Ingersoll-Rand 302 SERIES - Input;Output and Communication Interfaces

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Protection and Features:
• Electronic thermal motor protection against overload.
• Temperature monitoring of the heatsink ensures that the frequency converter trips if the temperature reaches a
predefined level. An overload temperature cannot be reset until the temperature of the heatsink is below the values
stated in the tables on the following pages (Guideline -these temperatures may vary for different power sizes,
frame sizes, enclosure ratings etc.).
• The frequency converter is protected against short-circuits on motor terminals U, V, W.
• If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).
• Monitoring of the intermediate circuit voltage ensures that the frequency converter trips if the intermediate circuit
voltage is too low or too high.
• The frequency converter constantly checks for critical levels of internal temperature, load current, high voltage on
the intermediate circuit and low motor speeds. As a response to a critical level, the frequency converter can adjust
the switching frequency and/ or change the switching pattern in order to ensure the performance of the drive.
Digital inputs:
Programmable digital inputs 4 (6)
1)
Terminal number 18, 19, 27
1)
, 29
1)
, 32, 33
Logic PNP or NPN
Voltage level 0 - 24 V DC
Voltage level, logic'0' PNP < 5 V DC
Voltage level, logic'1' PNP > 10 V DC
Voltage level, logic '0' NPN
2)
> 19 V DC
Voltage level, logic '1' NPN
2)
< 14 V DC
Maximum voltage on input 28 V DC
Pulse frequency range 0 - 110 kHz
(Duty cycle) Min. pulse width 4.5 ms
Input resistance, Ri approx. 4 kΩ
Safe stop Terminal 37
3)
(Terminal 37 is fixed PNP logic):
Voltage level 0 - 24 V DC
Voltage level, logic'0' PNP < 4 V DC
Voltage level, logic'1' PNP >20 V DC
Nominal input current at 24 V 50 mA rms
Nominal input current at 20 V 60 mA rms
Input capacitance 400 nF
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.
1) Terminals 27 and 29 can also be programmed as output.
2) Except safe stop input Terminal 37.
3) Terminal 37 is only available in Ingersoll Rand 302 Series VFD with Safe Stop. It can only be used as safe stop input.
Terminal 37 is suitable for category 3 installations according to EN 954-1 (safe stop according to category 0 EN 60204-1) as
required by the EU Machinery Directive 98/37/EC. Terminal 37 and the Safe Stop function are designed in conformance
with EN 60204-1, EN 50178, EN 61800-2, EN 61800-3, and EN 954-1. For correct and safe use of the Safe Stop function
follow the related information and instructions in the Design Guide.
4) Ingersoll Rand 302 Series VFD only.