MTL4604 SWITCH/ PROXIMITY DETECTOR INTERFACE 1-channel with LFD and phase reversal.

The MTL4604 enables a load to be controlled, through a relay, by a proximity detector or switch. Line faults are signalled through a separate
relay and indicated on the top of the module. MTBF information for the LFD relay is available from Eaton to allow the failure rate for the LFD
relay to be calculated when used in the critical path with the output relay for safety critical applications. Switches are provided to select
phase reversal and to enable the line fault detection.

SPECIFICATION
See also common specification
Number of channels
One
Inputs
Inputs conforming to BS EN60947–5–6:2001 standards for
proximity detectors (NAMUR)
Voltage applied to sensor
7 to 9V dc from 1kΩ ±10%
Input/output characteristics
Normal phase
Outputs closed if input > 2.1mA (< 2kΩ in input circuit)
Outputs open if input < 1.2mA (> 10kΩ in input circuit)
Hysteresis: 200µA (650Ω) nominal
Line fault detection (LFD) (when selected)
User-selectable via switches on the side of the unit. Line faults are
indicated by an LED. Line fault relay is de-energised and channel
output relay de-energised if input line-fault detected
Open-circuit alarm on if Iin < 50µA Open-circuit alarm off if Iin > 250µA
Short-circuit alarm on if Rin < 100Ω Short-circuit alarm off if Rin > 360Ω
Note: Resistors must be fitted when using the LFD facility with a contact input
500Ω to 1kΩ in series with switch
20kΩ to 25kΩ in parallel with switch
Output
Channel: Single pole relay with changeover contacts
LFD: Single pole relay with changeover contacts
Note: reactive loads must be adequately suppressed
Relay characteristics
Response time: 10ms maximum
Contact rating: 10W, 0.5A, 35V dc
LED indicators
Green: power indication
Yellow: channel status, on when output energised
Red: LFD indication, on when line fault detected
Maximum current consumption
25mA at 24V dc
Power dissipation within unit
0.6W at 24V

Model for example
MTL4604
MTL4610
MTL4611
MTL4614
MTL4614D
MTL4616
MTL4617
MTL4619H
MTL4619L
MTL4621
MTL4623
MTL4623L
MTL4623R
MTL4624
MTL4624S
MTL4626
MTL4627
MTL4628
MTL4641
MTL4641A
MTL4641AS
MTL4641S
MTL4644
MTL4644A
MTL4644AS
MTL4644D
MTL4644S
MTL4646
MTL4646Y
MTL4649
MTL4649Y
MTL4675
MTL4676-RTD
MTL4676-THC
MTL4632

MTL4604 SWITCH/ PROXIMITY DETECTOR INTERFACE 1-channel with LFD and phase reversal