User manual DALLEE ELECTRONICS ENGINEER

[. . . ] The pulse frequency is varied automatically according to the demand established by the ENGINEER's output voltage level. The ENGINEER has a four position brake switch which simulates most operating functions including acceleration, deceleration and/or braking and continuous running. This brake switch, together with the reverse interlock feature are combined in the optional WALK-A-ROUND controller to permit walk around control, with memory, of the ENGINEER from any number of remote plug in locations. DESCRIPTION AND LOCATION OF COMPONENTS AND CONTROLS On the rear face of the ENGINEER you will find the power cord, a resettable circuit breaker and a barrier strip with two terminals. These two terminals are for the output to the track. [. . . ] A simple rule to follow: the longer the wire and the larger the load(current draw), the heavier the wire should be to minimize line loss(voltage drop) between the throttle and the track. It may be advisable to use wire as large as #8 or #10 to get the full use of the high current capabilities of your ENGINEER. Put the BRAKE switch in EMERGENCY and rotate all controls to their full counter-clockwise position. Connect the power cord to a grounded household line outlet (110-120 VAC) and push the top part of the power switch. If it does not, check the power cord and plug, the outlet receptacle and the household line circuit. With power on the ENGINEER, the first step is to adj ust the pulse circuit to match the motor in the locomotive selected. 1) Check - - - brake in EMERGENCY and all controls full counter-clockwise. 2) Release brake and rotate pulse control clockwise until locomotive just begins to creep. If pulse is set too high the motor will be noisy. It may be necessary to increase the SPEED control very slightly in order to get the pulses to turn on. 3) Set both throttle and brake response to about 9 or 10 o'clock to provide some momentum delay. 4) Increase speed control clockwise - - - acceleration should be smooth. Set speed control at 12 o'clock and let speed increase. 5) Make a service brake application to a full stop and watch for a smooth deceleration. Watch meters for evidence of pulses as stop is approached. 8) If the start and stop are sudden the pulses are probably set too low. If the start and stop are jerky or the motor is noisy the pulses 4 are set too high and should be lowered. (Note: 3 pole motors will always be somewhat jerky in operation as compared to a 5 or 7 pole motor) Also, some mechanisms j ust are not smooth enough to appreciate the full effect of the pulse circuit. 9) Fine adjust the pulses until you are satisfied with the smoothness of operation. 10) Pulse settings will vary from locomotive to locomotive because of differences in motor and gear tolerances, however these settings are unique and should be repeatable every time a specific locomotive is run. With the pulses adj usted to match the locomotive, lets practice actual operation. Initially we will operate just the locomotive so the response settings (both throttle and brake) should be at or close to minimum. [. . . ] With practice you will become an accomplished engineer with your ENGINEER. WALK AROUND OPTION The ENGINEER is equipped with a 9 pin jack on the front where the optional hand control for walk around operation plugs in. The hand control duplicates the reverse, brake and both response controls of the ENGINEER. The hand control has a ten foot cord with the correct plug. Any number of 9 pin j acks can be located around the layout as long as they are parallel wired to a plug back at the ENGINEER. [. . . ]