Magnetek HPV 900 Series 2, Technical Manual

Page: 55 / 230

Interconnections
33
Analog Inputs
The HPV 900 Series 2 has two non-
programmable differential analog input
channels.

Analog input channel 1 is reserved for the
speed command (if used).

Analog input channel 2 is reserved for the
pre-torque command (if used).
The analog input channels are bipolar and
have a voltage range of

10VDC.
Available with the analog channels is multiplier
gain parameters (SPD COMMAND MULT and
PRE TORQUE MULT) and bias parameters
(SPD COMMAND BIAS and PRE TORQUE
BIAS). These parameters are used to scale the
user’s analog command to the proper range for
the drive software. The formula below shows
the scaling effects of these two parameters.
uses
software
drive
signal
MULT BIAS
voltage
input
channel
analog
 













For more on the multiplier gain or bias
parameters, see Drive A1 Submenu on page
40 .
The scaling of the analog input signals follows:

Speed Command
+10VDC = positive contract speed
-10VDC = negative contract speed

Pre Torque Command
+10VDC = positive rated torque of motor
-10VDC =
negative rated torque of motor
NOTE: The drive cannot recognize voltages
outside of the

10VDC on its analog input
channels.
Figure 23: Analog Input Scaling
The HPV 900 Series 2 provides common
mode noise rejection with the differential
analog inputs. The connection of these two
inputs is shown in Figure 24
Figure 24: Analog Inputs (Differential)
Figure 25 shows the connection for the analog
inputs, if they are configured to be single
ended. In this configuration, the HPV 900
Series 2 noise immunity circuitry is not in
effect.
Figure 25: Analog Inputs (Single Ended)
As a reference, please refer to the table below
if replacing an HPV900 or HPV600 with the
HPV900 Series 2 drive.
Terminal
Description
Analog Input Connections
HPV900
Series 2
HPV900 HPV600
analog common TB2-2 TB1-29 TB1-2
analog input 1 (+) TB2-3 TB1-28 TB1-3
analog input 1 (-) TB2-4 TB1-27 TB1-4
analog input 2 (+) TB2-5 TB1-31 N/A
analog input 2 (-) TB2-6 TB1-30 N/A
shield TB2-7 TB1-32 TB1-1
Table 7: Analog Input Connections
0V
+10V
+10V
+5V
-10V
Speed
Command
Input
+10V to 0V
Signal
Drive Software
Uses
+10V to -10V
effect of parameter
SPD COMMAND
MULT = 2
effect of parameter
SPD COMMAND
BIAS = +5
-5V
Speed Zero
Band = 0.5
-0.5V
+10V
+0.5V
-10V
TB2
2
3
4
5
6
7
analog common
analog input 1 (+)
analog input 1 (-)
analog input 2 (+)
analog input 2 (-)
shield
Speed Cmd

10VDC
PreTorque Cmd

10VDC
analog common
analog input 1 (+)
analog input 2 (-)
TB2
2
3
4
5
6
7
analog input 1 (-)
analog input 2 (+)
shield
Speed Cmd

10VDC
PreTorque Cmd

10VDC