User manual LIFT-MASTER LM90 MODEL AB

[. . . ] LISTED GENERAL DESCRIPTION: CANADIAN LISTED CSFM: 7300-1418:100 S/N:_______________ These Time Delay Release Devices are U. L. Listed, Canadian Listed, and CSFM Listed for use on rolling doors, single-slide and center parting level and inclined track doors. All models are normally energized Fail-Safe Releasing Devices incorporating state of the art electronic control circuitry. The devices respond to emergency conditions generated by manual or automatic normally closed initiating devices and shall be used in conjunction with a temperature fuse link system. [. . . ] Connect motor control sensing voltage (24vac) from motor controller transformer secondary to TB2 screws 1 & 2. Normally open lower limit/proximity switch (closes in down limit). Remove jumper & use TB1-6&7 for a N/C which opens in down limit. * Note: Electrical loop must be provided as dry contacts and may not be used in conjunction with the simultaneous switching of a motor control or any other voltage through the same contacts. Connections of this type will result in immediate damage to the release device. Verify all connections made within unit. Close hinged cover and secure screw on lid after all connections are made. DO NOT LEAVE COVER OPEN AFTER CONNECTIONS ARE MADE 4 "LM90" SERIES RELEASE DEVICE ELECTRICAL CHARACTERISTICS OPERATING VOLTAGES MODEL LM90-X-24DC . . . . . . . . . . . . . 24VAC +/- 10% LM90-X-120AC . . . . . . . . . . . . . 120VAC +/- 10% CURRENT REQUIREMENTS MODELS A & B (X) LM90-X-24DC . . . . . . SUPERVISORY . 050A ALARM . 075A MAX LM90-X-24AC . . . . . . SUPERVISORY . 100A ALARM . 075A MAX LM90-X-120AC . . . . . . SUPERVISORY . 050A ALARM . 075A MAX * NOTE: Inrush current shall not exceed 3 times rated current on any model. MOTOR CONTROL SENSE - ALL MODELS INITIATING/DOOR INPUTS Input Voltage: 24V ac/dc typical +15% / -10% Input Current: Not to exceed . 004A CAUTION: All initiating devices shall be dry contact type only Maximum loop resistance: 100 Ohms Maximum current: Not to exceed . 002A Maximum voltage: 15Vdc FORM C OUTPUT (MAXIMUM CONTACT RATING) FUSE RATINGS- ALL FUSES 2A/15Vdc 30 Watt DC Resistive Load Only . 75 AMP @250V 2AG FAST ACTING TYPE "LM90" SERIES RELEASE DEVICE MECHANICAL CHARACTERISTICS MECHANICAL- LOAD RATING Support and release: 40LB. MAXIMUM DIMENSIONS 7 1/2" x 8 " x 4" (H x W x D) 5 ELECTRICAL CONNECTIONS - FIGURE 4 FOUR WIRE- INDEPENDENT ALARM & POWER LOSS DELAYS Refer to Section C - Electrical Connections pages 2&3 for complete wiring instructions (2) Initiating Device (Smoke detector, etc. ) (+) (3) Input power (-) End of line relay (8) Per U. L. 864 PC MOUNT (4) (1) Model B Only (Dotted area connections) Break wire for proper supervision. Do not loop wire around terminals (1)(4)(6) } Down Limit Detection TROUBLE RELAY (unit de-energized) MOTOR SENSE (control voltage sample) 24 V AC/DC PC MOUNT (+) (+) (-) CHASSIS MOUNT Chassis ground Refer to Section C - Electrical Connections pages 2&3 for complete wiring instructions pertaining to illustrations 4 and 4A (1) Dotted line indicates factory jumper which must be removed when connecting the N/C device. (2) See NFPA 80 and NFPA 92-1993 for proper placement. (3) Verify input voltage to madel being used. (5) Jumper must remain installed for two wire installation. (6) Jumper must remain installed if not using this option. (7) All fuses 3/4 A @ 250V, 2AG Fast Acting (8) End of line relay as per U. L. [. . . ] Red LED is on, but unit does not release door after alarm or power loss delay. A) N/C Alarm loop is not connected properly to TB1. Continuity test on wires should be zero ohms (short) back to initiating device. Place smoke detector in alarm and verify that dry contacts open on alarm. B) Unit is detecting down limit (Model B only). [. . . ]