18
Special
Functions
The heater break alarm option detects failures in the load or power handler and provides an alarm output. It
uses an external current transformer to monitor the load current. If the load current falls below a set current
value, the alarm output is activated.
With this option, a heater current reading [ Ht.rd ] from a current transformer is displayed at menu level “04”,
along with the preset Heater Current Alarm Setpoint Value [ Ht.SP ], either 00-30 A or 00-60 A.
.29 Dia. Opening
INDICATING RANGE: 2 thru 100 A
MAX. CONT. CURRENT: 100 A
MAX. TRANSIENT CURRENT: 150 A for 5 sec.
WORKING CLASS: 600 • FREQUENCY: 50-60 Hz
WEIGHT: .5 Oz (14 grams)
LEAD WIRE: #22 AWG UL Style 1213
CASE COLOR: Black • CASE MATERIAL: Thermoplastic
The Heater Break Alarm option is not available on controllers with an “F” type output.
With the Heater Break Alarm option, cycle time is limited to greater than 2 seconds.
Figure 15. Wiring Diagram for Heater Break Alarm
Figure 14. Current Transformer Supplied with Heater Break
Alarm Option, Part # 580E023UOI
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