ENABLING UNIT OF TEACHING PENDANT

摘要

A first enable signal circuit (C1), a second enable signal circuit (C2), a first monitor circuit (C3) and a second monitor circuit (C4) constituted of contacts of left and right dead man switches (1a, 1b) and relays (R1, R2) are provided. The first monitor circuit (C3) and the second monitor circuit (C4) are supplied with power from an inner power supply (2) through a main switch (15).