Magpowr PS90 Instruction Manuals - page 2
2
REMOTE POTENTIOMETER
1K TO 10K
L1
OUTPUT METER
L2
+
-
90V
1mA
POTENTIOMETER
or 0-10V INPUT
SHIELD
+
-
1
2
3
4
5
6
7
23
VAC
115
CW
-
+
24
25
26
ALLOWED IN
(OPTIONAL)
CLUTCH/
BRAKE
METER
REMOTE
0-1 mA DC
D.C. OUTPUT
115 VAC
50/60 Hz
SWITCH NOT
7
1
JP1
Wiring to and from the PS90 must be done with double or reinforced insulation or protective screening which
provides protective separation. All wiring should comply with the essential requirements of the appropriate
standard(s) and is the responsibility of the installer.
Route AC power away from control signal wiring. Connect shields of shielded cable to the terminals indicated as
“SHIELD”. Maximum shield length and maximum length of wires outside of the shield is 3 in. (75 mm).
3.0 Setup
Remove the enclosure top by inserting a flat blade screwdriver under the retaining tabs in the base (See figure 2).
Set the JP1 current range selection jumpers to the range appropriate for the clutch / brake connected to the PS90
(See figure 3 for current range settings). The factory setting is 1/8 amp range. Replace the enclosure top.
Figure 2
Figure 3
Enclosure
Top
Removal
JP1
Current
Range
Settings
4.0 Electrical Connections
Figure 4 shows the connections that are required for the basic system. They are:
115 vac power
90 vdc output for clutch / brake
1 to 10 kohm Potentiometer
Route AC power away from control wiring. The clutch / brake wires and the remote meter wires should be twisted
pair. Run the signal input wiring in shielded cable. Connect the shield to the provided terminal marked “SHIELD”.
The maximum shield length and maximum length of wires outside of the shield is 3 in. (75 mm).
When using a 0-10 vdc input instead of a potentiometer, connect the negative of the input to terminal 26 and the
positive of the input to terminal 25.
The 90 vdc output and the remote meter output are not isolated from the AC line and must not be ground
referenced. The potentiometer input is isolated and may be ground referenced.
Figure 4
Electrical Connections for PS90