Keithley 500 936 01C free download

File name 500_936_01C.pdf

PCMl AC Power Control Module The PCMl AC Power Control Module is designed to switch on and off AC line devices - motors, contactors, lamps, and solenoids - without disturbing the operation of the computer or the Series 500. The PCMl consists of two elements: the KM1 card, which plugs into the Series 500 baseboard, and a remote signal connection unit. All AC connection and switching takes place at the remote unit, keeping potentially dangerous and noisy AC voltage outside of the system case. An eight-foot ribbon cable links the remote unit to the plug-in module. The PCMl provides four channels of AC switching output, with each channel accepting power signals of I2 to 140V AC, at up to 3A. These channels are switched by solid state relays (with full optical isolation to 1OOOV AC), and are short-circuit protected by fuses. The remote unit has screw terminals for signal connection, and LED's to indicate the status of each channel. The KM1 module may be installed in any available slot. WARNING: The remote unit should not be handled unless all AC power has been removed. Mount the remote assembly in an enclosure for maximum safety. CAUTION: Always turn off the power before installing or removing modules. To minimize the possibility of EM1 radiation, never operate the system with the main- frame cover removed. User-Configured Components The KM1 has two user-configured components: the cable which connects the plug-m PCMl module to its remote connection unit, and the screw terminals for signal connec- tion (see Table 1). The linking cable is a lo-contact, flat ribbon cable with connectors at either end. To in- stall the cable, the small arrows on the cable connectors must be matched with similar arrows on the module connector and the remote unit connector. Jl31 is the jack on the interface board, while Pl.32 is the plug on the remote board. The connectors are keyed so that they can be installed only one way. The screw terminals located on the remote unit accept 16-24 gauge leads stripped 3116 of an inch. WARNING: Dangerous user-supplied voltages may be present on the remote unit. Use normal safety precautions when using the PCMl module. Document Number: 500-936-01 Rev. C PCMl-1 Table 1. User-Configured Components on the PCMl Module Name Designation Function Screw Terminals J135 Screw terminals for signal connection Cable 1 CBl Linking cable between plug in module and remote