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| Optidrive ODP-2 Solar Pump User Guide |
Version 2.04
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6.
230 Volt, 1 phase input drives using internal EMC filter. Other models require external EMC filter.
7.
Compliance with category C1 conducted emissions only is achieved. For compliance with category C1 radiated emissions,
additional measures may be required, contact your Sales Partner for further assistance.
8.
EMC categories for drives with internal filter EMC filter and rated voltage less than 480 Volts. For other drives, additional EMC
filtering is required.
9.
Permissible cable length with additional external EMC filter.
4.10.3. Enclosed Drives Recommended Cable Connections
IP55
IP66
L1 L2 L3
U V W
+DC BR -DC
For Best-Practice use 360°
bonding IP66 (or higher)
EMC cable gland shielded
to drive chassis.
U V W
4.11. Safe Torque Off
Safe Torque OFF will be referred to as “STO” through the remainder of this section.
Note:
If the ‘Safe Torque Off’ funtion is not required, then you must link out of the terminals to enable the drive as shown in section
6.2.10. Operation with a Float-switch
4.11.1. Responsibilities
The overall system designer is responsible for defining the requirements of the overall “Safety Control System” within which the drive
will be incorporated; furthermore the system designer is responsible for ensuring that the complete system is risk assessed and that the
“Safety control System” requirements have been entirely met and that the function is fully verified, this must include confirmation testing
of the “STO” function before drive commissioning.
The system designer shall determine the possible risks and hazards within the system by carrying out a thorough risk and hazard
analysis, the outcome of the analysis should provide an estimate of the possible hazards, furthermore determine the risk levels and
identify any needs for risk reduction. The “STO” function should be evaluated to ensure it can sufficiently meet the risk level required.
4.11.2. What STO Provides
The purpose of the “STO“ function is to provide a method of preventing the drive from creating torque in the motor in the absence
of the “STO“ input signals (Terminal 12 with respect to Terminal 13), this allows the drive to be incorporated into a complete safety
control system where “STO“ requirements need to be fulfilled.
1
The “STO“ function can typically eliminate the need for electro-mechanical contactors with cross-checking auxiliary contacts as per
normally required to provide safety functions.
2
The drive has the “STO“ function built-in as standard and complies with the definition of “Safe torque off“ as defined by IEC 61800-5-
2:2007.
The “STO“ function also corresponds to an uncontrolled stop in accordance with category 0 (Emergency Off), of IEC 60204-1. This
means that the motor will coast to a stop when the “STO” function is activated, this method of stopping should be confirmed as being
acceptable to the system the motor is driving.
The “STO“ function is recognised as a fail-safe method even in the case where the “STO“ signal is absent and a single fault within
the drive has occurred, the drive has been proven in respect of this by meeting the following safety standards:
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Elec
trical Installation
