Future Design L62 Limit Controller
Limit Controllers with cUL, FM, CE Approvals
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The L22, L62 & L42 are FM approved limit controller that can be configured either as a high limit or as a low limit controller.
These limit controllers are powered by an 11-26 or 90-250 VDC / VAC supply, incorporating a 2 Amp relay output as a standard. The second output can be used as an alarm. Both outputs can be selected as a 5VDC or 14VDC logic output to drive an external device. The limit controllers can be incorporated with two event inputs, up-to-3 alarm outputs, RS-485 communication, retransmission voltage or current output.
The limit controllers are fully programmable for linear current, linear voltage, Pt100 and thermocouple types J, K, T, E, B, R, S, N, L, U, P, C, and D. The input signal is digitized by using an 18-bit A to D converter. Its fast-sampling rate allows the
limit controller to protect fast processes.
Features:
- LCD display
- Configurable display logic -SAFE
- Universal input
- High accuracy 18 Bit A-D Conversion and
- 15 Bit D-A Conversion
- Up-to-2 event inputs with multiple functions
- Remote reset
- Remote lock
- RS-485 communication
- Lockout protection
- Bidirectional menu navigation
- Field calibration
- °C / °F temperature measurements
- DIN rail mount option
- cUL, FM, CE Approvals
Options:
- Power Input:
- 90-250VAC 47-63 HZ
- 11-40 VDC / 20-28 VAC (optional)
- Input sample rate - 5 scans/second
- Analog Inputs:
- Universal Analog Input, Thermocouple, RTD, mA, VDC and mV.
- Event Inputs (optional): The L22 offers 1 with L62 & L42 offering 2 Event Inputs.
- Functions Listed Below with descriptions above
- LoCK: Selects the remote lock function.
- R.RSt Selects the remote reset function.
- H.SP2 Activates high limit set point 2.
- L.SP2 Activates low limit set point 2
- H.L.S2 Activates high and low limit set point 2
- H.SP3 Activates high limit set point 3.
- L.SP3 Activates low limit set point 3.
- H.SP3 Activates high limit set point 3.
- H.L.S3 Activates high and low limit set point 3.
- RS.A1 Selects the reset alarm 1 function
- RS.A2 Selects the reset alarm 2 function.
- RS.A3 Selects the reset alarm 3 function.
- RS.Ao Selects the reset all alarms function.
- CA.LH Selects the cancel alarm latch function
- Functions Listed Below with descriptions above
- Limit Control Output #1 - Latching: Configurable as High Alarm, Low Alarm or combination High-Low Alarm Setpoint with one digital output. Available Digital Outputs:
- Relay: 2A/240 VAC resistive [SPST]
- SSR Driver: 5VDC/30mA or 14VDC/40mA
- Output #2 is available with one of the following options: Digital Output [relay, triac or ssr driver] transmitter power supply, communications.
- Digital Outputs are same as output #1
- Transmitter Power Supply [Isolated];
- 20 VDC/25mA
- 12 VDC/40mA
- 5 VDC/80mA
- Output #3 is limited to L62 & L42
- L22: Not available
- L62: Relay 2A form A SPST is mutually exclusive with Communications Retransmission
- L42: Relay 2A form A SPST
- Communications: not mutually exclusive, all may be ordered except for L62 with Output #3
- Digital Event Input (EI): L22 one EI with L62 & L42 two EI
- RS485 Modbus Communication with access to all parameters.
- Retransmission Linear of Process Value (temperature) or Setpoint Value
-
Configurable Display when not in alarm condition Setpoint or when not in alarm condition the word SAFE.
- When in Alarm display defaults to SP (setpoint) with output 1 latched closed and front panel Out1 annunciation energized.
Resources:
- L22/L62/L42 Hi Limit Controller Brochure
- L62 1/16DIN Hi Limit Controller Manual
- L22/L62/L42 Hi Limit Controller Part Number Matrix (List Price 2024)
- Approvals:
