magnetic sensor input.
Also updated the connector pinouts in 2.2 SpeedSys300
ODS301 module connectors (for consistency with the
labelling used by the updated Figure 1-2).
Changed the safety symbols in 3.2.12 Safety instructions –
potentially explosive atmospheres to “STOP” WARNINGs
(were “!” CAUTIONs).
Updated Appendix B: ATEX certifications:
Updated IBExU 20 ATEX 1157 (SpeedSys300 ODS301).
Updated Appendix F: SpeedSys300 ODS301 Modbus
register definitions to include some changes to Modbus
register definitions, notably he Modbus registers at
addresses: 0012,0108, 0563-0568, 3024, 4008,
4016-4019, 4500, 4512, 5026, 5046-5055, 5516-5554,
5638-5640 and 6004-6006. Also reformatted the tables
(Table F-xx) to improve readability.
PW
3 02.12.2021 Peter Ward
Updated the Interface diagram and connector pinouts
related to the power supply inputs and the serial
communications interface to use instrument earth /
GND (IE). See Figure 1-2, Ta ble 2-7 , Table 2 -8 and
Table 2-13.
Updated 3.2.2 Power supply and 3.2.3 Grounding, and
added 3.2.4 Shielding, in order to clarify power supply,
grounding and shielding requirements as per the technical
note (TN_SSY-20210729-1). Also added 3.2.8 Sensor /
input channel interface circuitry.
Updated Table 3-12 to correct 2oo3 voting logic using
safety relay 2 of SpeedSys300 ODS301 modules.
Pins B22 and B23 (safety relay 2) are now used instead of
the incorrect pins B18 and B19 (safety relay 1).
Added specifications for the SpeedSys300 ODS301
module’s screw-terminal connectors (see Tabl e 3 -1 3 ).
Added new information on SpeedSys300 software
language files in order to clarify their use.
See 4.2.1 Language pack files.
Updated 4.5.4 Example configuration files to include all
configuration files (*.ssy) included with the SpeedSys300
software.
Updated 4.6.1 Changing the Admin access level password
to include information on permitted passwords.
Updated 5.5.1 Diagnostics tab – Diagnostics to include
information on the recommended configuration of the
“Analog output readback difference” as per the service
bulletin (FSB_SSY-20210714-1).
Added 7 Electrical connections in order to provide a more
detailed wiring diagram for a typical SpeedSys300 ODS301
overspeed detection system (ODS) using a TQ9xx-based
proximity measurement chain.
…
PW