MSC38A MOUNTING DIMENSIONS 4.990" Total height of control (including standoffs) is 2.750" 2.128" MADE IN THE
MSC38A HOOK-UP FOR DIRECT OPERATION For 0-5VDC through 0-25VDC, connect P3-1 to P3-2; For 0-25VDC through 0-200VDC, MSC38A Series connect P3-2 to P3-3 Master Speedpot Min Eight Channel Master Trimpot -3-2-1 P3 Speed Control AC1 Common AC2 High High A reliable, economical master speed control unit for operating Cascade Out Wiper Wiper Cascade In Low Low multiple variable speed drives from a single 5K master potentiom- Low Gain High Output to Output to Trimpot Wiper Wiper Control # 1 Control # 8 eter or field selectable DC voltage range of 0-5 through 0-25 VDC High Low Low High Output to Output to OR 0-25 through 0-200 VDC input (grounded or ungrounded). Wiper Wiper Control # 2 Control # 7 High Low Drives may be controlled to maintain identical speeds or Low High Output to Output to Wiper Wiper Control # 3 Control # 6 individually pre-set proportional speeds with respect to the MSC High Low Low High Output to Output to speed setting. Wiper Wiper Control # 4 Control # 5 High Low P1 P2 STANDARD FEATURES Optional DC Voltage Source (can be used in place ± UÊ£ÓäÊ6
Ê £ä¯]ÊxäÉÈäÊâ°Êˆ˜iÊÜÕÀVi of Master Speedpot) UÊ ˆ}…Ìʭ·܈Ài®ÊœÕÌ«ÕÌÊV…>˜˜iÃʇÊi>V…Êœ«ÌˆV>Þʈ܏>Ìi` UÊ- În
ʓ>ÞÊLiÊV>ÃV>`i`Ê̜ʜ«iÀ>ÌiʓœÀiÊ̅>˜ÊnÊ`ÀˆÛià UÊ>ÃÌiÀÊVœ““>˜`ʈ˜«ÕÌÊVˆÀVՈÌÊiiVÌÀˆV>Þʈ܏>Ìi`ÊvÀœ“Ê
INPUT HOOK-UP FOR RATIO OPERATION UÊ,>«ˆ`ÊÀi뜘ÃiÊ̈“i RATIO CONTROL UNIT UÊ ÕÀœ«i>˜ÊÃÌޏiÊÌiÀ“ˆ˜>ÊLœVŽÊVœ˜˜iV̜Àà CONTROL (i.e. 500, 250, 125 SERIES LOW UÊ-Õ««ÞÊۜÌ>}iʜvÊ`ÀˆÛi˜Ê՘ˆÌʈÃÊx‡ÓxÊ6 ʓ>݈“Õ“ SPEEDPOT LO UÊxʜ…“Êëii`«œÌÊ܈̅ʏi>`Ã]Ê`ˆ>]Ê>˜`ʎ˜œLÊvœÀÊÀi“œÌiÊ 10K-250K SPEEDPOT WIPER mounting included OHM approx. FROM 5K MSC SPEEDPOT HI UʘÌiÀv>ViÃÊ܈̅Ê>ÀÌÊ£Óx]ÊÓxä]ʜÀÊxääÊÃiÀˆiÃÊVœ˜ÌÀœÃʜÀʓœÃÌÊ WIPER + ARMATURE œÌ…iÀʓ>˜Õv>VÌÕÀiÀ½ÃÊ`ÀˆÛià - ARMATURE HIGH UÊ"ÕÌ«ÕÌÃÊ>ÀiÊVœ˜ÌÀœi`Êۈ>Ê>Êxʜ…“Ê“>ÃÌiÀÊëii`«œÌʜÀÊ>Êwi`Ê + FIELD ÃiiVÌ>LiÊ ÊۜÌ>}iÊÈ}˜>Ê­ä‡xÊ̅ÀœÕ}…Êä‡ÓxÊ 6 Ê",Êä‡ÓxÊ̅ÀœÕ}…Êä‡ÓääÊ6 ® - FIELD UÊ >V…ÊœÕÌ«ÕÌʈÃÊV>«>LiʜvÊ`ÀˆÛˆ˜}ʈ˜«ÕÌʈ“«i`>˜ViÃÊ>ÃʏœÜÊ SPARE as 500 ohm SPARE AC INPUT DIMENSIONAL SPECIFICATIONS AC INPUT WIDTH HEIGHT LENGTH WEIGHT English (inches) CASCADE HOOK-UP FOR BASIC CONTROLS ΰ£ÎÊ Ó°£ÎÊ x°{äÊ Ç°{ʜâ Master Metric (centimeters) Speedpot 7.95 5.41 13.73 208.3 gm Common Common Common OPERATING CONDITIONS Temperature .................................‡£äcÊ̜ʳ{xcÊ °Ê­£xcÊ̜ʣ£ÎcÊ°® ± AC Input Voltage ................................... £ä¯Ê,>Ìi`ʈ˜iÊ6œÌ>}i MSC # 1 MSC # 2 MSC # 3 Input Frequency ..........................................................xäÉÈäÊiÀÌâ Output Voltage .....................ä‡xÊ̅ÀœÕ}…Êä‡ÓxÊ6 Êi>V…ÊV…>˜˜i Output Current ................................................ 10 mA per channel Cascade Out Cascade In Cascade In For more than 8 outputs using a single Master speedpot, controls can be cascaded together via the cascade and common terminals shown above. 42 www .dartcontrols.com e s a e r c n i