（4）圆工作台的控制
在使用圆工作台时，将控制开关SA2扳至“接通”位置，此时
SA2-2接通而SA2-1、SA2-3断开。圆工作台的旋转运动也是由进
给电动机M2拖动。在主轴电动机M1起动的同时，KM3通电，使
M2正转，带动圆工作台旋转(圆工作台只需要单向旋转)。由KM3
的通电路径可见，只要扳动工作台进给操作的任何—个手柄，
SQ3～SQ5其中—个行程开关的动断触点断开，都会切断KM3，
使圆工作台停止运动，从而保证了工作台的进给运动和圆工作台
的旋转运动不会同时进行。
? （5）控制电路的联锁与保护
①进给运动与主轴运动的联锁
只有在主轴起动之后，工作台的进给运动才能进行。
②工作台六个运动方向的联锁
只要两个操纵手柄同时扳动，进给电路立即切断，实现了
工作台各方向进给间的联锁控制。
③工作台进给与圆工作台的联锁
使用圆工作台时，必须将两个进给操纵手柄都置于中间位
置。
④进给运动方向上的极限位置保护
机械和电气相结合的方式，由挡块确定各进给方向上的极
限位置。
? 3．冷却泵和照明电路（图区３）
冷却泵只有在主电动机起动后才能起动，所以主电路中将M3
接在主接触器KM1触点之后，另外还可用开关QS2控制。
SA4为灯开关，由照明变压器TC3提供24 V的工作电压给照明
灯EL， FU5作短路保护。Siemens 6RA4013-4BA01 Siemens 6RA40 Complete 2 Axis Servo Drive
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Siemens 6RB2000-0AA01 Breaking Card
Siemens 6RB2000-0GA00 Siemens 6RB20 DC Drive Power Supply Card
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Siemens 6RB2000-0GB01 Siemens 6RB20 Power Supply Card
Siemens 6RB2000-0NB00 Siemens 6RB2000 Servo Drive Card
Siemens 6RB2000-0ND00 Siemens 6RB20 DC Servo Drive Regulator Card
Siemens 6RB2000-0NE00 Siemens 6RB20 DC Servo Drive Regulator Card
Siemens 6RB2000-0NF00 Siemens 6RB20 DC Servo Drive Axis Card
Siemens 6RB2000-0NF01 Siemens 6RB20 DC Servo Drive Regulator Card
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Siemens 6RB2025-0FA00 Siemens 6RB20 DC Servo Drive Stack Card
Siemens 6RB2025-0FA01 Siemens 6RB20 DC Servo Drive Stack Card
Siemens 6RB2025-2EA00 Siemens 6RB20 Rack
Siemens 6RB2030-0FA00 Stack Card
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Siemens 6RB2060-0FB00 Siemens 6RB20 DC Servo Drive Stack Card
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Siemens 6RB2100-0NA21 Siemens 6RB21 Series Control Card
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Siemens 6RB2110-0FF01 Siemens  GV1-M14  6RB21 Servo Card
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Siemens 6RB2130-0FD00 Siemens 6RB21 DC Servo Drive Stack Card
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Siemens 6RB2160-0FB00 Siemens 6RB21 Stack Card
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Siemens 6SC6100-0AA00 Siemens 6SC610 PSU Go-Card
Siemens 6SC6100-0GA12 Siemens 6SC610 PSU Go-Card
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Siemens 6SC6100-0GB12 Siemens 6SC610 AC Servo Drive Power Supply
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Siemens 6SC6100-0NA01 Siemens 6SC610 Single Axis Control Card
Siemens 6SC6100-0NA11 Siemens 6SC610 Two Axis Control Card
Siemens 6SC6100-0NA21 Siemens 6SC610 3-Axis Control Card
Siemens 6SC6100-0SA21 Siemens 6SC610 3-Axis Personality Card
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Siemens 6SC6108-0SG01 Siemens 6SC610 Servo Drive Card
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Siemens 6SC6108-0SN00 Siemens 3 Axis Servo Drive
Siemens 6SC6110-0GA01 Siemens Simodrive
Siemens 6SC6110-0GB00 Simodrive Breaking Unit
Siemens 6SC6110-3AA00 Siemens 611 Servo Drive. (with 611A control)
Siemens 6SC6110-5DA00 Siemens 611 Spindle Drive
Siemens 6SC6110-6AA00 Siemens 611 Servo Drive
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Siemens 6SC6111-1VA01 Siemens 611 Power Module Regenerative 22KW
Siemens 6SC6111-2AA00 Siemens 611 Analogue Servo Drive 24A
Siemens 6SC6111-5DA00 Siemens 611 Servo Drive (Induction Module)
Siemens 6SC6112-0AA00 Siemens 611 Single Axis Servo Unit
Siemens 6SC6112-2VA01 Power Supply Unit
Siemens 6SC6112-2VA01 Simodrive Power Supply
Siemens 6SC6112-4HA00 Siemens 611 Spindle Drive (HSA)
Siemens 6SC6113-0DA00 Siemens 611 Servo Drive
Siemens 6SC6113-0HA00 Siemens 6SC611 Spindle Drive
Siemens 6SC6114-0AA00 Siemens 611 Servo Unit
Siemens 6SC6115-5VA01 Power Supply Unit
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Siemens 6SC6116-0HA00 Siemens Simodrive Module
Siemens 6SC6120-0FE00 Siemens 6SC610 20A Stack Card
Siemens 6SC6120-0FE01 Siemens 6SC610 Servo Stack Card
Siemens 6SC6130-0FE00 Siemens 6SC AC Servo Stack Card
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Siemens 6SC6130-0FF00 Siemens 6SCAc Servo Stack Card
Siemens 6SC6140-0FE00 6SC610 Series 40Amp Single Axis Stack Card
Siemens 6SC6140-0FE01 6SC610 Series 40Amp Single Axis Stack Card