12 PKC SERIES PACKAGED STEPPER DRIVES USER GUIDE
Motor Supply
Voltage
Setting
As supplied the drive will operate at a motor supply voltage of 85v DC.
This is necessary in order to obtain the optimum high-speed
performance, but in low-speed applications it may be preferable to use a
lower supply voltage. In this way the power dissipation in both motor and
drive is minimised. The supply voltage may be changed by removing the
drive cover as outlined in Chapter 5 "Removal and Replacement of Drive
Module", and rearranging the transformer leads as follows:
85v DC supply
55v DC supply
White lead to tab 9
White lead to tab 1
Red lead to tab 1
Red lead to tab 9
Control Signal
Connections
All control signals are taken to terminals TB1 and TB2, these
terminals being arranged on two levels. TB1 is the lower terminal
and is numbered 1 to 15, TB2 is the upper terminal and is numbered
16 to 30. The terminal functions are as follows:
Term
No.
Terminal Function
Term
No.
Terminal Function
1
+24v out
16
Positive motion limit input
2
Fault output
17
Negative motion limit input
3
Zero phase output
18
Direction request input
4
Ext. reset input
19
Allow clock input
5
Motor direction (in or out)
20
Motion /deceleration complete out
6
Motor clock (in or out)
21
Fast 2 input
7
Energise input
22
Slow 2 input
8
0v.
23
Slow adjust 2 (a)
9
Slow adjust 1
24
Slow adjust 2 (b)
10
Fast adjust 1
25
Fast adjust 2 (a)
11
Speed adjust 1 common
26
Fast adjust 2 (b)
12
Fast 1 input
27
Ramped or buffered clock output
13
Slow 1 input
28
Motion rein motion out
14
Not used
29
Internal clock out/home speed in
15
Not used
30
Buffered clock in/fast modify in
Table 2-3. Control Connector Terminal Functions
The built-in oscillator is referred to as clock 1 and the optional BC7
or RC9 card as clock 2. Terminals 16 - 30 are only used when the
optional clock card is fitted.
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