Issue 1.5
Q-Drive Installation Manual
Copyright © 1996 Quin Systems Ltd.
Page 9
3.4.2
Drive Performance Specification
Note:
I
rms
= I
peak
/ 1.41
P =1.73 x I
rms
x V
rms
or P= 3 x I
rms phase
x V
rms phase
- in star V
rms phase
= 210V / 1.73
I
rms phase
= I
rms
- in delta V
rms phase
= 210V
I
rms phase
= I
rms
/ 1.73
Example:
Type PQD506 I
rms max
= 11.8 A
rms rated
= 5.9 A
P
max
= 1.73 x 11.8 x 210 = 4.3 kW
P
rated
= 1.73 x 5.9 x 210 = 2.1 kW
3.4.3
Analogue readings on the motherboard
The Q-Drive motherboard contains several measurement points which permit an
analogue reading of the three signals shown in Table 2-
The location of the measurement points is shown in Figure 24. on page 61
Servo-amplifier type:
PQD506
PQD510
PQD518
Rated rms current
Amps
5,9
10,0
18,7
Rated peak current
Amps
8,3
14,2
26,4
Max. rms current
Amps
11,8
20,1
37,3
Max. peak current
Amps
16,7
28,4
52,8
Rated power
(kW)
2,1
3,6
6,8
Max. power
(kW)
4,3
7,3
13,6
Table 1: Drive Data
M e a s u r e m e n t
point
Description
Scaling
Current
Instantaneous Current
10V corresponds to the max. current of
the unit
Command
Internal command voltage
V
command
= V
ext. cmd
Speed
Motor speed
+/- 10V corresponds to the max. speed
of 6000 rpm
Table 2: Test Points
