134
Operating Instructions – Electronic Motor DRC.-..-SNI
8
Description of power section parameters
Parameters
Reference speed 1
index 8624.0
Reference speed 1 determines the travel speed for the first part of the reference travel.
Stop ramp t13 is always used to change the speed. The search directions during refer-
ence travel are determined by the respective reference travel type. The speed is in effect
until the reference cam has been reached.
• Setting range: 0 – 200
– 2000 rpm
Reference speed 2
index 8625.0
Reference speed 2 determines the travel speed for the second part of the reference
travel. Stop ramp t13 is always used to change the speed. The search directions during
reference travel are determined by the respective reference travel type. The speed is
effective from the time the drive leaves the reference cam until it reaches the first zero
pulse.
• Setting range: 0 – 50
– 2000 rpm
The reference speed is limited to 50 rpm for reference travel type 0 and for referencing
to a zero pulse.
Reference travel
type index 8626.0
The reference travel type specifies the reference travel strategy that is used to establish
the machine zero of a machine.
• Setting range: 0
– 7
This setting also defines the search direction for the reference cam in the individual
referencing phases.
Use parameter index 8839.0 referencing to zero pulse to determine if the reference
travel takes place to the edge change of the reference cam or the next zero pulse of the
encoder.
The drive must be ready for operation and enabled for all types of reference travel to
take place.
Some types are available that work without a reference cam.
• Type 0: Left zero pulse
– First search direction is CCW
– Reference position = Left zero pulse from current position
– Machine zero = reference position + reference offset
• Type 1: Left end of the reference cam
– First search direction is CCW
– Reference position = First zero pulse or falling edge to the left of the reference
cam
– Machine zero = reference position + reference offset
• Type 2: Right end of the reference cam
– First search direction is CW
– Reference position = First zero pulse or falling edge to the right of the reference
cam
– Machine zero = reference position + reference offset
• Type 3: Limit switch right
– First search direction is CW
– Reference position = First zero pulse or falling edge to the left of the right limit
switch.
– Machine zero = reference position + reference offset
– Reference travel should take place to zero pulse.
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