9
MiniCAS II supervision relay
Operational principle: Current Sensing
Approvals: CE, C-UR (covering USA and Canada)
Environment: –25 to 60°C (maximum 90% relative humidity)
Supply voltage: 20-30 VAC (50–60Hz)
23.5–30VDC
Relay contact rating: 250 VAC / 5A
Voltage to sensor: 12 VDC +/–5%
Values of operation: 3mA < I < 22mA = OK condition
I < 3mA = High temperature (or interruption)
I > 22mA = Leakage (or short circuit), 10 s delay of alarm
( I =
current measured by MiniCAS II
)
Power supply required: 5 VA
OPERATION
Leakage: Changeover contacts 11–8 Normally closed for interlock
11–9 Closes for alarm
Automatic reset
Red LED for indication – follows the relay
Red indication lamp on: Leakage
Red indication lamp off: No leakage
Temperature: Changeover contacts 1–3 Closes for interlock when energised
1–4 Normally closed for alarm
Manual reset (see below)
Red indication lamp on: Overtemperature
Red indication lamp off: Normal temperature
Reset of Temperature Alarm:
External reset is possible either by connecting terminals 6–2 with an external
push button or by interrupting the 24V supply
DIMENSIONS: Width 33 mm
Height 79 mm
Depth 75 mm
PART NO: 83 58 57
TECHNICAL DATA
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