Description
TURCK
IM1-22EX-R
ISOLATING SWITCHING AMPLIFIER
UL RATING: 20…250 VAC/20…30 VDC < 3W
NO: NORMALLY OPEN MODE
NC: NORMALLY CLOSED MODE
WB: WIRE BREAK DETECTION ON
SC: SHORT-CIRCUIT DETECTION ON
PWR: LED GN – POWER ON
1,2: LED YE – RELAY ENERGISED
OFF/AUS – RELAY DE-ENERGISED
LED RD – FAULT IN INPUT CIRCUIT
FEATURES:
2 RELAY OUTPUTS (NO)
OUTPUT MODE ADJUSTABLE (NO/NC MODE)
INPUT CIRCUITS MONITORED FOR WIRE-BREAK/ SHORT-CIRCUIT (ON/OFF SWITCHABLE)
SIL 2
COMPLETE GALVANIC ISOLATION
INPUT REVERSE-POLARITY PROTECTED
INSTALLATION IN ZONE 2
TECHNICAL SPECIFICATIONS:
OPERATING VOLTAGE: 20…250 VAC
FREQUENCY: 40…70 HZ
OPERATING VOLTAGE: 20…125 VDC
POWER CONSUMPTION: ≤ 3 W
POWER DISSIPATION: TYPICAL ≤ 0.98 W
OUTPUT CIRCUITS (DIGITAL): 2 X RELAYS (NO)
OUTPUT SWITCHING VOLTAGE RELAY: ≤30 VDC / Ð 250 VAC
SWITCHING CURRENT PER OUTPUT: ≤ 2 A
SWITCHING CAPACITY PER OUTPUT: ≤ 500 VA/60 W
SWITCHING FREQUENCY: ≤ 10 HZ
The Turck IM1-22EX-R is an isolating switching amplifier within the signal interface of a marine control system. It takes signals from field input circuits and passes them to two relay outputs, with complete galvanic isolation between the two sides. Input circuits are monitored for wire break and short circuit, each check switchable on or off, and output mode can be set to normally open or normally closed. The unit is SIL 2 rated, suitable for installation in Zone 2 and runs on 20-250 V AC or 20-125 V DC. Status LEDs show power, relay state and input faults. It is supplied new without box.
Key Features
✓ 2 relay outputs (NO), up to 2 A per output
✓ Output mode adjustable between NO and NC
✓ Wire-break and short-circuit input monitoring, switchable on/off
✓ SIL 2 with complete galvanic isolation and reverse-polarity protected input
✓ 20-250 V AC (40-70 Hz) or 20-125 V DC supply, ≤ 3 W
Marine Applications
✓ Isolating level and limit switch signals in tank monitoring
✓ Signal interfacing for safety shutdown loops up to SIL 2
✓ Relay interfacing between field sensors and the alarm and monitoring system
✓ Contact inputs from Zone 2 areas such as pump rooms
Technical Support
Prota Marine provides technical support, repair and onboard installation for the isolating switching amplifier and the wider marine control system. Support covers fault diagnosis using the input fault LED and relay status indications, followed by commissioning support when the amplifier is returned to service.
