Connections
Copyright HMS Technology Center
Ravensburg GmbH
6
FRC-EP170 Manual, Version 1.3
The power supply cable has the following colors on the individual lines.
Pin
Color
Signal Description
1
white
ws/WT
VDC
+
Power 6 to +36 V
with 4 mm red laboratory plug
2
brown
br/BN
Ground
-
Power supply ground
with 4 mm black laboratory plug
3
green
gn/GN
KL15
Digital input clamp15
with 4 mm green laboratory plug
Table 2-2: Pinouts of the power cable
The type of connector on the FRC-EP 170 is a 3-pin Binder male panel mount
connector, 710 series, 09-0977-00-03.
The type of connector on the cable is a 3-pin Binder female cable connector,
710 series, 99-0976-10x-03.
Clamp 15 (KL15) function
Clamp 15 on the power connector has multiple functions. First, KL15 can be
used as a wake-up from hibernate mode, and KL15 is also used when the
system is turned on or booted to inform the software whether a software
update procedure should be carried out.
A software command can cause the FRC-EP 170 to switch from normal mode
into hibernate mode. If KL15 is activated in hibernate mode, that is, a voltage
of over 6 V is applied, then the device is waked up, the system reboots, and it
is then ready for operation. Before the command for hibernate mode, KL15
must be switched to ground (0 V).
KL15 is equipped with a pull-up resistor to +VDC (~80 kOhms). If KL15 is left
open, the system behaves as though KL15 were still connected to power. This
is the normal case and the system works in normal mode. In this case,
hibernate mode is not possible, since the system would be immediately
wakened again after the command for hibernate mode was issued.
If the system needs to be updated to a new software version, it is possible to
signal this with KL15. If KL15 is connected to ground (0 V) and the device then
turned on, the software enters update mode.
Содержание FRC-EP170
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