Unit features include:
• Operation switch (on/off)
• Short-circuit and overload protection with test function
• Manual reset function
30 Ampere, Fuse-Protected Terminals
• 3-phase power matching incoming mains voltage for powering auxiliary customer equipment
• Not available if two manual motor starters are selected
• Terminals are off when the incoming power to the drive is off
• Power for the fused protected terminals will be provided from the load side of any supplied contactor, circuit breaker, or disconnect switch.
24 VDC Power Supply
• 5 amp, 120 W, 24 VDC
• Protected against output over-current, overload, short circuits, and over-temperature
• For powering customer-supplied accessory devices such as sensors, PLC I/O, contactors, temperature probes, indicator lights, and/or other
electronic hardware
• Diagnostics include a dry DC-ok contact, a green DC-ok LED, and a red overload LED
External Temperature Monitoring
Designed for monitoring temperatures of external system components, such as the motor windings and/or bearings. Includes eight universal input modules
plus two dedicated thermistor input modules. All ten modules are integrated into the drive’s safe-stop circuit and can be monitored via a fieldbus network
(requires the purchase of a separate module/bus coupler).
Universal inputs (8)
Signal types:
• RTD inputs (including Pt100), 3-wire or 4-wire
• Thermocouple
• Analog current or analog voltage
Additional features:
• One universal output, configurable for analog voltage or analog current
• Two output relays (N.O.)
• Dual-line LC display and LED diagnostics
• Sensor lead wire break, short-circuit, and incorrect polarity detection
• Interface setup software
Dedicated thermistor inputs (2)
Features:
• Each module capable of monitoring up to six thermistors in series
• Fault diagnostics for wire breakage or short-circuits of sensor leads
• ATEX/UL/CSA certification
• A third thermistor input can be provided by the PTC Thermistor Option Card MCB 112, if necessary
3 VLT HVAC Drive Selection VLT
®
HVAC Drive Design Guide
60
MG.11.B9.02 - VLT
®
is a registered Danfoss trademark
3
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