User Manual 08/2003 Edition
User Manual 08/2003 Edition
User Manual 08/2003 Edition
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02.99 05.03<br />
n-set mode<br />
STW<br />
ZSW<br />
Control word<br />
Status word<br />
START<br />
p Bit dep. on the program (0 or 1)<br />
s Traversing task bit of the STW<br />
x Bit not defined (0 or 1)<br />
Change from 0 to 1 or 1 to 0<br />
Change from 0 to 1 and back again<br />
Change from 1 to 0 and back again<br />
Voltage<br />
ON<br />
Not ready to<br />
1) this is only valid if STW.5 = 0<br />
power–up<br />
(the speed actual value is kept ZSW =<br />
constant)<br />
x00x x111 x000 x000<br />
Speed,<br />
constant<br />
i.e. STW.5 = 0<br />
Braking down to zero<br />
speed along a ramp<br />
ZSW =<br />
xxxx xxxx x0x1 1111<br />
Braking,<br />
i.e.<br />
STW.4 = 0<br />
Braking with maximum<br />
acceleration<br />
ZSW =<br />
xxxx xxxx x0x0 1111<br />
Speed,<br />
constant,<br />
i.e. STW.5 = 0<br />
Enable<br />
setpoint,<br />
i.e. STW.6 = 1<br />
Setpoint<br />
inhibit<br />
i.e. STW.6 = 0<br />
Speed<br />
increases,<br />
i.e. STW.5 = 1<br />
STW.6 = 1 1)<br />
STW.6 = 0 1)<br />
Inhibit setpoint<br />
i.e. STW.6 = 0<br />
Enable setpoint<br />
i.e. STW.6 = 1<br />
Initializing<br />
i.e.<br />
STW = xxxx xxxx x000 1111<br />
Operation enabled<br />
ZSW =<br />
1x0x xxxx x000 1111<br />
Siemens AG <strong>2003</strong> All rights reserved<br />
SIMODRIVE POSMO A <strong>User</strong> <strong>Manual</strong> (POS1) – <strong>08</strong>.03 <strong>Edition</strong><br />
Power–on inhibit<br />
ZSW<br />
x00x x111 x111 0000<br />
Speed setpoint is accepted<br />
i.e. STW.4/5/6 = 1 (any<br />
sequence)<br />
Ramp–up to the<br />
setpoint<br />
ZSW =<br />
xxxx xxxx x111 1111<br />
Constant speed,<br />
i.e. STW.5 = 0<br />
Speed actual value is<br />
kept constant<br />
ZSW =<br />
xxxx xxxx x101 1111<br />
Braking,<br />
i.e. STW.4 =0<br />
Braking with maximum<br />
acceleration<br />
ZSW =<br />
xxxx xxxx x1x0 1111<br />
Speed<br />
constant,<br />
i.e. STW.5 = 0<br />
Fig. 4-6 Flow diagram, ”Variable–speed drives” for the n-set mode<br />
4 Communications via PROFIBUS DP<br />
OFF 1<br />
i.e.<br />
STW.0 =<br />
Braking,<br />
i.e.<br />
STW.4 = 0<br />
4.2 Process data (PZD area)<br />
OFF 2<br />
i.e. STW.1 = 0<br />
(from each<br />
device status)<br />
OFF 2 active<br />
ZSW =<br />
xxxx xxxx x1x0 x000<br />
No OFF 2<br />
i.e. STW.1 = 1<br />
OFF 3<br />
i.e. STW.2 = 0<br />
(from any<br />
device status)<br />
OFF 3 active<br />
ZSW =<br />
xxxx xxxx x10x x000<br />
No OFF 3<br />
i.e. STW.2 = 1<br />
Fault<br />
(from any<br />
device status)<br />
Fault<br />
ZSW =<br />
xxxx xxxx xxxx 1xxx<br />
Fault resolved,<br />
acknowledge faults<br />
i.e. STW.7 =<br />
4-109<br />
4
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