Etel DSC2P - Page 116

Operation & Software Manual
116
Direct Drives & Systems
Chapter C: System functions ETEL Doc. - Operation & Software Manual # DSC2P 903 / Ver. F / 3/6/05
To activate bit 5 of parameter K32, it is possible to choose the state and the digital input that will
activate the limitation. To do so, the depth 2 of parameters K178 and K179 is used:
•K178:2 defines the mask of the digital input that must be at 1 to activate the limitation
(bit0=DIN1, bit1=DIN2, bit2=DIN3, bit3=DIN4, bit4=DIN5, bit5=DIN6, bit6=DIN7,
bit8=DIN9 and bit9=DIN10). Refer to the corresponding ’Hardware Manual’ to know the
number of the digital inputs present.
•K179:2 defines the mask of the digital input that must be at 0 to activate the limitation
bit0=DIN1, bit1=DIN2, bit2=DIN3, bit3=DIN4, bit4=DIN5, bit5=DIN6, bit6=DIN7, bit8=DIN9
and bit9=DIN10). Refer to the corresponding ’Hardware Manual’ to know the number of the
digital inputs present.
Bit# 5 of K32=1
•If at least one of the conditions defined by K178:2 and K179:2 is true, depth 3 of parameter
K60 (K60:3) is kept as the limitation of the force/torque and depth 3 of K31 (K31:3) as the
value of the overspeed.
•If none of the conditions defined by K178:2 and K179:2 is true, depth 0 of parameter K60
(K60:0) is kept as the limitation of the force/torque and depth 0 of K31 (K31:0) as the value of
the overspeed.
•If K178:2=0 and K179:2=0 (state 0 of DIN2 activates the limit), depth 3 of parameter K60
(K60:3) is kept as the limitation of the force/torque and depth 3 of K31 (K31:3) as the value of
the overspeed.
Bit# 5 of K32=0
•The limitation is not activated, depth 0 of parameter K60 (K60:0) is kept as the limitation of
the force/torque and depth 0 of K31 (K31:0) as the value of the overspeed.
Example:
Here the limitation is activated if DIN1=1 (K178:2=1) or if DIN2=0 (K179:2=2):
When a motor is not positioned on a home switch, the latter is set to “0”, and when it is positioned on it, it is set
to “1”. However these values can be inverted as well as for the home switch.
Parameter K58 allows the user to define the type of home switch and/or limit switch used because it is also
possible to select the limit switches of the encoder.
K Name Value Bit # Comment
K58
Home switch and
limit switch mode
0
1
2
4
8
-
-
-
Bit 2
Bit 3
Limit switches on DIN9 and DIN10
Limit switches L1 / L2 (L1 = ELS pin signal and L2 = EHO pin signal)
Limit switches L / H (L = ELS pin signal and H = EHO pin signal)
Home switch on DIN1 (for DSCDM only)
Home switch on DIN9 (for DSCDM only)
K60:0
K60:3
K31:0
K31:3
DIN1
DIN2
Bit#5
of K32
Theoretical limit of the force/torque
Limitation of the limit to generate the overspeed error