- Parker Compact Servo Controller User Guide

A
ccessories and options
COMPAX-M / -S
186
9.6.7 Analogue speed specification (E7)
(option not available with COMPAX 1000SL)
Option E7 "Analogue speed specification" is available with COMPAX
XX6X "Electronic transmissions" and COMPAX XX70 "Cam controller".
Exception:
In addition, E7 can be used with COMPAX XX00 to implement an external
speed specification with the command "SPEED SYNC"; see Page 99
The "Encoder input" option (E2 or E4) cannot be used at the same time as
E7.
Using option E7, you can specify a nominal speed value via connector X13 as
analogue voltage in the range -10V to +10V. Use 2 digital inputs (PLC level), to
define a nominal speed value of 0 and to initiate a change in the rotational
direction.
The following configuration data must therefore be assigned permanent values:
P80 = "16" (general drive).
P90 = "1" (mm unit).
P83 = 100000 µm (travel per motor revolution).
P93 = "4" (speed control mode).
P143 = 600 000
P144 = "7" (analogue speed specification).
P35 = "1" (transmission factor 1) (I15="0")
I16 = "1" (external nominal value is valid)
These parameters influence the interrelation between voltage and speed; they
must therefore be specified and fixed. Specify the required speed directly in P98 in
min
-1
when input voltage is +10V.
Linearity error: <1%
Amplification error: <5% (you can compensate for these with P98).
Offset: <15 mV
Temperature drift: 100 ppm/K
Connector X13:
Pin X13 or
EAM4/01 X1:
(encoder assignment)
COMPAX-
Input I
Output O
Signal Circuit proposal
6 (B1) A +15V <10 mA
7 (O1) E UE
13 (B1\) A -15V <10 mA
15 (GND) A GND
14 (O1\) E UE\ Bridge to 15 (GND)
5 (N1) E Enable "1" for enable
"0" ≡ nominal digital
value 0
12 (N1\) E
Direction of
rotation
"1" for positive direction
of rotation
1 Screen
Level on the "Enable" and "Direction of rotation" inputs: 5.5V...30V = "1".
UE and UE\ is a differential input. Actively assign UE\ to a potential (e.g. to
GND).
Only in COMPAX
XX6X and
COMPAX XX70
Configuration:
Accuracy
Connection
assignment