Operation
SHZF2/SHZF3 SCR Power Controller
14
Ametek HDR Power Systems
Rev 2
4.6 On/Off
Control
Some applications require that a simple ON/OFF type control be used. The unit can be used in these
simple applications. It can be connected for turn on by a contact closure.
With the SHZF2/SHZF3configured for non-isolated inputs and the power to the SHZF2/SHZF3 turned
off, connect the system as shown in Figure 4.5. A closed contact will turn on (enable) the
SHZF2/SHZF3.
Figure 4.5 On/Off Control
4.7 Shutdown
When it is necessary to shutdown or disable the output, it is a simple matter. Connect a dry contact
closure between terminals 3 and 4 of the firing circuit as shown in Figure 4.6. A closed contact will
disable the SHZF2/SHZF3 output.
10
1
2
3
4
5
6
7
8
9
TB1
+IN
+12V
K
Controller
JUMPER
Figure 4.6 Shutdown Control
(Output Disabled By Contact Closure)
Calibrate the system by performing the steps in 4.3. Note that zero power demand is accomplished by
closing the contacts with the controller, and maximum power demand is present when the contacts are
open.
WARNING
This method of control is not to be used with isolated inputs
!
Summary of Contents for SHZF2 SCR Series
Page 6: ...Table of Contents SHZF2 SHZF3 SCR Power Controller iv Ametek HDR Power Systems Rev 2...
Page 8: ...Safety Instructions SHZF2 SHZF3 SCR Power Controller 2 Ametek HDR Power Systems Rev 2...
Page 12: ...Options SHZF2 SHZF3 SCR Power Controller 6 Ametek HDR Power Systems Rev 2...
Page 24: ...Operation SHZF2 SHZF3 SCR Power Controller 18 Ametek HDR Power Systems Rev 2...
Page 32: ...Troubleshooting SHZF2 SHZF3 SCR Power Controller 26 Ametek HDR Power Systems Rev 2...
Page 46: ...Appendix SHZF2 SHZF3 SCR Power Controller 40 Ametek HDR Power Systems Rev 2...
Page 47: ......
Page 48: ...503 Lakeview Plaza Blvd Ste C Worthington Ohio 43085 USA...
