Despatch 1500 Controller - Manual (Page 43)

Despatch/Watlow 1500 Control Instruction Manual Page 37
DIP Switch
No.
FUNCTION
ON OFF
1 Auxiliary (Event) Output #4 for both Ch-1
and Ch-2 are alarm outputs. Auxiliary (Event) Output #4 for both Ch-1
and Ch-2 are event outputs.
2 Alarms are latching (displayed until
cleared manually). Alarms are non-latching (displayed only
as long as the alarm condition exists).
3 RTD Unit Only
The Ch-2 sensor is an RTD sensor.
Jumpers W151 and W153 on the signal
conditioner board (A007-1316) must be
installed.
T/C Unit Only
Not used. Set in the ON position.
The Ch-2 sensor is an RTD sensor.
Jumpers W151 and W153 on the signal
conditioner board (A007-1316) must be
installed.
4 Dual PID per channel. Single PID per channel.
5 Factory use only. Must be in the ON
position.
6 Cold start on power-up. (Memory
cleared, parameters set to default
values.)* Warm start on power-up. (Programmed
values are retained for all parameters.)*
7 E C function after a cold start. E F function after a cold start.
8 Not used. Set in the OFF position.
Table 10 DIP Switch Selection
Warm/Cold Start (Cont.)
Changing the Position of a Switch
Whenever you change the position of a DIP switch, follow
this procedure.
1. Remove power from the 1500. Turn the front panel to
loosen the controller from the case.
2. Grip the front panel bezel and pull it straight out from
the control case. The control chassis will come out of
the case as you pull the bezel.
3. Set the DIP switch to the position you want.
4. Return the control chassis to the case. Be sure you
have it oriented correctly. It will not fit in upside down,
but check just the same. Press firmly, but gently, to
seat the chassis.