ICM450 3 Phase Line Voltage Monitor - Delay on Break Timer, 0-10 Minutes (English)

ICM's line voltage monitors were specifically designed to protect compressor motors and other 3-phase loads from premature failure or damage due to common voltage faults. They offer complete system protection by monitoring both the line (front) and load (back) side of the system including the power, motor and contactor lines. In addition, an integral "delay on break timer" guards against rapid short cycling at both the control circuit and the 3 phase lines. Compact and easy to install, the ICM400 and ICM450 provide highly reliable protection for your valuable equipment.

Features

• Fully programmable with LCD diagnostic dispaly
• Easy to configure - simple push button setup
• Easy to customize - set points, variables and features are fully adjustable and may be defined by the user while in control SETUP mode
• 25 fault memory storage
• Independent high and low voltage settings ideal for dual voltage compressor applications
• Identifies front and back side faults
• Reset mode: choice of auto or manual
• Protects against voltage unbalance, high/low voltage, phase loss, reversal, faulty power, incorrect sequencing and rapid short cycling
• Reliable, high temperature LCD to 167 degrees F
• Simultaneous voltage display, no scrolling
• Line voltage programmable Universal voltage operation: 190-630 VAC

Mode of Operation:
At power up, the ICM450 evaluates the incoming power for proper phase sequence, amplitude, and symmetry (voltage unbalance). If the three phase input at the line side connections is within user-set parameters, the load energize LED is turned on and the internal relay is energized. Continuity will be across terminals 4 and 6. If connections are made to the load side terminals, the ICM450 will transfer monitoring over to the load side only.

When a critical fault condition (phase loss or phase reversal) is present, the relay will immediately de-energize, the load-energized LED will turn off, the fault LED will flash, and the fault is written to memory. Continuity will be across terminals 4 and 5.

If a non-critical fault condition (unbalance, high or low voltage) is present, the ICM450 will ignore it during the interrogation delay time. If it is still present following the interrogation delay time, the relay will de-energize, the load-energized LED will turn off, the fault LED will flash, and the fault is written to memory. Continuity will be across terminals 4 and 5.

The ICM450 will store the last 25 faults in memory. The relay will not energize if any fault conditions exist. The integral adjustable delay on break timer will prevent short cycling.