Version 1.00 | Optidrive CoolVert User Guide | 43www.invertekdrives.com
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Technical Data
Control Specification
Output Voltage 0 - Vin
PWM Frequency 4 – 32kHz
Stop Mode Ramp to stop, Ramp to minimum speed then coast to stop, Coast to stop
Skip Frequency 2 skip frequencies, user adjustable
Control Modes Modbus RTU (RS485)
Terminal Control Digital / Analogue
Terminal Control PI mode
Master / Slave Mode
I/O Specification
Power Supply 24 Volt DC, 100mA, Short Circuit Protected
Digital Inputs 1 (24V Positive Logic)
Analogue Inputs 1 (0-10V, 0-20mA, 4-20mA, PTC)
Relay Outputs 1 (AB type)
Maximum Voltage 250VAC, 30VDC
Switching Current Capacity: 6A AC, 5A DC
Resistive Load
Safe Torque Off (STO) Independently approved STO input
Safe Torque Off (STO)
IEC 61800-5-2:2016 SIL 3
EN ISO 13849-1:2015 PL “e”
EN 61508 (Part 1 to 7): 2010 SIL 3
EN 60204-1: 2006 & A1: 2009 Cat 0
EN 62061: 2005 & A2: 2015 SIL CL 3
Application Features
PI Control Internal PI Controller.
3 - step start-up profile Start-up profile configurable with up to 3-steps to reduce the risk of oil migration and
support better charge distribution in the system.
Compressor start-up protection Several configurable built-in compressor protection features including Minimum
Compressor On Time, Minimum Compressor Off Time and Compressor Restart Delay.
Intelligent Drive Thermal
Management
Reduced-load operation of the compressor can be configured under high drive
temperatures to prevent nuisance tripping.
Intelligent Motor Thermal
Management
Reduced-load operation of the compressor can be configured under continued motor
overload to prevent nuisance tripping.
Serial Communications-Loss Fall-
Back Speed
The ability to configure the drive to run at a ‘safe’ speed in the event of a loss of serial
communication. Can prevent loss of cooling/heating.
Master Follower Configuration The ability to run a cascade of compressors with one Master regulating the operating point
in PI Control.
Maintenance & Diagnostics
Fault Memory Last 3 trips stored with time stamp
Data Logging Logging of data prior to last trip for diagnostic purposes:
Output Current
Drive Temperature
DC Bus Voltage.
Monitoring Hours Run Meter
kWH
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